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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<a href="#redland-query-results.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#redland-query-results.description" class="shortcut">Description</a>
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<div class="refentry">
<a name="redland-query-results"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="redland-query-results.top_of_page"></a>Query results</span></h2>
<p>Query results — RDF query results.</p>
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<div class="refsynopsisdiv">
<a name="redland-query-results.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">typedef             <a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results">librdf_query_results</a>;
<a class="link" href="redland-stream.html#librdf-stream" title="librdf_stream"><span class="returnvalue">librdf_stream</span></a> *     <a class="link" href="redland-query-results.html#librdf-query-results-as-stream" title="librdf_query_results_as_stream ()">librdf_query_results_as_stream</a>      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-get-count" title="librdf_query_results_get_count ()">librdf_query_results_get_count</a>      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-next" title="librdf_query_results_next ()">librdf_query_results_next</a>           (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-finished" title="librdf_query_results_finished ()">librdf_query_results_finished</a>       (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-get-bindings" title="librdf_query_results_get_bindings ()">librdf_query_results_get_bindings</a>   (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> ***names</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> **values</code></em>);
<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="returnvalue">librdf_node</span></a> *       <a class="link" href="redland-query-results.html#librdf-query-results-get-binding-value" title="librdf_query_results_get_binding_value ()">librdf_query_results_get_binding_value</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> offset</code></em>);
const <span class="returnvalue">char</span> *        <a class="link" href="redland-query-results.html#librdf-query-results-get-binding-name" title="librdf_query_results_get_binding_name ()">librdf_query_results_get_binding_name</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> offset</code></em>);
<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="returnvalue">librdf_node</span></a> *       <a class="link" href="redland-query-results.html#librdf-query-results-get-binding-value-by-name" title="librdf_query_results_get_binding_value_by_name ()">librdf_query_results_get_binding_value_by_name</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-get-bindings-count" title="librdf_query_results_get_bindings_count ()">librdf_query_results_get_bindings_count</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
unsigned <span class="returnvalue">char</span> *     <a class="link" href="redland-query-results.html#librdf-query-results-to-counted-string" title="librdf_query_results_to_counted_string ()">librdf_query_results_to_counted_string</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>,
                                                         <em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);
unsigned <span class="returnvalue">char</span> *     <a class="link" href="redland-query-results.html#librdf-query-results-to-counted-string2" title="librdf_query_results_to_counted_string2 ()">librdf_query_results_to_counted_string2</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>,
                                                         <em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);
unsigned <span class="returnvalue">char</span> *     <a class="link" href="redland-query-results.html#librdf-query-results-to-string" title="librdf_query_results_to_string ()">librdf_query_results_to_string</a>      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);
unsigned <span class="returnvalue">char</span> *     <a class="link" href="redland-query-results.html#librdf-query-results-to-string2" title="librdf_query_results_to_string2 ()">librdf_query_results_to_string2</a>     (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-to-file-handle" title="librdf_query_results_to_file_handle ()">librdf_query_results_to_file_handle</a> (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">FILE</span> *handle</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-to-file-handle2" title="librdf_query_results_to_file_handle2 ()">librdf_query_results_to_file_handle2</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">FILE</span> *handle</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-to-file" title="librdf_query_results_to_file ()">librdf_query_results_to_file</a>        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-to-file2" title="librdf_query_results_to_file2 ()">librdf_query_results_to_file2</a>       (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="redland-query-results.html#librdf-free-query-results" title="librdf_free_query_results ()">librdf_free_query_results</a>           (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-is-bindings" title="librdf_query_results_is_bindings ()">librdf_query_results_is_bindings</a>    (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-is-boolean" title="librdf_query_results_is_boolean ()">librdf_query_results_is_boolean</a>     (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-is-graph" title="librdf_query_results_is_graph ()">librdf_query_results_is_graph</a>       (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-is-syntax" title="librdf_query_results_is_syntax ()">librdf_query_results_is_syntax</a>      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-get-boolean" title="librdf_query_results_get_boolean ()">librdf_query_results_get_boolean</a>    (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);
<a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="returnvalue">librdf_query_results_formatter</span></a> * <a class="link" href="redland-query-results.html#librdf-new-query-results-formatter" title="librdf_new_query_results_formatter ()">librdf_new_query_results_formatter</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *uri</code></em>);
<a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="returnvalue">librdf_query_results_formatter</span></a> * <a class="link" href="redland-query-results.html#librdf-new-query-results-formatter-by-mime-type" title="librdf_new_query_results_formatter_by_mime_type ()">librdf_new_query_results_formatter_by_mime_type</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>);
<a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="returnvalue">librdf_query_results_formatter</span></a> * <a class="link" href="redland-query-results.html#librdf-new-query-results-formatter2" title="librdf_new_query_results_formatter2 ()">librdf_new_query_results_formatter2</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *uri</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="redland-query-results.html#librdf-free-query-results-formatter" title="librdf_free_query_results_formatter ()">librdf_free_query_results_formatter</a> (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> *formatter</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-formats-check" title="librdf_query_results_formats_check ()">librdf_query_results_formats_check</a>  (<em class="parameter"><code><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a> *world</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *uri</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>);
const <span class="returnvalue">raptor_syntax_description</span> * <a class="link" href="redland-query-results.html#librdf-query-results-formats-get-description" title="librdf_query_results_formats_get_description ()">librdf_query_results_formats_get_description</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a> *world</code></em>,
                                                         <em class="parameter"><code>unsigned <span class="type">int</span> counter</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()">librdf_query_results_formats_enumerate</a>
                                                        (<em class="parameter"><code><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a> *world</code></em>,
                                                         <em class="parameter"><code>const unsigned <span class="type">int</span> counter</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> **name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> **label</code></em>,
                                                         <em class="parameter"><code>const unsigned <span class="type">char</span> **uri_string</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> **mime_type</code></em>);
typedef             <a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter">librdf_query_results_formatter</a>;
<span class="returnvalue">int</span>                 <a class="link" href="redland-query-results.html#librdf-query-results-formatter-write" title="librdf_query_results_formatter_write ()">librdf_query_results_formatter_write</a>
                                                        (<em class="parameter"><code><span class="type">raptor_iostream</span> *iostr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> *formatter</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="redland-query-results.description"></a><h2>Description</h2>
<p>
The results of an <a class="link" href="redland-query.html#librdf-query" title="librdf_query"><span class="type">librdf_query</span></a> execution as a sequence of individual
results, an RDF graph as a sequence of triples or a boolean.  For
variable binding results, the binding names and values can be read in
multiple forms and the number of results returned as well as the
current result moved to the next.  For an RDF graph result, the
stream of triples can be returned. For a boolean result, the value
can be returned.  All results can be turned into a string XML format
based on the SPARQL XML results format which can also be written to a file.
</p>
</div>
<div class="refsect1">
<a name="redland-query-results.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="librdf-query-results"></a><h3>librdf_query_results</h3>
<pre class="programlisting">typedef struct librdf_query_results_s librdf_query_results;
</pre>
<p>
Redland query results class.
</p>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-as-stream"></a><h3>librdf_query_results_as_stream ()</h3>
<pre class="programlisting"><a class="link" href="redland-stream.html#librdf-stream" title="librdf_stream"><span class="returnvalue">librdf_stream</span></a> *     librdf_query_results_as_stream      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Get a query result as an RDF graph in <a class="link" href="redland-stream.html#librdf-stream" title="librdf_stream"><span class="type">librdf_stream</span></a> form
</p>
<p>
The return value is only meaningful if this is an RDF graph
query result - see <a class="link" href="redland-query-results.html#librdf-query-results-is-graph" title="librdf_query_results_is_graph ()"><code class="function">librdf_query_results_is_graph()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query_results</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="redland-stream.html#librdf-stream" title="librdf_stream"><span class="type">librdf_stream</span></a> result or NULL on error</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-get-count"></a><h3>librdf_query_results_get_count ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_get_count      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Get number of bindings so far.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>number of bindings found so far</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-next"></a><h3>librdf_query_results_next ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_next           (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Move to the next result.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if failed or results exhausted</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-finished"></a><h3>librdf_query_results_finished ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_finished       (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Find out if binding results are exhausted.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if results are finished or query failed</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-get-bindings"></a><h3>librdf_query_results_get_bindings ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_get_bindings   (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> ***names</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> **values</code></em>);</pre>
<p>
Get all binding names, values for current result.
</p>
<p>
If names is not NULL, it is set to the address of a shared array
of names of the bindings (an output parameter).  These names
are shared and must not be freed by the caller
</p>
<p>
If values is not NULL, it is used as an array to store pointers
to the librdf_node* of the results.  These nodes must be freed
by the caller.  The size of the array is determined by the
number of names of bindings, returned by
librdf_query_results_get_bindings_count dynamically or
will be known in advanced if hard-coded into the query string.
</p>
<p>
Example
</p>
<p>
const char **names=NULL;
librdf_node* values[10];
</p>
<p>
if(librdf_query_results_get_bindings(results, &amp;names, values))
  ...
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>names</code></em> :</span></p></td>
<td>pointer to an array of binding names (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>values</code></em> :</span></p></td>
<td>pointer to an array of binding value <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if the assignment failed</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-get-binding-value"></a><h3>librdf_query_results_get_binding_value ()</h3>
<pre class="programlisting"><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="returnvalue">librdf_node</span></a> *       librdf_query_results_get_binding_value
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> offset</code></em>);</pre>
<p>
Get one binding value for the current result.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td>offset of binding name into array of known names</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> binding value or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-get-binding-name"></a><h3>librdf_query_results_get_binding_name ()</h3>
<pre class="programlisting">const <span class="returnvalue">char</span> *        librdf_query_results_get_binding_name
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> offset</code></em>);</pre>
<p>
Get binding name for the current result.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td>offset of binding name into array of known names</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to a shared copy of the binding name or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-get-binding-value-by-name"></a><h3>librdf_query_results_get_binding_value_by_name ()</h3>
<pre class="programlisting"><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="returnvalue">librdf_node</span></a> *       librdf_query_results_get_binding_value_by_name
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>);</pre>
<p>
Get one binding value for a given name in the current result.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>variable name</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> binding value or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-get-bindings-count"></a><h3>librdf_query_results_get_bindings_count ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_get_bindings_count
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Get the number of bound variables in the result.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>&lt;0 if failed or results exhausted</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-counted-string"></a><h3>librdf_query_results_to_counted_string ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">char</span> *     librdf_query_results_to_counted_string
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>,
                                                         <em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);</pre>
<p>
Turn a query results into a string.
</p>
<p>
The default query results format will be used if <em class="parameter"><code>format_uri</code></em> is
NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated
syntax, depending on the format.
</p>
<p>
The returned string must be freed by the caller using
<a class="link" href="redland-general.html#librdf-free-memory" title="librdf_free_memory ()"><code class="function">librdf_free_memory()</code></a>.
</p>
<p>
<em class="parameter"><code>deprecated</code></em>: Use <a class="link" href="redland-query-results.html#librdf-query-results-to-counted-string2" title="librdf_query_results_to_counted_string2 ()"><code class="function">librdf_query_results_to_counted_string2()</code></a> with extra
name and mime-type args.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length_p</code></em> :</span></p></td>
<td>Pointer to where to store length of string (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>new string value or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-counted-string2"></a><h3>librdf_query_results_to_counted_string2 ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">char</span> *     librdf_query_results_to_counted_string2
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>,
                                                         <em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);</pre>
<p>
Turn a query results into a string.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default
query results format will be used if <em class="parameter"><code>name</code></em>, <em class="parameter"><code>mime_type</code></em> and
<em class="parameter"><code>format_uri</code></em> are all NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated
syntax, depending on the format.
</p>
<p>
The returned string must be freed by the caller using
<a class="link" href="redland-general.html#librdf-free-memory" title="librdf_free_memory ()"><code class="function">librdf_free_memory()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>name of syntax to format to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>mime type of syntax to format to (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length_p</code></em> :</span></p></td>
<td>Pointer to where to store length of string (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>new string value or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-string"></a><h3>librdf_query_results_to_string ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">char</span> *     librdf_query_results_to_string      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);</pre>
<p>
Turn a query results into a string.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default
query results format will be used if <em class="parameter"><code>format_uri</code></em> is NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated
syntax, depending on the format.
</p>
<p>
The returned string must be freed by the caller using
<a class="link" href="redland-general.html#librdf-free-memory" title="librdf_free_memory ()"><code class="function">librdf_free_memory()</code></a>.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: use <a class="link" href="redland-query-results.html#librdf-query-results-to-string2" title="librdf_query_results_to_string2 ()"><code class="function">librdf_query_results_to_string2()</code></a> with extra name
and mime_type args.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>new string value or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-string2"></a><h3>librdf_query_results_to_string2 ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">char</span> *     librdf_query_results_to_string2     (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);</pre>
<p>
Turn a query results into a string.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default
query results format will be used if <em class="parameter"><code>name</code></em>, <em class="parameter"><code>mime_type</code></em> and <em class="parameter"><code>format_uri</code></em>
are all NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated
syntax, depending on the format.
</p>
<p>
The returned string must be freed by the caller using
<a class="link" href="redland-general.html#librdf-free-memory" title="librdf_free_memory ()"><code class="function">librdf_free_memory()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>format name</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>format mime type (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>new string value or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-file-handle"></a><h3>librdf_query_results_to_file_handle ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_to_file_handle (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">FILE</span> *handle</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);</pre>
<p>
Write a query results to a FILE*.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default
query results format will be used if <em class="parameter"><code>format_uri</code></em> is NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated
syntax, depending on the format.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: use <a class="link" href="redland-query-results.html#librdf-query-results-to-file-handle" title="librdf_query_results_to_file_handle ()"><code class="function">librdf_query_results_to_file_handle()</code></a> with extra
name and mime_type args.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td>file handle to write to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non 0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-file-handle2"></a><h3>librdf_query_results_to_file_handle2 ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_to_file_handle2
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><span class="type">FILE</span> *handle</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);</pre>
<p>
Write a query results to a FILE*.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default
query results format will be used if <em class="parameter"><code>name</code></em>, <em class="parameter"><code>mime_type</code></em> and <em class="parameter"><code>format_uri</code></em>
are all NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated syntax, depending
on the format.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td>file handle to write to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>result format name (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>result mime type (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non 0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-file"></a><h3>librdf_query_results_to_file ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_to_file        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);</pre>
<p>
Write a query results to a file.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default
query results format will be used if <em class="parameter"><code>format_uri</code></em> is NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated
syntax, depending on the format.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: use <a class="link" href="redland-query-results.html#librdf-query-results-to-file2" title="librdf_query_results_to_file2 ()"><code class="function">librdf_query_results_to_file2()</code></a> with extra mime_type
arg.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>filename to write to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non 0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-to-file2"></a><h3>librdf_query_results_to_file2 ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_to_file2       (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *format_uri</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);</pre>
<p>
Write a query results to a file.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default
query results format will be used if <em class="parameter"><code>name</code></em>, <em class="parameter"><code>mime_type</code></em> and <em class="parameter"><code>format_uri</code></em>
are all NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
The <em class="parameter"><code>base_uri</code></em> may be used for as the base URI the generated
syntax, depending on the format.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>filename to write to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>mime type (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format_uri</code></em> :</span></p></td>
<td>URI of syntax to format to (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>Base URI of output formatted syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non 0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-free-query-results"></a><h3>librdf_free_query_results ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                librdf_free_query_results           (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Destructor - destroy a <a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-is-bindings"></a><h3>librdf_query_results_is_bindings ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_is_bindings    (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Test if librdf_query_results is variable bindings format.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if true</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-is-boolean"></a><h3>librdf_query_results_is_boolean ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_is_boolean     (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Test if librdf_query_results is boolean format.
</p>
<p>
If this function returns true, the result can be retrieved by
<a class="link" href="redland-query-results.html#librdf-query-results-get-boolean" title="librdf_query_results_get_boolean ()"><code class="function">librdf_query_results_get_boolean()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if true</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-is-graph"></a><h3>librdf_query_results_is_graph ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_is_graph       (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Test if librdf_query_results is RDF graph format.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if true</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-is-syntax"></a><h3>librdf_query_results_is_syntax ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_is_syntax      (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Test if librdf_query_results is a syntax.
</p>
<p>
If this function returns true, the ONLY result available
from this query is a syntax that can be serialized using
one of the <span class="type">query_result_formatter</span> class methods or with
<a class="link" href="redland-query-results.html#librdf-query-results-to-counted-string" title="librdf_query_results_to_counted_string ()"><code class="function">librdf_query_results_to_counted_string()</code></a>, <a class="link" href="redland-query-results.html#librdf-query-results-to-string" title="librdf_query_results_to_string ()"><code class="function">librdf_query_results_to_string()</code></a>,
<a class="link" href="redland-query-results.html#librdf-query-results-to-file-handle" title="librdf_query_results_to_file_handle ()"><code class="function">librdf_query_results_to_file_handle()</code></a> or <a class="link" href="redland-query-results.html#librdf-query-results-to-file" title="librdf_query_results_to_file ()"><code class="function">librdf_query_results_to_file()</code></a>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if true</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-get-boolean"></a><h3>librdf_query_results_get_boolean ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_get_boolean    (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>);</pre>
<p>
Get boolean query result.
</p>
<p>
The return value is only meaningful if this is a boolean
query result - see <a class="link" href="redland-query-results.html#librdf-query-results-is-boolean" title="librdf_query_results_is_boolean ()"><code class="function">librdf_query_results_is_boolean()</code></a>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query_results</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>boolean query result - &gt;0 is true, 0 is false, &lt;0 on error or finished</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-new-query-results-formatter"></a><h3>librdf_new_query_results_formatter ()</h3>
<pre class="programlisting"><a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="returnvalue">librdf_query_results_formatter</span></a> * librdf_new_query_results_formatter
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *uri</code></em>);</pre>
<p>
Constructor - create a new librdf_query_results_formatter object by identified format.
</p>
<p>
A query results format can be named or identified by a URI, both
of which are optional.  The default query results format will be used
if <em class="parameter"><code>name</code></em> and <em class="parameter"><code>uri</code></em> are both NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: for <a class="link" href="redland-query-results.html#librdf-new-query-results-formatter2" title="librdf_new_query_results_formatter2 ()"><code class="function">librdf_new_query_results_formatter2()</code></a> with the
name, mime_type and format_uri args.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query_results</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>the query results format name (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>uri</code></em> :</span></p></td>
<td>
<a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> query results format uri (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> object or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-new-query-results-formatter-by-mime-type"></a><h3>librdf_new_query_results_formatter_by_mime_type ()</h3>
<pre class="programlisting"><a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="returnvalue">librdf_query_results_formatter</span></a> * librdf_new_query_results_formatter_by_mime_type
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>);</pre>
<p>
Constructor - create a new librdf_query_results_formatter object by mime type.
</p>
<p>
A query results format generates a syntax with a mime type which
may be requested with this constructor.
</p>
<p>
Note that there may be several formatters that generate the same
MIME Type (such as SPARQL XML results format drafts) and in thot
case the <a class="link" href="redland-query-results.html#librdf-new-query-results-formatter" title="librdf_new_query_results_formatter ()"><code class="function">librdf_new_query_results_formatter()</code></a> constructor allows
selecting of a specific one by name or URI.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: for <a class="link" href="redland-query-results.html#librdf-new-query-results-formatter2" title="librdf_new_query_results_formatter2 ()"><code class="function">librdf_new_query_results_formatter2()</code></a> with the
name, mime_type and format_uri args.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query_results</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>mime type name</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> object or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-new-query-results-formatter2"></a><h3>librdf_new_query_results_formatter2 ()</h3>
<pre class="programlisting"><a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="returnvalue">librdf_query_results_formatter</span></a> * librdf_new_query_results_formatter2
                                                        (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *uri</code></em>);</pre>
<p>
Constructor - create a new librdf_query_results_formatter object by identified format.
</p>
<p>
A query results format can be named, have a mime type, or
identified by a URI, all of which are optional.  The default query
results format will be used if <em class="parameter"><code>name</code></em>, <em class="parameter"><code>mime_type</code></em> and <em class="parameter"><code>uri</code></em> are all
NULL.
</p>
<p>
<a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> returns information on
the known query results names, labels and URIs.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query_results</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>the query results format name (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>the query results format mime type (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>uri</code></em> :</span></p></td>
<td>
<a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> query results format uri (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> object or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-free-query-results-formatter"></a><h3>librdf_free_query_results_formatter ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                librdf_free_query_results_formatter (<em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> *formatter</code></em>);</pre>
<p>
Destructor - destroy a <a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> object.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>formatter</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> object</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-formats-check"></a><h3>librdf_query_results_formats_check ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_formats_check  (<em class="parameter"><code><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a> *world</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *uri</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *mime_type</code></em>);</pre>
<p>
Check if a query results formatter exists for the requested format.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>world</code></em> :</span></p></td>
<td><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a></td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>the query results format name (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>uri</code></em> :</span></p></td>
<td>
<a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> query results format uri (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>mime type name</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if a formatter exists.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-formats-get-description"></a><h3>librdf_query_results_formats_get_description ()</h3>
<pre class="programlisting">const <span class="returnvalue">raptor_syntax_description</span> * librdf_query_results_formats_get_description
                                                        (<em class="parameter"><code><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a> *world</code></em>,
                                                         <em class="parameter"><code>unsigned <span class="type">int</span> counter</code></em>);</pre>
<p>
Get query result formats descriptive syntax information
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>world</code></em> :</span></p></td>
<td>world object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>counter</code></em> :</span></p></td>
<td>index into the list of query results formats</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>description or NULL if counter is out of range</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-formats-enumerate"></a><h3>librdf_query_results_formats_enumerate ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_formats_enumerate
                                                        (<em class="parameter"><code><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a> *world</code></em>,
                                                         <em class="parameter"><code>const unsigned <span class="type">int</span> counter</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> **name</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> **label</code></em>,
                                                         <em class="parameter"><code>const unsigned <span class="type">char</span> **uri_string</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> **mime_type</code></em>);</pre>
<p>
Get information on query result syntaxes.
</p>
<p>
All returned strings are shared and must be copied if needed to be
used dynamically.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: use <a class="link" href="redland-query-results.html#librdf-query-results-formats-get-description" title="librdf_query_results_formats_get_description ()"><code class="function">librdf_query_results_formats_get_description()</code></a> to
return more information in a static structure.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>world</code></em> :</span></p></td>
<td><a class="link" href="redland-world.html#librdf-world" title="librdf_world"><span class="type">librdf_world</span></a></td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>counter</code></em> :</span></p></td>
<td>index into the list of query result syntaxes</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>pointer to store the name of the query result syntax (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>label</code></em> :</span></p></td>
<td>pointer to store query result syntax readable label (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>uri_string</code></em> :</span></p></td>
<td>pointer to store query result syntax URI string (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mime_type</code></em> :</span></p></td>
<td>pointer to store query result syntax mime type string (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non 0 on failure of if counter is out of range</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-formatter"></a><h3>librdf_query_results_formatter</h3>
<pre class="programlisting">typedef struct librdf_query_results_formatter_s librdf_query_results_formatter;
</pre>
<p>
Redland query results formatter class.
</p>
</div>
<hr>
<div class="refsect2">
<a name="librdf-query-results-formatter-write"></a><h3>librdf_query_results_formatter_write ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 librdf_query_results_formatter_write
                                                        (<em class="parameter"><code><span class="type">raptor_iostream</span> *iostr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> *formatter</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> *query_results</code></em>,
                                                         <em class="parameter"><code><a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> *base_uri</code></em>);</pre>
<p>
Write the query results using the given formatter to an iostream
</p>
<p>
Note that after calling this method, the query results will be
empty and <a class="link" href="redland-query-results.html#librdf-query-results-finished" title="librdf_query_results_finished ()"><code class="function">librdf_query_results_finished()</code></a> will return true (non-0)
</p>
<p>
See <a class="link" href="redland-query-results.html#librdf-query-results-formats-enumerate" title="librdf_query_results_formats_enumerate ()"><code class="function">librdf_query_results_formats_enumerate()</code></a> to get the
list of syntax URIs and their description.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>iostr</code></em> :</span></p></td>
<td>
<span class="type">raptor_iostream</span> to write the query to</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>formatter</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results-formatter" title="librdf_query_results_formatter"><span class="type">librdf_query_results_formatter</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>query_results</code></em> :</span></p></td>
<td>
<a class="link" href="redland-query-results.html#librdf-query-results" title="librdf_query_results"><span class="type">librdf_query_results</span></a> query results format</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base_uri</code></em> :</span></p></td>
<td>
<a class="link" href="redland-uri.html#librdf-uri" title="librdf_uri"><span class="type">librdf_uri</span></a> base URI of the output format</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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