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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
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<title>Updates</title>
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<a href="#rasqal-section-updates.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#rasqal-section-updates.description" class="shortcut">Description</a>
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<div class="refentry">
<a name="rasqal-section-updates"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="rasqal-section-updates.top_of_page"></a>Updates</span></h2>
<p>Updates — Graph update operations</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="rasqal-section-updates.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">                    <a class="link" href="rasqal-section-updates.html#rasqal-update-operation" title="rasqal_update_operation">rasqal_update_operation</a>;
enum                <a class="link" href="rasqal-section-updates.html#rasqal-update-type" title="enum rasqal_update_type">rasqal_update_type</a>;
enum                <a class="link" href="rasqal-section-updates.html#rasqal-update-flags" title="enum rasqal_update_flags">rasqal_update_flags</a>;
enum                <a class="link" href="rasqal-section-updates.html#rasqal-update-graph-applies" title="enum rasqal_update_graph_applies">rasqal_update_graph_applies</a>;
</pre>
</div>
<div class="refsect1">
<a name="rasqal-section-updates.description"></a><h2>Description</h2>
<p>
This class provides a object to record a graph update operation
with adding and/or removing triples, using a templated insert/delete
with optional where clause.  It is designed to be able to record
the SPARQL 1.1 (Draft) update format, and is a work in progress
as of February 2010.
</p>
</div>
<div class="refsect1">
<a name="rasqal-section-updates.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="rasqal-update-operation"></a><h3>rasqal_update_operation</h3>
<pre class="programlisting">typedef struct {
  rasqal_update_type type;

  raptor_uri* graph_uri;

  raptor_uri* document_uri;

  raptor_sequence* insert_templates;

  raptor_sequence* delete_templates;

  rasqal_graph_pattern* where;

  int flags;

  rasqal_update_graph_applies applies;
} rasqal_update_operation;
</pre>
<p>
Update operation - changing the dataset
</p>
<p>
For LOAD and CLEAR if <em class="parameter"><code>applies</code></em> is set (not 0) then the operation
applies to just those <code class="function">graph()</code>, otherwise it applies to the <em class="parameter"><code>graph_uri</code></em>.
</p>
<p>
For ADD, MOVE and COPY the source graph is stored in <em class="parameter"><code>graph_uri</code></em>
field and the destination graph in the <em class="parameter"><code>document_uri</code></em> field.  The
field names have no meaning in this case since both values are
always present, always graphs and a NULL value signifies the
default graph.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="rasqal-section-updates.html#rasqal-update-type" title="enum rasqal_update_type"><span class="type">rasqal_update_type</span></a> <em class="structfield"><code><a name="rasqal-update-operation.type"></a>type</code></em>;</span></p></td>
<td>type of update</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">raptor_uri</span> *<em class="structfield"><code><a name="rasqal-update-operation.graph-uri"></a>graph_uri</code></em>;</span></p></td>
<td>optional graph URI (clear, drop, load, with ... delete, insert); source graph (add, move, copy)</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">raptor_uri</span> *<em class="structfield"><code><a name="rasqal-update-operation.document-uri"></a>document_uri</code></em>;</span></p></td>
<td>optional document URI (load); destination graph (add, move, copy)</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">raptor_sequence</span> *<em class="structfield"><code><a name="rasqal-update-operation.insert-templates"></a>insert_templates</code></em>;</span></p></td>
<td>optional sequence of <a class="link" href="rasqal-section-triple.html#rasqal-triple" title="rasqal_triple"><span class="type">rasqal_triple</span></a> to insert. Data triples if <em class="parameter"><code>flags</code></em> is <a class="link" href="rasqal-section-updates.html#RASQAL-UPDATE-FLAGS-DATA:CAPS"><span class="type">RASQAL_UPDATE_FLAGS_DATA</span></a> set, templates otherwise.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">raptor_sequence</span> *<em class="structfield"><code><a name="rasqal-update-operation.delete-templates"></a>delete_templates</code></em>;</span></p></td>
<td>optional sequence of <a class="link" href="rasqal-section-triple.html#rasqal-triple" title="rasqal_triple"><span class="type">rasqal_triple</span></a> templates to delete</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="rasqal-section-graph-pattern.html#rasqal-graph-pattern" title="rasqal_graph_pattern"><span class="type">rasqal_graph_pattern</span></a> *<em class="structfield"><code><a name="rasqal-update-operation.where"></a>where</code></em>;</span></p></td>
<td>optional where template (insert/delete)</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">int</span> <em class="structfield"><code><a name="rasqal-update-operation.flags"></a>flags</code></em>;</span></p></td>
<td>update flags - bit-or of flags defined in <a class="link" href="rasqal-section-updates.html#rasqal-update-flags" title="enum rasqal_update_flags"><span class="type">rasqal_update_flags</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="rasqal-section-updates.html#rasqal-update-graph-applies" title="enum rasqal_update_graph_applies"><span class="type">rasqal_update_graph_applies</span></a> <em class="structfield"><code><a name="rasqal-update-operation.applies"></a>applies</code></em>;</span></p></td>
<td>the graph(s) that the update operation applies to, or <em class="parameter"><code>graph_uri</code></em> if <a class="link" href="rasqal-section-updates.html#RASQAL-UPDATE-GRAPH-ONE:CAPS"><span class="type">RASQAL_UPDATE_GRAPH_ONE</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rasqal-update-type"></a><h3>enum rasqal_update_type</h3>
<pre class="programlisting">typedef enum {
  /* internal */
  RASQAL_UPDATE_TYPE_UNKNOWN   = 0,
  RASQAL_UPDATE_TYPE_CLEAR     = 1,
  RASQAL_UPDATE_TYPE_CREATE    = 2,
  RASQAL_UPDATE_TYPE_DROP      = 3,
  RASQAL_UPDATE_TYPE_LOAD      = 4,
  RASQAL_UPDATE_TYPE_UPDATE    = 5,
  RASQAL_UPDATE_TYPE_ADD       = 6,
  RASQAL_UPDATE_TYPE_MOVE      = 7,
  RASQAL_UPDATE_TYPE_COPY      = 8,

  /* internal */
  RASQAL_UPDATE_TYPE_LAST = RASQAL_UPDATE_TYPE_COPY
} rasqal_update_type;
</pre>
<p>
Update type being performed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-UNKNOWN:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_UNKNOWN</code></span></p></td>
<td>Internal
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-CLEAR:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_CLEAR</code></span></p></td>
<td>Clear graph.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-CREATE:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_CREATE</code></span></p></td>
<td>Create graph.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-DROP:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_DROP</code></span></p></td>
<td>Drop graph.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-LOAD:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_LOAD</code></span></p></td>
<td>Load graph.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-UPDATE:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_UPDATE</code></span></p></td>
<td>Insert or Delete graph or triples.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-ADD:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_ADD</code></span></p></td>
<td>Add graph to another graph.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-MOVE:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_MOVE</code></span></p></td>
<td>Move graph to another grpah.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-COPY:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_COPY</code></span></p></td>
<td>Copy graph to another graph.
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-TYPE-LAST:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_TYPE_LAST</code></span></p></td>
<td>Internal
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rasqal-update-flags"></a><h3>enum rasqal_update_flags</h3>
<pre class="programlisting">typedef enum {
  RASQAL_UPDATE_FLAGS_SILENT = 1,
  RASQAL_UPDATE_FLAGS_DATA = 2
} rasqal_update_flags;
</pre>
<p>
Bitflags for graph update operations
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="RASQAL-UPDATE-FLAGS-SILENT:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_FLAGS_SILENT</code></span></p></td>
<td>the update operation should be silent
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-FLAGS-DATA:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_FLAGS_DATA</code></span></p></td>
<td>the update operation is triple data not templates
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rasqal-update-graph-applies"></a><h3>enum rasqal_update_graph_applies</h3>
<pre class="programlisting">typedef enum {
  RASQAL_UPDATE_GRAPH_ONE = 0,
  RASQAL_UPDATE_GRAPH_DEFAULT = 1,
  RASQAL_UPDATE_GRAPH_NAMED = 2,
  RASQAL_UPDATE_GRAPH_ALL = 3
} rasqal_update_graph_applies;
</pre>
<p>
The graph(s) that the update operation applies to.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="RASQAL-UPDATE-GRAPH-ONE:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_GRAPH_ONE</code></span></p></td>
<td>the update operation applies to 1 graph
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-GRAPH-DEFAULT:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_GRAPH_DEFAULT</code></span></p></td>
<td>the update operation applies to the default graph
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-GRAPH-NAMED:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_GRAPH_NAMED</code></span></p></td>
<td>the update operation applies to all named graphs
</td>
</tr>
<tr>
<td><p><a name="RASQAL-UPDATE-GRAPH-ALL:CAPS"></a><span class="term"><code class="literal">RASQAL_UPDATE_GRAPH_ALL</code></span></p></td>
<td>the update operation applies ALL graphs
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
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