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<title>Apache log4cxx: TriggeringPolicy Class Reference</title>
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<div id="projectname">Apache log4cxx <span id="projectnumber">Version 0.10.0</span></div>
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<h1>TriggeringPolicy Class Reference</h1> </div>
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<!-- doxytag: class="log4cxx::rolling::TriggeringPolicy" --><!-- doxytag: inherits="log4cxx::spi::OptionHandler,log4cxx::helpers::ObjectImpl" -->
<p>A <code><a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html" title="A TriggeringPolicy controls the conditions under which rollover occurs.">TriggeringPolicy</a></code> controls the conditions under which rollover occurs.
<a href="#_details">More...</a></p>
<p>Inherits <a class="el" href="classlog4cxx_1_1spi_1_1_option_handler.html">log4cxx::spi::OptionHandler</a>, and <a class="el" href="classlog4cxx_1_1helpers_1_1_object_impl.html">log4cxx::helpers::ObjectImpl</a>.</p>
<p>Inherited by <a class="el" href="classlog4cxx_1_1rolling_1_1_filter_based_triggering_policy.html">FilterBasedTriggeringPolicy</a>, <a class="el" href="classlog4cxx_1_1rolling_1_1_manual_triggering_policy.html">ManualTriggeringPolicy</a>, <a class="el" href="classlog4cxx_1_1rolling_1_1_size_based_triggering_policy.html">SizeBasedTriggeringPolicy</a>, and <a class="el" href="classlog4cxx_1_1rolling_1_1_time_based_rolling_policy.html">TimeBasedRollingPolicy</a>.</p>
<p><a href="classlog4cxx_1_1rolling_1_1_triggering_policy-members.html">List of all members.</a></p>
<table class="memberdecls">
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Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html#a2a10a93bd44a9b87f3d7356c1d3aea68">~TriggeringPolicy</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html#a0198815940c2715c84b0e04828cf8dfa">addRef</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html#a55c31efee1904916b999395fa4d46a24">releaseRef</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html#aa5300801d20e51d71952b221872458ec">isTriggeringEvent</a> (<a class="el" href="classlog4cxx_1_1_appender.html">Appender</a> *appender, const <a class="el" href="classlog4cxx_1_1helpers_1_1_object_ptr_t.html">log4cxx::spi::LoggingEventPtr</a> &event, const <a class="el" href="namespacelog4cxx.html#ad7ec98d27bca7666e23f27dd1fb181c8">LogString</a> &filename, size_t fileLength)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Determines if a rollover may be appropriate at this time. <a href="#aa5300801d20e51d71952b221872458ec"></a><br/></td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A <code><a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html" title="A TriggeringPolicy controls the conditions under which rollover occurs.">TriggeringPolicy</a></code> controls the conditions under which rollover occurs. </p>
<p>Such conditions include time of day, file size, an external event or a combination thereof. </p>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a2a10a93bd44a9b87f3d7356c1d3aea68"></a><!-- doxytag: member="log4cxx::rolling::TriggeringPolicy::~TriggeringPolicy" ref="a2a10a93bd44a9b87f3d7356c1d3aea68" args="()" -->
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<td class="memname">virtual ~<a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html">TriggeringPolicy</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [virtual]</code></td>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a0198815940c2715c84b0e04828cf8dfa"></a><!-- doxytag: member="log4cxx::rolling::TriggeringPolicy::addRef" ref="a0198815940c2715c84b0e04828cf8dfa" args="() const " -->
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<td class="memname">void addRef </td>
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<td> const<code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="classlog4cxx_1_1helpers_1_1_object_impl.html#a0198815940c2715c84b0e04828cf8dfa">ObjectImpl</a>.</p>
<p>Reimplemented in <a class="el" href="classlog4cxx_1_1rolling_1_1_time_based_rolling_policy.html#a0198815940c2715c84b0e04828cf8dfa">TimeBasedRollingPolicy</a>.</p>
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<a class="anchor" id="aa5300801d20e51d71952b221872458ec"></a><!-- doxytag: member="log4cxx::rolling::TriggeringPolicy::isTriggeringEvent" ref="aa5300801d20e51d71952b221872458ec" args="(Appender *appender, const log4cxx::spi::LoggingEventPtr &event, const LogString &filename, size_t fileLength)=0" -->
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<td class="memname">virtual bool isTriggeringEvent </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classlog4cxx_1_1_appender.html">Appender</a> * </td>
<td class="paramname"><em>appender</em>, </td>
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<td class="paramtype">const <a class="el" href="classlog4cxx_1_1helpers_1_1_object_ptr_t.html">log4cxx::spi::LoggingEventPtr</a> & </td>
<td class="paramname"><em>event</em>, </td>
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<td class="paramtype">const <a class="el" href="namespacelog4cxx.html#ad7ec98d27bca7666e23f27dd1fb181c8">LogString</a> & </td>
<td class="paramname"><em>filename</em>, </td>
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<td class="paramtype">size_t </td>
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<td>)</td>
<td></td><td><code> [pure virtual]</code></td>
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<p>Determines if a rollover may be appropriate at this time. </p>
<p>If true is returned, RolloverPolicy.rollover will be called but it can determine that a rollover is not warranted.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">appender</td><td>A reference to the appender. </td></tr>
<tr><td class="paramname">event</td><td>A reference to the currently event. </td></tr>
<tr><td class="paramname">filename</td><td>The filename for the currently active log file. </td></tr>
<tr><td class="paramname">fileLength</td><td>Length of the file in bytes. </td></tr>
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</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>true if a rollover should occur. </dd></dl>
<p>Implemented in <a class="el" href="classlog4cxx_1_1rolling_1_1_filter_based_triggering_policy.html#ad1465d1456055bf68fc9c3a7416bb862">FilterBasedTriggeringPolicy</a>, <a class="el" href="classlog4cxx_1_1rolling_1_1_manual_triggering_policy.html#ad1465d1456055bf68fc9c3a7416bb862">ManualTriggeringPolicy</a>, <a class="el" href="classlog4cxx_1_1rolling_1_1_size_based_triggering_policy.html#ad1465d1456055bf68fc9c3a7416bb862">SizeBasedTriggeringPolicy</a>, and <a class="el" href="classlog4cxx_1_1rolling_1_1_time_based_rolling_policy.html#ad1465d1456055bf68fc9c3a7416bb862">TimeBasedRollingPolicy</a>.</p>
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<a class="anchor" id="a55c31efee1904916b999395fa4d46a24"></a><!-- doxytag: member="log4cxx::rolling::TriggeringPolicy::releaseRef" ref="a55c31efee1904916b999395fa4d46a24" args="() const " -->
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<td class="memname">void releaseRef </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="classlog4cxx_1_1helpers_1_1_object_impl.html#a55c31efee1904916b999395fa4d46a24">ObjectImpl</a>.</p>
<p>Reimplemented in <a class="el" href="classlog4cxx_1_1rolling_1_1_time_based_rolling_policy.html#a55c31efee1904916b999395fa4d46a24">TimeBasedRollingPolicy</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="triggeringpolicy_8h.html">triggeringpolicy.h</a></li>
</ul>
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<li class="navelem"><a class="el" href="classlog4cxx_1_1rolling_1_1_triggering_policy.html">TriggeringPolicy</a> </li>
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