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<h1 title="Package" class="title">Package&nbsp;org.apache.logging.log4j.core.impl</h1>
<div class="docSummary">
<div class="block">Log4j 2 private implementation classes.</div>
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<p>See:&nbsp;<a href="#package.description">Description</a></p>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation">
<caption><span>Interface Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Interface</th>
<th class="colLast" scope="col">Description</th>
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<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/LocationAware.html" title="interface in org.apache.logging.log4j.core.impl">LocationAware</a></td>
<td class="colLast">
<div class="block">Classes that use location information should implement this interface.</div>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/LocationAwareLogEventFactory.html" title="interface in org.apache.logging.log4j.core.impl">LocationAwareLogEventFactory</a></td>
<td class="colLast">&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/LogEventFactory.html" title="interface in org.apache.logging.log4j.core.impl">LogEventFactory</a></td>
<td class="colLast">&nbsp;</td>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation">
<caption><span>Class Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ContextAnchor.html" title="class in org.apache.logging.log4j.core.impl">ContextAnchor</a></td>
<td class="colLast">
<div class="block">Anchor for the ThreadContext.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ContextDataFactory.html" title="class in org.apache.logging.log4j.core.impl">ContextDataFactory</a></td>
<td class="colLast">
<div class="block">Factory for creating the StringMap instances used to initialize LogEvents' <a href="../../../../../../org/apache/logging/log4j/core/LogEvent.html#getContextData--">context data</a>.</div>
</td>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ContextDataInjectorFactory.html" title="class in org.apache.logging.log4j.core.impl">ContextDataInjectorFactory</a></td>
<td class="colLast">
<div class="block">Factory for ContextDataInjectors.</div>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/DefaultLogEventFactory.html" title="class in org.apache.logging.log4j.core.impl">DefaultLogEventFactory</a></td>
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<div class="block">Always creates new LogEvent instances.</div>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ExtendedClassInfo.html" title="class in org.apache.logging.log4j.core.impl">ExtendedClassInfo</a></td>
<td class="colLast">
<div class="block">Class and package data used with a <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StackTraceElement.html?is-external=true" title="class or interface in java.lang"><code>StackTraceElement</code></a> in a <a href="../../../../../../org/apache/logging/log4j/core/impl/ExtendedStackTraceElement.html" title="class in org.apache.logging.log4j.core.impl"><code>ExtendedStackTraceElement</code></a>.</div>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ExtendedStackTraceElement.html" title="class in org.apache.logging.log4j.core.impl">ExtendedStackTraceElement</a></td>
<td class="colLast">
<div class="block">Wraps and extends the concept of the JRE's final class <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StackTraceElement.html?is-external=true" title="class or interface in java.lang"><code>StackTraceElement</code></a> by adding more location information.</div>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/Log4jContextFactory.html" title="class in org.apache.logging.log4j.core.impl">Log4jContextFactory</a></td>
<td class="colLast">
<div class="block">Factory to locate a ContextSelector and then load a LoggerContext.</div>
</td>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/Log4jLogEvent.html" title="class in org.apache.logging.log4j.core.impl">Log4jLogEvent</a></td>
<td class="colLast">
<div class="block">Implementation of a LogEvent.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/Log4jLogEvent.Builder.html" title="class in org.apache.logging.log4j.core.impl">Log4jLogEvent.Builder</a></td>
<td class="colLast">
<div class="block">LogEvent Builder helper class.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/Log4jProvider.html" title="class in org.apache.logging.log4j.core.impl">Log4jProvider</a></td>
<td class="colLast">
<div class="block">Binding for the Log4j API.</div>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/MementoMessage.html" title="class in org.apache.logging.log4j.core.impl">MementoMessage</a></td>
<td class="colLast">
<div class="block"><em>Consider this class private.</em>
<a href="../../../../../../org/apache/logging/log4j/core/impl/MementoMessage.html" title="class in org.apache.logging.log4j.core.impl"><code>MementoMessage</code></a> is intended to be used when we need to make an
immutable copy of a <code>Message</code> without forgetting the original
<code>Message.getFormat()</code> and <code>Message.getParameters()</code> values.</div>
</td>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/MutableLogEvent.html" title="class in org.apache.logging.log4j.core.impl">MutableLogEvent</a></td>
<td class="colLast">
<div class="block">Mutable implementation of the <code>LogEvent</code> interface.</div>
</td>
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<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ReusableLogEventFactory.html" title="class in org.apache.logging.log4j.core.impl">ReusableLogEventFactory</a></td>
<td class="colLast">
<div class="block">Garbage-free LogEventFactory that reuses a single mutable log event.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ThreadContextDataInjector.html" title="class in org.apache.logging.log4j.core.impl">ThreadContextDataInjector</a></td>
<td class="colLast">
<div class="block"><code>ThreadContextDataInjector</code> contains a number of strategies for copying key-value pairs from the various
<code>ThreadContext</code> map implementations into a <code>StringMap</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ThreadContextDataInjector.ForCopyOnWriteThreadContextMap.html" title="class in org.apache.logging.log4j.core.impl">ThreadContextDataInjector.ForCopyOnWriteThreadContextMap</a></td>
<td class="colLast">
<div class="block">The <code>ContextDataInjector</code> used when the ThreadContextMap implementation is a copy-on-write
StringMap-based data structure.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ThreadContextDataInjector.ForDefaultThreadContextMap.html" title="class in org.apache.logging.log4j.core.impl">ThreadContextDataInjector.ForDefaultThreadContextMap</a></td>
<td class="colLast">
<div class="block">Default <code>ContextDataInjector</code> for the legacy <code>Map&lt;String, String&gt;</code>-based ThreadContext (which is
also the ThreadContext implementation used for web applications).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ThreadContextDataInjector.ForGarbageFreeThreadContextMap.html" title="class in org.apache.logging.log4j.core.impl">ThreadContextDataInjector.ForGarbageFreeThreadContextMap</a></td>
<td class="colLast">
<div class="block">The <code>ContextDataInjector</code> used when the ThreadContextMap implementation is a garbage-free
StringMap-based data structure.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ThrowableFormatOptions.html" title="class in org.apache.logging.log4j.core.impl">ThrowableFormatOptions</a></td>
<td class="colLast">
<div class="block">Contains options which control how a <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang"><code>Throwable</code></a> pattern is formatted.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/impl/ThrowableProxy.html" title="class in org.apache.logging.log4j.core.impl">ThrowableProxy</a></td>
<td class="colLast">
<div class="block">Wraps a Throwable to add packaging information about each stack trace element.</div>
</td>
</tr>
</tbody>
</table>
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<h2 title="Package org.apache.logging.log4j.core.impl Description">Package org.apache.logging.log4j.core.impl Description</h2>
<div class="block">Log4j 2 private implementation classes.</div>
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