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<div class="title">wxSQLite3AggregateFunction Class Reference</div> </div>
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<!-- doxytag: class="wxSQLite3AggregateFunction" -->
<p>Interface for user defined aggregate functions.
<a href="classwx_s_q_lite3_aggregate_function.html#details">More...</a></p>
<p><code>#include <wxsqlite3.h></code></p>
<p><a href="classwx_s_q_lite3_aggregate_function-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_s_q_lite3_aggregate_function.html#acc510960bb5f2e45f929411754dcb4b9">wxSQLite3AggregateFunction</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#acc510960bb5f2e45f929411754dcb4b9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_s_q_lite3_aggregate_function.html#ae02c6cbfc5eea336b021da5bbe124039">~wxSQLite3AggregateFunction</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Virtual destructor. <a href="#ae02c6cbfc5eea336b021da5bbe124039"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_s_q_lite3_aggregate_function.html#a4eff9883bdce08756ae0c2c93fa2764b">Aggregate</a> (<a class="el" href="classwx_s_q_lite3_function_context.html">wxSQLite3FunctionContext</a> &ctx)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Execute the aggregate of the function. <a href="#a4eff9883bdce08756ae0c2c93fa2764b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_s_q_lite3_aggregate_function.html#ab831e5f8016c04206c6b3b565ea9befb">Finalize</a> (<a class="el" href="classwx_s_q_lite3_function_context.html">wxSQLite3FunctionContext</a> &ctx)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Prepare the result of the aggregate function. <a href="#ab831e5f8016c04206c6b3b565ea9befb"></a><br/></td></tr>
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Friends</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_s_q_lite3_aggregate_function.html#a2270b08f82b9fa4544d09b651170ff12">wxSQLite3FunctionContext</a></td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Interface for user defined aggregate functions. </p>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="acc510960bb5f2e45f929411754dcb4b9"></a><!-- doxytag: member="wxSQLite3AggregateFunction::wxSQLite3AggregateFunction" ref="acc510960bb5f2e45f929411754dcb4b9" args="()" -->
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<td class="memname">wxSQLite3AggregateFunction::wxSQLite3AggregateFunction </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [inline]</code></td>
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<p>Constructor. </p>
</div>
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<a class="anchor" id="ae02c6cbfc5eea336b021da5bbe124039"></a><!-- doxytag: member="wxSQLite3AggregateFunction::~wxSQLite3AggregateFunction" ref="ae02c6cbfc5eea336b021da5bbe124039" args="()" -->
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<td class="memname">virtual wxSQLite3AggregateFunction::~wxSQLite3AggregateFunction </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [inline, virtual]</code></td>
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<p>Virtual destructor. </p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a4eff9883bdce08756ae0c2c93fa2764b"></a><!-- doxytag: member="wxSQLite3AggregateFunction::Aggregate" ref="a4eff9883bdce08756ae0c2c93fa2764b" args="(wxSQLite3FunctionContext &ctx)=0" -->
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<td class="memname">virtual void wxSQLite3AggregateFunction::Aggregate </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classwx_s_q_lite3_function_context.html">wxSQLite3FunctionContext</a> & </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td><code> [pure virtual]</code></td>
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<p>Execute the aggregate of the function. </p>
<p>This method is invoked for each row of the result set of the query using the aggregate function. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>function context which can be used to access arguments and result value </td></tr>
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</dd>
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<a class="anchor" id="ab831e5f8016c04206c6b3b565ea9befb"></a><!-- doxytag: member="wxSQLite3AggregateFunction::Finalize" ref="ab831e5f8016c04206c6b3b565ea9befb" args="(wxSQLite3FunctionContext &ctx)=0" -->
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<td class="memname">virtual void wxSQLite3AggregateFunction::Finalize </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classwx_s_q_lite3_function_context.html">wxSQLite3FunctionContext</a> & </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td><code> [pure virtual]</code></td>
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<p>Prepare the result of the aggregate function. </p>
<p>This method is invoked after all rows of the result set of the query using the aggregate function have been processed. Usually the final result is calculated and returned in this method. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>function context which can be used to access arguments and result value </td></tr>
</table>
</dd>
</dl>
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<hr/><h2>Friends And Related Function Documentation</h2>
<a class="anchor" id="a2270b08f82b9fa4544d09b651170ff12"></a><!-- doxytag: member="wxSQLite3AggregateFunction::wxSQLite3FunctionContext" ref="a2270b08f82b9fa4544d09b651170ff12" args="" -->
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<td class="memname">friend class <a class="el" href="classwx_s_q_lite3_function_context.html">wxSQLite3FunctionContext</a><code> [friend]</code></td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="wxsqlite3_8h.html">wxsqlite3.h</a></li>
</ul>
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