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| <h2 title="Class ContextDataInjectorFactory" class="title">Class ContextDataInjectorFactory</h2> |
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| <li>org.apache.logging.log4j.core.impl.ContextDataInjectorFactory</li> |
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| <pre>public class <a href="../../../../../../src-html/org/apache/logging/log4j/core/impl/ContextDataInjectorFactory.html#line.43">ContextDataInjectorFactory</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Factory for ContextDataInjectors. Returns a new <code>ContextDataInjector</code> instance based on the value of system |
| property <code>log4j2.ContextDataInjector</code>. Users may use this system property to specify the fully qualified class |
| name of a class that implements the <code>ContextDataInjector</code> interface. |
| If no value was specified this factory method returns one of the injectors defined in |
| <code>ThreadContextDataInjector</code>.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.7</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/logging/log4j/core/ContextDataInjector.html" title="interface in org.apache.logging.log4j.core"><code>ContextDataInjector</code></a>, |
| <code>ReadOnlyStringMap</code>, |
| <a href="../../../../../../org/apache/logging/log4j/core/impl/ThreadContextDataInjector.html" title="class in org.apache.logging.log4j.core.impl"><code>ThreadContextDataInjector</code></a>, |
| <a href="../../../../../../org/apache/logging/log4j/core/LogEvent.html#getContextData--"><code>LogEvent.getContextData()</code></a></dd> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/impl/ContextDataInjectorFactory.html#ContextDataInjectorFactory--">ContextDataInjectorFactory</a></span>()</code> </td> |
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| <td class="colFirst"><code>static <a href="../../../../../../org/apache/logging/log4j/core/ContextDataInjector.html" title="interface in org.apache.logging.log4j.core">ContextDataInjector</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/impl/ContextDataInjectorFactory.html#createInjector--">createInjector</a></span>()</code> |
| <div class="block">Returns a new <code>ContextDataInjector</code> instance based on the value of system property |
| <code>log4j2.ContextDataInjector</code>.</div> |
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| <h4>ContextDataInjectorFactory</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/logging/log4j/core/impl/ContextDataInjectorFactory.html#line.43">ContextDataInjectorFactory</a>()</pre> |
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| <h4>createInjector</h4> |
| <pre>public static <a href="../../../../../../org/apache/logging/log4j/core/ContextDataInjector.html" title="interface in org.apache.logging.log4j.core">ContextDataInjector</a> <a href="../../../../../../src-html/org/apache/logging/log4j/core/impl/ContextDataInjectorFactory.html#line.68">createInjector</a>()</pre> |
| <div class="block">Returns a new <code>ContextDataInjector</code> instance based on the value of system property |
| <code>log4j2.ContextDataInjector</code>. If no value was specified this factory method returns one of the |
| <code>ContextDataInjector</code> classes defined in <a href="../../../../../../org/apache/logging/log4j/core/impl/ThreadContextDataInjector.html" title="class in org.apache.logging.log4j.core.impl"><code>ThreadContextDataInjector</code></a> which is most appropriate for |
| the ThreadContext implementation. |
| <p> |
| <b>Note:</b> It is no longer recommended that users provide a custom implementation of the ContextDataInjector. |
| Instead, provide a <code>ContextDataProvider</code>. |
| </p> |
| <p> |
| Users may use this system property to specify the fully qualified class name of a class that implements the |
| <code>ContextDataInjector</code> interface. |
| </p><p> |
| When providing a custom <code>ContextDataInjector</code>, be aware that this method may be invoked multiple times by |
| the various components in Log4j that need access to context data. |
| This includes the object(s) that populate log events, but also various lookups and filters that look at |
| context data to determine whether an event should be logged. |
| </p></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a ContextDataInjector that populates the <code>ReadOnlyStringMap</code> of all <code>LogEvent</code> objects</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/logging/log4j/core/LogEvent.html#getContextData--"><code>LogEvent.getContextData()</code></a>, |
| <a href="../../../../../../org/apache/logging/log4j/core/ContextDataInjector.html" title="interface in org.apache.logging.log4j.core"><code>ContextDataInjector</code></a></dd> |
| </dl> |
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