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<div class="subTitle">org.apache.logging.log4j.core.config.composite</div>
<h2 title="Class DefaultMergeStrategy" class="title">Class DefaultMergeStrategy</h2>
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<li>org.apache.logging.log4j.core.config.composite.DefaultMergeStrategy</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/MergeStrategy.html" title="interface in org.apache.logging.log4j.core.config.composite">MergeStrategy</a></dd>
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<pre>public class <a href="../../../../../../../src-html/org/apache/logging/log4j/core/config/composite/DefaultMergeStrategy.html#line.55">DefaultMergeStrategy</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>
implements <a href="../../../../../../../org/apache/logging/log4j/core/config/composite/MergeStrategy.html" title="interface in org.apache.logging.log4j.core.config.composite">MergeStrategy</a></pre>
<div class="block">The default merge strategy for composite configurations.
<p>
The default merge strategy performs the merge according to the following rules:
<ol>
<li>Aggregates the global configuration attributes with those in later configurations replacing those in previous
configurations with the exception that the highest status level and the lowest monitorInterval greater than 0 will
be used.</li>
<li>Properties from all configurations are aggregated. Duplicate properties replace those in previous
configurations.</li>
<li>Filters are aggregated under a CompositeFilter if more than one Filter is defined. Since Filters are not named
duplicates may be present.</li>
<li>Scripts and ScriptFile references are aggregated. Duplicate definitions replace those in previous
configurations.</li>
<li>Appenders are aggregated. Appenders with the same name are replaced by those in later configurations, including
all of the Appender's subcomponents.</li>
<li>Loggers are all aggregated. Logger attributes are individually merged with duplicates being replaced by those
in later configurations. Appender references on a Logger are aggregated with duplicates being replaced by those in
later configurations. Filters on a Logger are aggregated under a CompositeFilter if more than one Filter is defined.
Since Filters are not named duplicates may be present. Filters under Appender references included or discarded
depending on whether their parent Appender reference is kept or discarded.</li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/DefaultMergeStrategy.html#DefaultMergeStrategy--">DefaultMergeStrategy</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/DefaultMergeStrategy.html#mergConfigurations-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.plugins.util.PluginManager-">mergConfigurations</a></span>(<a href="../../../../../../../org/apache/logging/log4j/core/config/Node.html" title="class in org.apache.logging.log4j.core.config">Node</a>&nbsp;target,
<a href="../../../../../../../org/apache/logging/log4j/core/config/Node.html" title="class in org.apache.logging.log4j.core.config">Node</a>&nbsp;source,
<a href="../../../../../../../org/apache/logging/log4j/core/config/plugins/util/PluginManager.html" title="class in org.apache.logging.log4j.core.config.plugins.util">PluginManager</a>&nbsp;pluginManager)</code>
<div class="block">Merge the source Configuration into the target Configuration.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/DefaultMergeStrategy.html#mergeRootProperties-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.AbstractConfiguration-">mergeRootProperties</a></span>(<a href="../../../../../../../org/apache/logging/log4j/core/config/Node.html" title="class in org.apache.logging.log4j.core.config">Node</a>&nbsp;rootNode,
<a href="../../../../../../../org/apache/logging/log4j/core/config/AbstractConfiguration.html" title="class in org.apache.logging.log4j.core.config">AbstractConfiguration</a>&nbsp;configuration)</code>
<div class="block">Merge the root properties.</div>
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<h4>DefaultMergeStrategy</h4>
<pre>public&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/config/composite/DefaultMergeStrategy.html#line.55">DefaultMergeStrategy</a>()</pre>
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<h4>mergeRootProperties</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/config/composite/DefaultMergeStrategy.html#line.72">mergeRootProperties</a>(<a href="../../../../../../../org/apache/logging/log4j/core/config/Node.html" title="class in org.apache.logging.log4j.core.config">Node</a>&nbsp;rootNode,
<a href="../../../../../../../org/apache/logging/log4j/core/config/AbstractConfiguration.html" title="class in org.apache.logging.log4j.core.config">AbstractConfiguration</a>&nbsp;configuration)</pre>
<div class="block">Merge the root properties.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/MergeStrategy.html#mergeRootProperties-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.AbstractConfiguration-">mergeRootProperties</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/MergeStrategy.html" title="interface in org.apache.logging.log4j.core.config.composite">MergeStrategy</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rootNode</code> - The composite root node.</dd>
<dd><code>configuration</code> - The configuration to merge.</dd>
</dl>
</li>
</ul>
<a name="mergConfigurations-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.plugins.util.PluginManager-">
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<h4>mergConfigurations</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/config/composite/DefaultMergeStrategy.html#line.116">mergConfigurations</a>(<a href="../../../../../../../org/apache/logging/log4j/core/config/Node.html" title="class in org.apache.logging.log4j.core.config">Node</a>&nbsp;target,
<a href="../../../../../../../org/apache/logging/log4j/core/config/Node.html" title="class in org.apache.logging.log4j.core.config">Node</a>&nbsp;source,
<a href="../../../../../../../org/apache/logging/log4j/core/config/plugins/util/PluginManager.html" title="class in org.apache.logging.log4j.core.config.plugins.util">PluginManager</a>&nbsp;pluginManager)</pre>
<div class="block">Merge the source Configuration into the target Configuration.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/MergeStrategy.html#mergConfigurations-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.Node-org.apache.logging.log4j.core.config.plugins.util.PluginManager-">mergConfigurations</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/config/composite/MergeStrategy.html" title="interface in org.apache.logging.log4j.core.config.composite">MergeStrategy</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>target</code> - The target node to merge into.</dd>
<dd><code>source</code> - The source node.</dd>
<dd><code>pluginManager</code> - The PluginManager.</dd>
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