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<div class="subTitle">org.apache.openjpa.lib.util.concurrent</div>
<h2 title="Class AbstractConcurrentEventManager" class="title">Class AbstractConcurrentEventManager</h2>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a></dd>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../org/apache/openjpa/datacache/AbstractDataCache.html" title="class in org.apache.openjpa.datacache">AbstractDataCache</a>, <a href="../../../../../../org/apache/openjpa/datacache/AbstractQueryCache.html" title="class in org.apache.openjpa.datacache">AbstractQueryCache</a>, <a href="../../../../../../org/apache/openjpa/event/BrokerFactoryEventManager.html" title="class in org.apache.openjpa.event">BrokerFactoryEventManager</a>, <a href="../../../../../../org/apache/openjpa/lib/jdbc/JDBCEventConnectionDecorator.html" title="class in org.apache.openjpa.lib.jdbc">JDBCEventConnectionDecorator</a>, <a href="../../../../../../org/apache/openjpa/event/RemoteCommitEventManager.html" title="class in org.apache.openjpa.event">RemoteCommitEventManager</a>, <a href="../../../../../../org/apache/openjpa/event/TransactionEventManager.html" title="class in org.apache.openjpa.event">TransactionEventManager</a></dd>
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<pre>public abstract class <span class="strong">AbstractConcurrentEventManager</span>
extends <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre>
<div class="block">Base event manager that handles adding/removing listeners
and firing events. Meant for high concurrency. This class is
reentrant-safe; listeners can be added and removed by other listeners when
they receive events. The changes will not be visible until the event fire
that initiated the recursive sequence of calls completes, however.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Abe White</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../serialized-form.html#org.apache.openjpa.lib.util.concurrent.AbstractConcurrentEventManager">Serialized Form</a></dd></dl>
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<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#_listeners">_listeners</a></strong></code>&nbsp;</td>
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<td class="colOne"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#AbstractConcurrentEventManager()">AbstractConcurrentEventManager</a></strong>()</code>
<div class="block">Default constructor.</div>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#addListener(java.lang.Object)">addListener</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)</code>
<div class="block">Register an event listener.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a>[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#fireEvent(java.lang.Object)">fireEvent</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;event)</code>
<div class="block">Fire the given event to all listeners.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>protected abstract void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#fireEvent(java.lang.Object,%20java.lang.Object)">fireEvent</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;event,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)</code>
<div class="block">Implement this method to fire the given event to the given listener.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#getListeners()">getListeners</a></strong>()</code>
<div class="block">Return a read-only list of listeners.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#hasListener(java.lang.Object)">hasListener</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)</code>
<div class="block">Return whether the given instance is in the list of listeners.</div>
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<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#hasListeners()">hasListeners</a></strong>()</code>
<div class="block">Return true if there are any registered listeners.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#isFailFast()">isFailFast</a></strong>()</code>
<div class="block">Whether to fail after the first exception thrown by any listener.</div>
</td>
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<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#newListenerCollection()">newListenerCollection</a></strong>()</code>
<div class="block">Return a new concurrent container for listeners.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#removeListener(java.lang.Object)">removeListener</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)</code>
<div class="block">Remove an event listener.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/AbstractConcurrentEventManager.html#setFailFast(boolean)">setFailFast</a></strong>(boolean&nbsp;failFast)</code>
<div class="block">Whether to fail after the first exception thrown by any listener.</div>
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<code><a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<pre>protected final&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a> _listeners</pre>
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<h4>AbstractConcurrentEventManager</h4>
<pre>public&nbsp;AbstractConcurrentEventManager()</pre>
<div class="block">Default constructor.</div>
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<pre>public&nbsp;boolean&nbsp;isFailFast()</pre>
<div class="block">Whether to fail after the first exception thrown by any listener.</div>
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<h4>setFailFast</h4>
<pre>public&nbsp;void&nbsp;setFailFast(boolean&nbsp;failFast)</pre>
<div class="block">Whether to fail after the first exception thrown by any listener.</div>
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<h4>addListener</h4>
<pre>public&nbsp;void&nbsp;addListener(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)</pre>
<div class="block">Register an event listener.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html#addListener(java.lang.Object)">addListener</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a></code></dd>
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<h4>removeListener</h4>
<pre>public&nbsp;boolean&nbsp;removeListener(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)</pre>
<div class="block">Remove an event listener.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html#removeListener(java.lang.Object)">removeListener</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a></code></dd>
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<h4>hasListener</h4>
<pre>public&nbsp;boolean&nbsp;hasListener(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)</pre>
<div class="block">Return whether the given instance is in the list of listeners.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html#hasListener(java.lang.Object)">hasListener</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a></code></dd>
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<h4>hasListeners</h4>
<pre>public&nbsp;boolean&nbsp;hasListeners()</pre>
<div class="block">Return true if there are any registered listeners.</div>
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html#hasListeners()">hasListeners</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a></code></dd>
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<pre>public&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&nbsp;getListeners()</pre>
<div class="block">Return a read-only list of listeners.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html#getListeners()">getListeners</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a></code></dd>
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<h4>fireEvent</h4>
<pre>public&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a>[]&nbsp;fireEvent(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;event)</pre>
<div class="block">Fire the given event to all listeners.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html#fireEvent(java.lang.Object)">fireEvent</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openjpa/lib/util/EventManager.html" title="interface in org.apache.openjpa.lib.util">EventManager</a></code></dd>
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<pre>protected abstract&nbsp;void&nbsp;fireEvent(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;event,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;listener)
throws <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre>
<div class="block">Implement this method to fire the given event to the given listener.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://download.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd></dl>
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<h4>newListenerCollection</h4>
<pre>protected&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&nbsp;newListenerCollection()</pre>
<div class="block">Return a new concurrent container for listeners. Uses a
<a href="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/CopyOnWriteArrayList.html?is-external=true" title="class or interface in java.util.concurrent"><code>CopyOnWriteArrayList</code></a> by default.</div>
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