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| <div class="subTitle">org.apache.geode.cache</div> |
| <h2 title="Interface CacheEvent" class="title">Interface CacheEvent<K,V></h2> |
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| <dt>All Known Subinterfaces:</dt> |
| <dd><a href="../../../../org/apache/geode/cache/EntryEvent.html" title="interface in org.apache.geode.cache">EntryEvent</a><K,V>, <a href="../../../../org/apache/geode/cache/RegionEvent.html" title="interface in org.apache.geode.cache">RegionEvent</a><K,V>, <a href="../../../../org/apache/geode/cache/RoleEvent.html" title="interface in org.apache.geode.cache">RoleEvent</a><K,V>, <a href="../../../../org/apache/geode/cache/util/TimestampedEntryEvent.html" title="interface in org.apache.geode.cache.util">TimestampedEntryEvent</a></dd> |
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| <br> |
| <pre>public interface <span class="typeNameLabel">CacheEvent<K,V></span></pre> |
| <div class="block">A region- or entry-related event affecting the cache. |
| <P> |
| Prior to release <code>6.0</code> the <code>NOT_AVAILABLE</code> constant was used to indicate an |
| object value was not available. However in <code>6.0</code> generic typing was added to |
| <a href="../../../../org/apache/geode/cache/Region.html" title="interface in org.apache.geode.cache"><code>Region</code></a> and since this constant's type will not be an instance of the generic type |
| <code>V</code> returning it would cause a ClassCastException. So in <code>6.0</code> and later |
| <code>null</code> is now used in place of <code>NOT_AVAILABLE</code>.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>GemFire 2.0</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../org/apache/geode/cache/CacheListener.html" title="interface in org.apache.geode.cache"><code>CacheListener</code></a></dd> |
| </dl> |
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| <h3>Method Summary</h3> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><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></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/cache/CacheEvent.html#getCallbackArgument--">getCallbackArgument</a></span>()</code> |
| <div class="block">Returns the callbackArgument passed to the method that generated this event.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/cache/CacheEvent.html#getDistributedMember--">getDistributedMember</a></span>()</code> |
| <div class="block">Returns the <a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed"><code>DistributedMember</code></a> that this event originated in.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/geode/cache/Operation.html" title="class in org.apache.geode.cache">Operation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/cache/CacheEvent.html#getOperation--">getOperation</a></span>()</code> |
| <div class="block">Return a description of the operation that triggered this event.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/geode/cache/Region.html" title="interface in org.apache.geode.cache">Region</a><<a href="../../../../org/apache/geode/cache/CacheEvent.html" title="type parameter in CacheEvent">K</a>,<a href="../../../../org/apache/geode/cache/CacheEvent.html" title="type parameter in CacheEvent">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/cache/CacheEvent.html#getRegion--">getRegion</a></span>()</code> |
| <div class="block">Returns the region to which this cached object belongs or the region that raised this event for |
| <code>RegionEvent</code>s.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/cache/CacheEvent.html#isCallbackArgumentAvailable--">isCallbackArgumentAvailable</a></span>()</code> |
| <div class="block">Returns <code>true</code> if the callback argument is "available".</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/cache/CacheEvent.html#isOriginRemote--">isOriginRemote</a></span>()</code> |
| <div class="block">Answer true if this event originated in a cache other than this one.</div> |
| </td> |
| </tr> |
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| <h4>getRegion</h4> |
| <pre><a href="../../../../org/apache/geode/cache/Region.html" title="interface in org.apache.geode.cache">Region</a><<a href="../../../../org/apache/geode/cache/CacheEvent.html" title="type parameter in CacheEvent">K</a>,<a href="../../../../org/apache/geode/cache/CacheEvent.html" title="type parameter in CacheEvent">V</a>> getRegion()</pre> |
| <div class="block">Returns the region to which this cached object belongs or the region that raised this event for |
| <code>RegionEvent</code>s.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the region associated with this object or the region that raised this event.</dd> |
| </dl> |
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| <h4>getOperation</h4> |
| <pre><a href="../../../../org/apache/geode/cache/Operation.html" title="class in org.apache.geode.cache">Operation</a> getOperation()</pre> |
| <div class="block">Return a description of the operation that triggered this event.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the operation that triggered this event.</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>GemFire 5.0</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getCallbackArgument--"> |
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| <h4>getCallbackArgument</h4> |
| <pre><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> getCallbackArgument()</pre> |
| <div class="block">Returns the callbackArgument passed to the method that generated this event. Provided primarily |
| in case this object or region has already been destroyed. See the <a href="../../../../org/apache/geode/cache/Region.html" title="interface in org.apache.geode.cache"><code>Region</code></a> interface |
| methods that take a callbackArgument parameter.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the callbackArgument associated with this event. <code>null</code> is returned if the |
| callback argument is not propagated to the event. This happens for events given to |
| <a href="../../../../org/apache/geode/cache/TransactionListener.html" title="interface in org.apache.geode.cache"><code>TransactionListener</code></a> and to <a href="../../../../org/apache/geode/cache/CacheListener.html" title="interface in org.apache.geode.cache"><code>CacheListener</code></a> on the remote side of a |
| transaction commit.</dd> |
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| <h4>isCallbackArgumentAvailable</h4> |
| <pre>boolean isCallbackArgumentAvailable()</pre> |
| <div class="block">Returns <code>true</code> if the callback argument is "available". Not available means that the |
| callback argument may have existed but it could not be obtained. Note that |
| <a href="../../../../org/apache/geode/cache/CacheEvent.html#getCallbackArgument--"><code>getCallbackArgument()</code></a> will return <code>null</code> when this method returns |
| <code>false</code>.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether the callback argument is "available"</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>GemFire 6.0</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>isOriginRemote</h4> |
| <pre>boolean isOriginRemote()</pre> |
| <div class="block">Answer true if this event originated in a cache other than this one. Answer false if this event |
| originated in this cache.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if this event originated remotely</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getDistributedMember</h4> |
| <pre><a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a> getDistributedMember()</pre> |
| <div class="block">Returns the <a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed"><code>DistributedMember</code></a> that this event originated in.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the member that performed the operation that originated this event.</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>GemFire 5.0</dd> |
| </dl> |
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