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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.storage.event</a></div>
<h2 title="Interface StoreListener" class="title">Interface StoreListener&lt;T extends <a href="StoreEvent.html" title="class in org.apache.sis.storage.event">StoreEvent</a>&gt;</h2>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type of events of interest to this listener.</dd>
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<dt>All Superinterfaces:</dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/EventListener.html?is-external=true" title="class or interface in java.util" class="externalLink">Event­Listener</a></code></dd>
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<pre>public interface <span class="typeNameLabel">StoreListener&lt;T extends <a href="StoreEvent.html" title="class in org.apache.sis.storage.event">StoreEvent</a>&gt;</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/util/EventListener.html?is-external=true" title="class or interface in java.util" class="externalLink">EventListener</a></pre>
<div class="block">An object which listens for events (typically changes or warnings) occurring in a resource
or one of its children. The kind of event is defined by the subclass of the <a href="StoreEvent.html" title="class in org.apache.sis.storage.event"><code>Store­Event</code></a>
instance given to the <a href="#eventOccured(T)"><code>event­Occured(Store­Event)</code></a> method. For example if a warning occurred
while reading data from a file, then the event will be an instance of <a href="WarningEvent.html" title="class in org.apache.sis.storage.event"><code>Warning­Event</code></a>.
<p><a href="../Resource.html" title="interface in org.apache.sis.storage"><code>Resource</code></a> implementations are responsible for instantiating the most specific
<code>Store­Event</code> subclass for the type of events. Then, all <code>Store­Listener</code>s that
<a href="../Resource.html#addListener(java.lang.Class,org.apache.sis.storage.event.StoreListener)">declared an interest</a> for
<code>Store­Event</code>s of that kind are notified, including listeners in parent resources.
Each listener is notified only once per event even if the listener is registered twice.</p></div>
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<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.0</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="StoreEvent.html" title="class in org.apache.sis.storage.event"><code>Store­Event</code></a>,
<a href="../Resource.html#addListener(java.lang.Class,org.apache.sis.storage.event.StoreListener)"><code>Resource​.add­Listener(Class, Store­Listener)</code></a></dd>
<p><font size="-1">Defined in the <code>sis-storage</code> module</font></p>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#eventOccured(T)">eventOccured</a></span>&#8203;(<a href="StoreListener.html" title="type parameter in StoreListener">T</a>&nbsp;event)</code></th>
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<div class="block">Invoked <em>after</em> a warning or a change occurred in a resource.</div>
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<h4>eventOccured</h4>
<pre class="methodSignature">void&nbsp;eventOccured&#8203;(<a href="StoreListener.html" title="type parameter in StoreListener">T</a>&nbsp;event)</pre>
<div class="block">Invoked <em>after</em> a warning or a change occurred in a resource.
The <a href="StoreEvent.html#getSource()"><code>Store­Event​.get­Source()</code></a> method gives the resource where the event occurred.
It is not necessarily the <a href="../Resource.html#addListener(java.lang.Class,org.apache.sis.storage.event.StoreListener)">resource in which this
listener has been registered</a>; it may be one of the resource children.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>event</code> - description of the change or warning that occurred in a resource. Shall not be <code>null</code>.</dd>
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