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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.openjpa.enhance</a></div>
<h2 title="Class PCEnhancerAgent" class="title">Class PCEnhancerAgent</h2>
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<li>org.apache.openjpa.enhance.PCEnhancerAgent</li>
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<pre>public class <span class="typeNameLabel">PCEnhancerAgent</span>
extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre>
<div class="block"><p>
Java agent that makes persistent classes work with OpenJPA at runtime. This
is achieved by either running the enhancer on the classes as they are loaded,
or by redefining the classes on the fly. The agent is launched at JVM startup
from the command line:
</p>
<p>
<code>java -javaagent:openjpa.jar[=&lt;options&gt;]</code> The options string
should be formatted as a OpenJPA plugin, and may contain any properties
understood by the OpenJPA enhancer or any configuration properties. For
example:
</p>
<p>
<code>java -javaagent:openjpa.jar</code>
</p>
<p>
By default, if specified, the agent runs the OpenJPA enhancer on all classes
listed in the first persistence unit as they are loaded, and redefines all
other persistent classes when they are encountered. To disable enhancement at
class-load time and rely solely on the redefinition logic, set the
ClassLoadEnhancement flag to false. To disable redefinition and rely solely
on pre-deployment or class-load enhancement, set the RuntimeRedefinition flag
to false.
</p>
<p>
<code>java -javaagent:openjpa.jar=ClassLoadEnhancement=false</code>
</p></div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Abe White, Patrick Linskey</dd>
</dl>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">PCEnhancerAgent</a></span>()</code></th>
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<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#disableDynamicAgent()">disableDynamicAgent</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLoadSuccessful()">getLoadSuccessful</a></span>()</code></th>
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<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#loadDynamicAgent(org.apache.openjpa.lib.log.Log)">loadDynamicAgent</a></span>&#8203;(<a href="../lib/log/Log.html" title="interface in org.apache.openjpa.lib.log">Log</a>&nbsp;log)</code></th>
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<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#premain(java.lang.String,java.lang.instrument.Instrumentation)">premain</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;args,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.instrument/java/lang/instrument/Instrumentation.html?is-external=true" title="class or interface in java.lang.instrument" class="externalLink">Instrumentation</a>&nbsp;inst)</code></th>
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<h4>PCEnhancerAgent</h4>
<pre>public&nbsp;PCEnhancerAgent()</pre>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;getLoadSuccessful()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if the Agent has ran successfully. False otherwise.</dd>
</dl>
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<pre class="methodSignature">public static&nbsp;void&nbsp;disableDynamicAgent()</pre>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;loadDynamicAgent&#8203;(<a href="../lib/log/Log.html" title="interface in org.apache.openjpa.lib.log">Log</a>&nbsp;log)</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if the agent is loaded successfully</dd>
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<pre class="methodSignature">public static&nbsp;void&nbsp;premain&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;args,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.instrument/java/lang/instrument/Instrumentation.html?is-external=true" title="class or interface in java.lang.instrument" class="externalLink">Instrumentation</a>&nbsp;inst)</pre>
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