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<h2><span class="refentrytitle"><a name="redland-statement.top_of_page"></a>RDF Triple (librdf_statement)</span></h2>
<p>RDF Triple (librdf_statement) — RDF Triple.</p>
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<a name="redland-statement.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">typedef <a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement">librdf_statement</a>;
enum <a class="link" href="redland-statement.html#librdf-statement-part" title="enum librdf_statement_part">librdf_statement_part</a>;
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * <a class="link" href="redland-statement.html#librdf-new-statement" title="librdf_new_statement ()">librdf_new_statement</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>);
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * <a class="link" href="redland-statement.html#librdf-new-statement-from-statement" title="librdf_new_statement_from_statement ()">librdf_new_statement_from_statement</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * <a class="link" href="redland-statement.html#librdf-new-statement-from-statement2" title="librdf_new_statement_from_statement2 ()">librdf_new_statement_from_statement2</a>
(<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * <a class="link" href="redland-statement.html#librdf-new-statement-from-nodes" title="librdf_new_statement_from_nodes ()">librdf_new_statement_from_nodes</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><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> *subject</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> *predicate</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> *object</code></em>);
<span class="returnvalue">void</span> <a class="link" href="redland-statement.html#librdf-statement-init" title="librdf_statement_init ()">librdf_statement_init</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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<span class="returnvalue">void</span> <a class="link" href="redland-statement.html#librdf-statement-clear" title="librdf_statement_clear ()">librdf_statement_clear</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<span class="returnvalue">void</span> <a class="link" href="redland-statement.html#librdf-free-statement" title="librdf_free_statement ()">librdf_free_statement</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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-statement.html#librdf-statement-get-subject" title="librdf_statement_get_subject ()">librdf_statement_get_subject</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<span class="returnvalue">void</span> <a class="link" href="redland-statement.html#librdf-statement-set-subject" title="librdf_statement_set_subject ()">librdf_statement_set_subject</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *node</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-statement.html#librdf-statement-get-predicate" title="librdf_statement_get_predicate ()">librdf_statement_get_predicate</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<span class="returnvalue">void</span> <a class="link" href="redland-statement.html#librdf-statement-set-predicate" title="librdf_statement_set_predicate ()">librdf_statement_set_predicate</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *node</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-statement.html#librdf-statement-get-object" title="librdf_statement_get_object ()">librdf_statement_get_object</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<span class="returnvalue">void</span> <a class="link" href="redland-statement.html#librdf-statement-set-object" title="librdf_statement_set_object ()">librdf_statement_set_object</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *node</code></em>);
<span class="returnvalue">int</span> <a class="link" href="redland-statement.html#librdf-statement-is-complete" title="librdf_statement_is_complete ()">librdf_statement_is_complete</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
unsigned <span class="returnvalue">char</span> * <a class="link" href="redland-statement.html#librdf-statement-to-string" title="librdf_statement_to_string ()">librdf_statement_to_string</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);
<span class="returnvalue">void</span> <a class="link" href="redland-statement.html#librdf-statement-print" title="librdf_statement_print ()">librdf_statement_print</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code><span class="type">FILE</span> *fh</code></em>);
<span class="returnvalue">int</span> <a class="link" href="redland-statement.html#librdf-statement-equals" title="librdf_statement_equals ()">librdf_statement_equals</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement1</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement2</code></em>);
<span class="returnvalue">int</span> <a class="link" href="redland-statement.html#librdf-statement-match" title="librdf_statement_match ()">librdf_statement_match</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *partial_statement</code></em>);
<span class="returnvalue">size_t</span> <a class="link" href="redland-statement.html#librdf-statement-encode" title="librdf_statement_encode ()">librdf_statement_encode</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);
<span class="returnvalue">size_t</span> <a class="link" href="redland-statement.html#librdf-statement-encode2" title="librdf_statement_encode2 ()">librdf_statement_encode2</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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);
<span class="returnvalue">size_t</span> <a class="link" href="redland-statement.html#librdf-statement-encode-parts" title="librdf_statement_encode_parts ()">librdf_statement_encode_parts</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement-part" title="enum librdf_statement_part"><span class="type">librdf_statement_part</span></a> fields</code></em>);
<span class="returnvalue">size_t</span> <a class="link" href="redland-statement.html#librdf-statement-encode-parts2" title="librdf_statement_encode_parts2 ()">librdf_statement_encode_parts2</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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement-part" title="enum librdf_statement_part"><span class="type">librdf_statement_part</span></a> fields</code></em>);
<span class="returnvalue">size_t</span> <a class="link" href="redland-statement.html#librdf-statement-decode" title="librdf_statement_decode ()">librdf_statement_decode</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);
<span class="returnvalue">size_t</span> <a class="link" href="redland-statement.html#librdf-statement-decode2" title="librdf_statement_decode2 ()">librdf_statement_decode2</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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> **context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);
<span class="returnvalue">size_t</span> <a class="link" href="redland-statement.html#librdf-statement-decode-parts" title="librdf_statement_decode_parts ()">librdf_statement_decode_parts</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> **context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);
<span class="returnvalue">int</span> <a class="link" href="redland-statement.html#librdf-statement-write" title="librdf_statement_write ()">librdf_statement_write</a> (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code><span class="type">raptor_iostream</span> *iostr</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="redland-statement.description"></a><h2>Description</h2>
<p>
An object representing an RDF Triple of three RDF terms (<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a>).
Triples can be created, accessed, destroyed and en/decoded into a binary
form for use in storage.
</p>
</div>
<div class="refsect1">
<a name="redland-statement.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="librdf-statement"></a><h3>librdf_statement</h3>
<pre class="programlisting">typedef raptor_statement librdf_statement;
</pre>
<p>
Redland statement class.
</p>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-part"></a><h3>enum librdf_statement_part</h3>
<pre class="programlisting">typedef enum {
LIBRDF_STATEMENT_SUBJECT = 1 << 0,
LIBRDF_STATEMENT_PREDICATE = 1 << 1,
LIBRDF_STATEMENT_OBJECT = 1 << 2,
/* must be a combination of all of the above */
LIBRDF_STATEMENT_ALL = (LIBRDF_STATEMENT_SUBJECT|
LIBRDF_STATEMENT_PREDICATE|
LIBRDF_STATEMENT_OBJECT)
} librdf_statement_part;
</pre>
<p>
Flags that are or-ed to indicate statement parts.
</p>
<p>
Used in fields arguments to methods such as the public
<a class="link" href="redland-statement.html#librdf-statement-encode-parts" title="librdf_statement_encode_parts ()"><code class="function">librdf_statement_encode_parts()</code></a> <a class="link" href="redland-statement.html#librdf-statement-decode-parts" title="librdf_statement_decode_parts ()"><code class="function">librdf_statement_decode_parts()</code></a>
<a class="link" href="redland-stream.html#librdf-new-stream-from-node-iterator" title="librdf_new_stream_from_node_iterator ()"><code class="function">librdf_new_stream_from_node_iterator()</code></a>.
</p>
<div class="variablelist"><table border="0">
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<td><p><a name="LIBRDF-STATEMENT-SUBJECT:CAPS"></a><span class="term"><code class="literal">LIBRDF_STATEMENT_SUBJECT</code></span></p></td>
<td>Subject of a statement.
</td>
</tr>
<tr>
<td><p><a name="LIBRDF-STATEMENT-PREDICATE:CAPS"></a><span class="term"><code class="literal">LIBRDF_STATEMENT_PREDICATE</code></span></p></td>
<td>Predicate of a statement.
</td>
</tr>
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<td><p><a name="LIBRDF-STATEMENT-OBJECT:CAPS"></a><span class="term"><code class="literal">LIBRDF_STATEMENT_OBJECT</code></span></p></td>
<td>Object of a statement.
</td>
</tr>
<tr>
<td><p><a name="LIBRDF-STATEMENT-ALL:CAPS"></a><span class="term"><code class="literal">LIBRDF_STATEMENT_ALL</code></span></p></td>
<td>All parts of a statement.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-new-statement"></a><h3>librdf_new_statement ()</h3>
<pre class="programlisting"><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * librdf_new_statement (<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>);</pre>
<p>
Constructor - create a new empty <a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a>.
</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>redland world object</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-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-new-statement-from-statement"></a><h3>librdf_new_statement_from_statement ()</h3>
<pre class="programlisting"><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * librdf_new_statement_from_statement (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Copy constructor - create a new librdf_statement from an existing librdf_statement.
Creates a deep copy - changes to original statement nodes are not reflected in the copy.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> to copy</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-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> with copy or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-new-statement-from-statement2"></a><h3>librdf_new_statement_from_statement2 ()</h3>
<pre class="programlisting"><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * librdf_new_statement_from_statement2
(<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Copy constructor - create a new librdf_statement from an existing librdf_statement.
Creates a shallow copy - changes to original statement nodes are reflected in the copy.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> to copy</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-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> with copy or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-new-statement-from-nodes"></a><h3>librdf_new_statement_from_nodes ()</h3>
<pre class="programlisting"><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="returnvalue">librdf_statement</span></a> * librdf_new_statement_from_nodes (<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><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> *subject</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> *predicate</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> *object</code></em>);</pre>
<p>
Constructor - create a new <a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> from existing <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> objects.
</p>
<p>
The node objects become owned by the new statement (or freed on error).
</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>redland world object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>subject</code></em> :</span></p></td>
<td><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a></td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>predicate</code></em> :</span></p></td>
<td><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a></td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>object</code></em> :</span></p></td>
<td><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a></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-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> with copy or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-init"></a><h3>librdf_statement_init ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> librdf_statement_init (<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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Initialise a statically declared librdf_statement.
</p>
<p>
This MUST be called on a statically declared librdf_statement
to initialise it properly. It is the responsibility of the
user of the statically allocated librdf_statement to deal
with deallocation of any statement parts (subject, predicate, object).
</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>redland world object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-clear"></a><h3>librdf_statement_clear ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> librdf_statement_clear (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Empty a librdf_statement of nodes.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-free-statement"></a><h3>librdf_free_statement ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> librdf_free_statement (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Destructor - destroy a <a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-get-subject"></a><h3>librdf_statement_get_subject ()</h3>
<pre class="programlisting"><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="returnvalue">librdf_node</span></a> * librdf_statement_get_subject (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Get the statement subject.
</p>
<p>
This method returns a SHARED pointer to the subject which must
be copied by the caller if needed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to the <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> of the statement subject -</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-set-subject"></a><h3>librdf_statement_set_subject ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> librdf_statement_set_subject (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *node</code></em>);</pre>
<p>
Set the statement subject.
</p>
<p>
The subject passed in becomes owned by
the statement object and must not be used by the caller after this call.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>node</code></em> :</span></p></td>
<td>
<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> of subject</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-get-predicate"></a><h3>librdf_statement_get_predicate ()</h3>
<pre class="programlisting"><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="returnvalue">librdf_node</span></a> * librdf_statement_get_predicate (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Get the statement predicate.
</p>
<p>
This method returns a SHARED pointer to the predicate which must
be copied by the caller if needed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to the <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> of the statement predicate -</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-set-predicate"></a><h3>librdf_statement_set_predicate ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> librdf_statement_set_predicate (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *node</code></em>);</pre>
<p>
Set the statement predicate.
</p>
<p>
The predicate passed in becomes owned by
the statement object and must not be used by the caller after this call.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>node</code></em> :</span></p></td>
<td>
<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> of predicate</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-get-object"></a><h3>librdf_statement_get_object ()</h3>
<pre class="programlisting"><a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="returnvalue">librdf_node</span></a> * librdf_statement_get_object (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Get the statement object.
</p>
<p>
This method returns a SHARED pointer to the object which must
be copied by the caller if needed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to the <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> of the statement object -</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-set-object"></a><h3>librdf_statement_set_object ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> librdf_statement_set_object (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *node</code></em>);</pre>
<p>
Set the statement object.
</p>
<p>
The object passed in becomes owned by
the statement object and must not be used by the caller after this call.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>node</code></em> :</span></p></td>
<td>
<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> of object</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-is-complete"></a><h3>librdf_statement_is_complete ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> librdf_statement_is_complete (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Check if statement is a complete and legal RDF triple.
</p>
<p>
Checks that all subject, predicate, object fields are present
and they have the allowed node types.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>
<a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</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 the statement is complete and legal</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-to-string"></a><h3>librdf_statement_to_string ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">char</span> * librdf_statement_to_string (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>);</pre>
<p>
Format the librdf_statement as a string.
</p>
<p>
Formats the statement as a newly allocate string that must be freed by
the caller.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: Use <a class="link" href="redland-statement.html#librdf-statement-write" title="librdf_statement_write ()"><code class="function">librdf_statement_write()</code></a> to write to
<span class="type">raptor_iostream</span> which can be made to write to a string. Use a
<a class="link" href="redland-serializer.html#librdf-serializer" title="librdf_serializer"><span class="type">librdf_serializer</span></a> to write proper syntax formats.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>the statement</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the string or NULL on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-print"></a><h3>librdf_statement_print ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> librdf_statement_print (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code><span class="type">FILE</span> *fh</code></em>);</pre>
<p>
Pretty print the statement to a file descriptor.
</p>
<p>
This method is for debugging and the format of the output should
not be relied on.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>the statement</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fh</code></em> :</span></p></td>
<td>file handle</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-equals"></a><h3>librdf_statement_equals ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> librdf_statement_equals (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement1</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement2</code></em>);</pre>
<p>
Check if two statements are equal.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement1</code></em> :</span></p></td>
<td>first <a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement2</code></em> :</span></p></td>
<td>second <a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non 0 if statements are equal</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-match"></a><h3>librdf_statement_match ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> librdf_statement_match (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *partial_statement</code></em>);</pre>
<p>
Match a statement against a 'partial' statement.
</p>
<p>
A partial statement is where some parts of the statement -
subject, predicate or object can be empty (NULL).
Empty parts match against any value, parts with values
must match exactly. Node matching is done via <a class="link" href="redland-node.html#librdf-node-equals" title="librdf_node_equals ()"><code class="function">librdf_node_equals()</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>statement</code></em> :</span></p></td>
<td>statement</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>partial_statement</code></em> :</span></p></td>
<td>statement with possible empty parts</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non 0 on match</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-encode"></a><h3>librdf_statement_encode ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span> librdf_statement_encode (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);</pre>
<p>
Serialise a statement into a buffer.
</p>
<p>
Encodes the given statement in the buffer, which must be of sufficient
size. If buffer is NULL, no work is done but the size of buffer
required is returned.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: Use <a class="link" href="redland-statement.html#librdf-statement-encode2" title="librdf_statement_encode2 ()"><code class="function">librdf_statement_encode2()</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>statement</code></em> :</span></p></td>
<td>the statement to serialise</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer to use</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>buffer size</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes written or 0 on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-encode2"></a><h3>librdf_statement_encode2 ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span> librdf_statement_encode2 (<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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);</pre>
<p>
Serialise a statement into a buffer.
</p>
<p>
Encodes the given statement in the buffer, which must be of sufficient
size. If buffer is NULL, no work is done but the size of buffer
required is returned.
</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>redland world</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>the statement to serialise</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer to use</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>buffer size</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes written or 0 on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-encode-parts"></a><h3>librdf_statement_encode_parts ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span> librdf_statement_encode_parts (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement-part" title="enum librdf_statement_part"><span class="type">librdf_statement_part</span></a> fields</code></em>);</pre>
<p>
Serialise parts of a statement into a buffer.
</p>
<p>
Encodes the given statement in the buffer, which must be of sufficient
size. If buffer is NULL, no work is done but the size of buffer
required is returned.
</p>
<p>
The fields values are or-ed combinations of:
<a class="link" href="redland-statement.html#LIBRDF-STATEMENT-SUBJECT:CAPS"><span class="type">LIBRDF_STATEMENT_SUBJECT</span></a> <a class="link" href="redland-statement.html#LIBRDF-STATEMENT-PREDICATE:CAPS"><span class="type">LIBRDF_STATEMENT_PREDICATE</span></a>
<a class="link" href="redland-statement.html#LIBRDF-STATEMENT-OBJECT:CAPS"><span class="type">LIBRDF_STATEMENT_OBJECT</span></a>
or <a class="link" href="redland-statement.html#LIBRDF-STATEMENT-ALL:CAPS"><span class="type">LIBRDF_STATEMENT_ALL</span></a> for subject,prdicate,object fields
</p>
<p>
If context_node is given, it is encoded also
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: This will no longer be a public API
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>statement to serialise</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>context_node</code></em> :</span></p></td>
<td>
<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> context node (can be NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer to use</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>buffer size</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fields</code></em> :</span></p></td>
<td>fields to encode</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes written or 0 on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-encode-parts2"></a><h3>librdf_statement_encode_parts2 ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span> librdf_statement_encode_parts2 (<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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> *context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>,
<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement-part" title="enum librdf_statement_part"><span class="type">librdf_statement_part</span></a> fields</code></em>);</pre>
<p>
Serialise parts of a statement into a buffer.
</p>
<p>
Encodes the given statement in the buffer, which must be of sufficient
size. If buffer is NULL, no work is done but the size of buffer
required is returned.
</p>
<p>
The fields values are or-ed combinations of:
<a class="link" href="redland-statement.html#LIBRDF-STATEMENT-SUBJECT:CAPS"><span class="type">LIBRDF_STATEMENT_SUBJECT</span></a> <a class="link" href="redland-statement.html#LIBRDF-STATEMENT-PREDICATE:CAPS"><span class="type">LIBRDF_STATEMENT_PREDICATE</span></a>
<a class="link" href="redland-statement.html#LIBRDF-STATEMENT-OBJECT:CAPS"><span class="type">LIBRDF_STATEMENT_OBJECT</span></a>
or <a class="link" href="redland-statement.html#LIBRDF-STATEMENT-ALL:CAPS"><span class="type">LIBRDF_STATEMENT_ALL</span></a> for subject,prdicate,object fields
</p>
<p>
If context_node is given, it is encoded also
</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>redland world object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>statement to serialise</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>context_node</code></em> :</span></p></td>
<td>
<a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> context node (can be NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer to use</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>buffer size</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fields</code></em> :</span></p></td>
<td>fields to encode</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes written or 0 on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-decode"></a><h3>librdf_statement_decode ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span> librdf_statement_decode (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);</pre>
<p>
Decodes a statement from a buffer. (ALWAYS FAILS)
</p>
<p>
Used to decode the serialised statement as created by
<a class="link" href="redland-statement.html#librdf-statement-encode" title="librdf_statement_encode ()"><code class="function">librdf_statement_encode()</code></a> from the given buffer.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: Replaced by <a class="link" href="redland-statement.html#librdf-statement-decode2" title="librdf_statement_decode2 ()"><code class="function">librdf_statement_decode2()</code></a> which works.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>the statement to deserialise into</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer to use</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>buffer size</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>0 signifying failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-decode2"></a><h3>librdf_statement_decode2 ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span> librdf_statement_decode2 (<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><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> **context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);</pre>
<p>
Decodes a statement + context node from a buffer.
</p>
<p>
Decodes the serialised statement (as created by <a class="link" href="redland-statement.html#librdf-statement-encode" title="librdf_statement_encode ()"><code class="function">librdf_statement_encode()</code></a> )
from the given buffer. If a context node is found and context_node is
not NULL, a pointer to the new <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> is stored in *context_node.
</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>redland world</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>the statement to deserialise into</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>context_node</code></em> :</span></p></td>
<td>pointer to <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> context_node to deserialise into</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer to use</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>buffer size</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>number of bytes used or 0 on failure (bad encoding, allocation failure)</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-decode-parts"></a><h3>librdf_statement_decode_parts ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span> librdf_statement_decode_parts (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</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> **context_node</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);</pre>
<p>
Decodes a statement + context node from a buffer. (ALWAYS FAILS)
</p>
<p>
Used to decode the serialised statement as created by
<a class="link" href="redland-statement.html#librdf-statement-encode" title="librdf_statement_encode ()"><code class="function">librdf_statement_encode()</code></a> from the given buffer.
</p>
<p>
<em class="parameter"><code>Deprecated</code></em>: Replaced by <a class="link" href="redland-statement.html#librdf-statement-decode2" title="librdf_statement_decode2 ()"><code class="function">librdf_statement_decode2()</code></a> which works.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>the statement to deserialise into</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>context_node</code></em> :</span></p></td>
<td>pointer to <a class="link" href="redland-node.html#librdf-node" title="librdf_node"><span class="type">librdf_node</span></a> context_node to deserialise into</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer to use</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>buffer size</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>0 signifying failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="librdf-statement-write"></a><h3>librdf_statement_write ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> librdf_statement_write (<em class="parameter"><code><a class="link" href="redland-statement.html#librdf-statement" title="librdf_statement"><span class="type">librdf_statement</span></a> *statement</code></em>,
<em class="parameter"><code><span class="type">raptor_iostream</span> *iostr</code></em>);</pre>
<p>
Write the statement to an iostream
</p>
<p>
This method is for debugging and the format of the output should
not be relied on.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>statement</code></em> :</span></p></td>
<td>the statement</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>iostr</code></em> :</span></p></td>
<td>raptor iostream to write to</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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