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<div class="subTitle">org.osgi.framework.hooks.service</div>
<h2 title="Interface ListenerHook.ListenerInfo" class="title">Interface ListenerHook.ListenerInfo</h2>
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<dt>Enclosing interface:</dt>
<dd><a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.html" title="interface in org.osgi.framework.hooks.service">ListenerHook</a></dd>
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<pre>@ProviderType
public static interface <span class="strong">ListenerHook.ListenerInfo</span></pre>
<div class="block">Information about a Service Listener. This interface describes the bundle
which added the Service Listener and the filter with which it was added.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.ListenerInfo.html#equals(java.lang.Object)">equals</a></strong>(java.lang.Object obj)</code>
<div class="block">Compares this <code>ListenerInfo</code> to another <code>ListenerInfo</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/osgi/framework/BundleContext.html" title="interface in org.osgi.framework">BundleContext</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.ListenerInfo.html#getBundleContext()">getBundleContext</a></strong>()</code>
<div class="block">Return the context of the bundle which added the listener.</div>
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<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.ListenerInfo.html#getFilter()">getFilter</a></strong>()</code>
<div class="block">Return the filter string with which the listener was added.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.ListenerInfo.html#hashCode()">hashCode</a></strong>()</code>
<div class="block">Returns the hash code for this <code>ListenerInfo</code>.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.ListenerInfo.html#isRemoved()">isRemoved</a></strong>()</code>
<div class="block">Return the state of the listener for this addition and removal life
cycle.</div>
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<h4>getBundleContext</h4>
<pre><a href="../../../../../org/osgi/framework/BundleContext.html" title="interface in org.osgi.framework">BundleContext</a> getBundleContext()</pre>
<div class="block">Return the context of the bundle which added the listener.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The context of the bundle which added the listener.</dd></dl>
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<h4>getFilter</h4>
<pre>java.lang.String getFilter()</pre>
<div class="block">Return the filter string with which the listener was added.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The filter string with which the listener was added. This may
be <code>null</code> if the listener was added without a filter.</dd></dl>
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<h4>isRemoved</h4>
<pre>boolean isRemoved()</pre>
<div class="block">Return the state of the listener for this addition and removal life
cycle. Initially this method will return <code>false</code> indicating the
listener has been added but has not been removed. After the listener
has been removed, this method must always return <code>true</code>.
<p>
There is an extremely rare case in which removed notification to
<a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.html" title="interface in org.osgi.framework.hooks.service"><code>ListenerHook</code></a>s can be made before added notification if two
threads are racing to add and remove the same service listener.
Because <a href="../../../../../org/osgi/framework/hooks/service/ListenerHook.html" title="interface in org.osgi.framework.hooks.service"><code>ListenerHook</code></a>s are called synchronously during service
listener addition and removal, the Framework cannot guarantee
in-order delivery of added and removed notification for a given
service listener. This method can be used to detect this rare
occurrence.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>false</code> if the listener has not been been removed,
<code>true</code> otherwise.</dd></dl>
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<h4>equals</h4>
<pre>boolean equals(java.lang.Object obj)</pre>
<div class="block">Compares this <code>ListenerInfo</code> to another <code>ListenerInfo</code>.
Two <code>ListenerInfo</code>s are equals if they refer to the same
listener for a given addition and removal life cycle. If the same
listener is added again, it must have a different
<code>ListenerInfo</code> which is not equal to this <code>ListenerInfo</code>.</div>
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<dt><strong>Overrides:</strong></dt>
<dd><code>equals</code> in class <code>java.lang.Object</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>obj</code> - The object to compare against this <code>ListenerInfo</code>.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the other object is a <code>ListenerInfo</code>
object and both objects refer to the same listener for a
given addition and removal life cycle.</dd></dl>
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<h4>hashCode</h4>
<pre>int hashCode()</pre>
<div class="block">Returns the hash code for this <code>ListenerInfo</code>.</div>
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<dt><strong>Overrides:</strong></dt>
<dd><code>hashCode</code> in class <code>java.lang.Object</code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The hash code of this <code>ListenerInfo</code>.</dd></dl>
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