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<h1 title="Package org.apache.logging.log4j" class="title">Package org.apache.logging.log4j</h1>
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<div class="package-signature"><span class="annotations">@Export
@Version("2.20.2")
</span>package <span class="element-name">org.apache.logging.log4j</span></div>
<section class="package-description" id="package-description">
<div class="block">Public API for Log4j 2.
<p>
The main entry point into Log4j is the <a href="LogManager.html" title="class in org.apache.logging.log4j"><code>LogManager</code></a> class which can be used to
obtain <a href="Logger.html" title="interface in org.apache.logging.log4j"><code>Logger</code></a> objects, the current
<a href="spi/LoggerContext.html" title="interface in org.apache.logging.log4j.spi"><code>LoggerContext</code></a>, a new <code>LoggerContext</code>, and the current
<a href="spi/LoggerContextFactory.html" title="interface in org.apache.logging.log4j.spi"><code>LoggerContextFactory</code></a>.
</p>
<p>
<a href="Marker.html" title="interface in org.apache.logging.log4j"><code>Marker</code></a> objects can be obtained through the
<a href="MarkerManager.html" title="class in org.apache.logging.log4j"><code>MarkerManager</code></a>. The MDC (Mapped Diagnostic Context) can be
used through the <a href="ThreadContext.html" title="class in org.apache.logging.log4j"><code>ThreadContext</code></a> class.
</p></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="http://logging.apache.org/log4j/2.x/manual/api.html">Log4j 2 API manual</a></li>
</ul>
</dd>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<li>
<div id="related-package-summary">
<div class="caption"><span>Related Packages</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Package</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><a href="message/package-summary.html">org.apache.logging.log4j.message</a></div>
<div class="col-last even-row-color">
<div class="block">Public Message Types used for Log4j 2.</div>
</div>
<div class="col-first odd-row-color"><a href="simple/package-summary.html">org.apache.logging.log4j.simple</a></div>
<div class="col-last odd-row-color">
<div class="block">Simple logging implementation.</div>
</div>
<div class="col-first even-row-color"><a href="spi/package-summary.html">org.apache.logging.log4j.spi</a></div>
<div class="col-last even-row-color">
<div class="block">Internal interfaces and classes to be used by authors of logging implementations or for internal use by
API classes.</div>
</div>
<div class="col-first odd-row-color"><a href="status/package-summary.html">org.apache.logging.log4j.status</a></div>
<div class="col-last odd-row-color">
<div class="block">Status API for Log4j 2.</div>
</div>
<div class="col-first even-row-color"><a href="util/package-summary.html">org.apache.logging.log4j.util</a></div>
<div class="col-last even-row-color">
<div class="block">Internal utility classes for the Log4j 2 API.</div>
</div>
</div>
</div>
</li>
<li>
<div id="class-summary">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="class-summary-tab0" role="tab" aria-selected="true" aria-controls="class-summary.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary', 2)" class="active-table-tab">All Classes and Interfaces</button><button id="class-summary-tab1" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab1', 2)" class="table-tab">Interfaces</button><button id="class-summary-tab2" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab2', 2)" class="table-tab">Classes</button><button id="class-summary-tab5" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab5', 2)" class="table-tab">Exceptions</button></div>
<div id="class-summary.tabpanel" role="tabpanel">
<div class="summary-table two-column-summary" aria-labelledby="class-summary-tab0">
<div class="table-header col-first">Class</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color class-summary class-summary-tab1"><a href="BridgeAware.html" title="interface in org.apache.logging.log4j">BridgeAware</a></div>
<div class="col-last even-row-color class-summary class-summary-tab1">
<div class="block">Extended interface to allow bridges between logging systems to convey the
correct location information.</div>
</div>
<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="CloseableThreadContext.html" title="class in org.apache.logging.log4j">CloseableThreadContext</a></div>
<div class="col-last odd-row-color class-summary class-summary-tab2">
<div class="block">Adds entries to the <a href="ThreadContext.html" title="class in org.apache.logging.log4j"><code>stack or map</code></a> and them removes them when the object is closed, e.g.</div>
</div>
<div class="col-first even-row-color class-summary class-summary-tab2"><a href="CloseableThreadContext.Instance.html" title="class in org.apache.logging.log4j">CloseableThreadContext.Instance</a></div>
<div class="col-last even-row-color class-summary class-summary-tab2">&nbsp;</div>
<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="EventLogger.html" title="class in org.apache.logging.log4j">EventLogger</a></div>
<div class="col-last odd-row-color class-summary class-summary-tab2">
<div class="block">Logs "Events" that are represented as <a href="message/StructuredDataMessage.html" title="class in org.apache.logging.log4j.message"><code>StructuredDataMessage</code></a>.</div>
</div>
<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Level.html" title="class in org.apache.logging.log4j">Level</a></div>
<div class="col-last even-row-color class-summary class-summary-tab2">
<div class="block">Levels used for identifying the severity of an event.</div>
</div>
<div class="col-first odd-row-color class-summary class-summary-tab1"><a href="LogBuilder.html" title="interface in org.apache.logging.log4j">LogBuilder</a></div>
<div class="col-last odd-row-color class-summary class-summary-tab1">
<div class="block">Interface for constructing log events before logging them.</div>
</div>
<div class="col-first even-row-color class-summary class-summary-tab1"><a href="Logger.html" title="interface in org.apache.logging.log4j">Logger</a></div>
<div class="col-last even-row-color class-summary class-summary-tab1">
<div class="block">This is the central interface in the log4j package.</div>
</div>
<div class="col-first odd-row-color class-summary class-summary-tab5"><a href="LoggingException.html" title="class in org.apache.logging.log4j">LoggingException</a></div>
<div class="col-last odd-row-color class-summary class-summary-tab5">
<div class="block">Exception thrown when an error occurs while logging.</div>
</div>
<div class="col-first even-row-color class-summary class-summary-tab2"><a href="LogManager.html" title="class in org.apache.logging.log4j">LogManager</a></div>
<div class="col-last even-row-color class-summary class-summary-tab2">
<div class="block">The anchor point for the Log4j logging system.</div>
</div>
<div class="col-first odd-row-color class-summary class-summary-tab1"><a href="Marker.html" title="interface in org.apache.logging.log4j">Marker</a></div>
<div class="col-last odd-row-color class-summary class-summary-tab1">
<div class="block">Markers are objects that are used to add easily filterable information to log messages.</div>
</div>
<div class="col-first even-row-color class-summary class-summary-tab2"><a href="MarkerManager.html" title="class in org.apache.logging.log4j">MarkerManager</a></div>
<div class="col-last even-row-color class-summary class-summary-tab2">
<div class="block">Applications create Markers by using the Marker Manager.</div>
</div>
<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="MarkerManager.Log4jMarker.html" title="class in org.apache.logging.log4j">MarkerManager.Log4jMarker</a></div>
<div class="col-last odd-row-color class-summary class-summary-tab2">
<div class="block"><em>Consider this class private, it is only public to satisfy Jackson for XML and JSON IO.</em></div>
</div>
<div class="col-first even-row-color class-summary class-summary-tab2"><a href="ThreadContext.html" title="class in org.apache.logging.log4j">ThreadContext</a></div>
<div class="col-last even-row-color class-summary class-summary-tab2">
<div class="block">The ThreadContext allows applications to store information either in a Map or a Stack.</div>
</div>
<div class="col-first odd-row-color class-summary class-summary-tab1"><a href="ThreadContext.ContextStack.html" title="interface in org.apache.logging.log4j">ThreadContext.ContextStack</a></div>
<div class="col-last odd-row-color class-summary class-summary-tab1">
<div class="block">The ThreadContext Stack interface.</div>
</div>
</div>
</div>
</div>
</li>
</ul>
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