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| <h2 title="Class CqListenerAdapter" class="title">Class CqListenerAdapter</h2> |
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| <li>org.apache.geode.cache.util.CqListenerAdapter</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../org/apache/geode/cache/CacheCallback.html" title="interface in org.apache.geode.cache">CacheCallback</a>, <a href="../../../../../org/apache/geode/cache/Declarable.html" title="interface in org.apache.geode.cache">Declarable</a>, <a href="../../../../../org/apache/geode/cache/query/CqListener.html" title="interface in org.apache.geode.cache.query">CqListener</a></dd> |
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| <pre>public abstract class <span class="typeNameLabel">CqListenerAdapter</span> |
| 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/geode/cache/query/CqListener.html" title="interface in org.apache.geode.cache.query">CqListener</a></pre> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/geode/cache/util/CqListenerAdapter.html#close--">close</a></span>()</code> |
| <div class="block">Called when the CQ is closed, the base region is destroyed, when the cache is closed, or when |
| this listener is removed from a CqQuery using a <code>CqAttributesMutator</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/geode/cache/util/CqListenerAdapter.html#onError-org.apache.geode.cache.query.CqEvent-">onError</a></span>(<a href="../../../../../org/apache/geode/cache/query/CqEvent.html" title="interface in org.apache.geode.cache.query">CqEvent</a> aCqEvent)</code> |
| <div class="block">An error occurred in the processing of a CQ.</div> |
| </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/geode/cache/util/CqListenerAdapter.html#onEvent-org.apache.geode.cache.query.CqEvent-">onEvent</a></span>(<a href="../../../../../org/apache/geode/cache/query/CqEvent.html" title="interface in org.apache.geode.cache.query">CqEvent</a> aCqEvent)</code> |
| <div class="block">An event occurred that modifies the results of the query.</div> |
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| <code><a href="../../../../../org/apache/geode/cache/Declarable.html#init-java.util.Properties-">init</a>, <a href="../../../../../org/apache/geode/cache/Declarable.html#initialize-org.apache.geode.cache.Cache-java.util.Properties-">initialize</a></code></li> |
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| <h4>CqListenerAdapter</h4> |
| <pre>public CqListenerAdapter()</pre> |
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| <h4>onEvent</h4> |
| <pre>public void onEvent(<a href="../../../../../org/apache/geode/cache/query/CqEvent.html" title="interface in org.apache.geode.cache.query">CqEvent</a> aCqEvent)</pre> |
| <div class="block">An event occurred that modifies the results of the query. This event does not contain an error.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/geode/cache/query/CqListener.html#onEvent-org.apache.geode.cache.query.CqEvent-">onEvent</a></code> in interface <code><a href="../../../../../org/apache/geode/cache/query/CqListener.html" title="interface in org.apache.geode.cache.query">CqListener</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>aCqEvent</code> - the <a href="../../../../../org/apache/geode/cache/query/CqEvent.html" title="interface in org.apache.geode.cache.query"><code>CqEvent</code></a> that triggered the listener</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/geode/cache/query/CqQuery.html#executeWithInitialResults--"><code>CqQuery.executeWithInitialResults()</code></a></dd> |
| </dl> |
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| <h4>onError</h4> |
| <pre>public void onError(<a href="../../../../../org/apache/geode/cache/query/CqEvent.html" title="interface in org.apache.geode.cache.query">CqEvent</a> aCqEvent)</pre> |
| <div class="block">An error occurred in the processing of a CQ. This event does contain an error. The newValue and |
| oldValue in the event may or may not be available, and will be null if not available.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/geode/cache/query/CqListener.html#onError-org.apache.geode.cache.query.CqEvent-">onError</a></code> in interface <code><a href="../../../../../org/apache/geode/cache/query/CqListener.html" title="interface in org.apache.geode.cache.query">CqListener</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>aCqEvent</code> - the <a href="../../../../../org/apache/geode/cache/query/CqEvent.html" title="interface in org.apache.geode.cache.query"><code>CqEvent</code></a> which encountered the error</dd> |
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| <h4>close</h4> |
| <pre>public void close()</pre> |
| <div class="block">Called when the CQ is closed, the base region is destroyed, when the cache is closed, or when |
| this listener is removed from a CqQuery using a <code>CqAttributesMutator</code>. |
| |
| <p> |
| Implementations should cleanup any external resources such as database connections. Any runtime |
| exceptions this method throws will be logged. |
| |
| <p> |
| It is possible for this method to be called multiple times on a single callback instance, so |
| implementations must be tolerant of this.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/geode/cache/CacheCallback.html#close--">close</a></code> in interface <code><a href="../../../../../org/apache/geode/cache/CacheCallback.html" title="interface in org.apache.geode.cache">CacheCallback</a></code></dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/geode/cache/CacheCallback.html#close--"><code>CacheCallback.close()</code></a></dd> |
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