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| <div class="subTitle">org.apache.felix.dm.tracker</div> |
| <h2 title="Interface BundleTrackerCustomizer" class="title">Interface BundleTrackerCustomizer</h2> |
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| <dt>All Known Implementing Classes:</dt> |
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| <br> |
| <pre>public interface <span class="strong">BundleTrackerCustomizer</span></pre> |
| <div class="block">The <code>BundleTrackerCustomizer</code> interface allows a |
| <code>BundleTracker</code> to customize the <code>Bundle</code>s that are |
| tracked. A <code>BundleTrackerCustomizer</code> is called when a bundle is |
| being added to a <code>BundleTracker</code>. The |
| <code>BundleTrackerCustomizer</code> can then return an object for the |
| tracked bundle. A <code>BundleTrackerCustomizer</code> is also called when a |
| tracked bundle is modified or has been removed from a |
| <code>BundleTracker</code>. |
| |
| <p> |
| The methods in this interface may be called as the result of a |
| <code>BundleEvent</code> being received by a <code>BundleTracker</code>. |
| Since <code>BundleEvent</code>s are received synchronously by the |
| <code>BundleTracker</code>, it is highly recommended that implementations of |
| these methods do not alter bundle states while being synchronized on any |
| object. |
| |
| <p> |
| The <code>BundleTracker</code> class is thread-safe. It does not call a |
| <code>BundleTrackerCustomizer</code> while holding any locks. |
| <code>BundleTrackerCustomizer</code> implementations must also be |
| thread-safe.</div> |
| <dl><dt><span class="strong">Since:</span></dt> |
| <dd>1.4</dd></dl> |
| </li> |
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| <h3>Method Summary</h3> |
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| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
| <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/felix/dm/tracker/BundleTrackerCustomizer.html#addedBundle(Bundle,%20BundleEvent,%20java.lang.Object)">addedBundle</a></strong>(Bundle bundle, |
| BundleEvent event, |
| java.lang.Object object)</code> |
| <div class="block">marrs: A bundle has been added to the BundleTracker.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.Object</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/felix/dm/tracker/BundleTrackerCustomizer.html#addingBundle(Bundle,%20BundleEvent)">addingBundle</a></strong>(Bundle bundle, |
| BundleEvent event)</code> |
| <div class="block">A bundle is being added to the <code>BundleTracker</code>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/felix/dm/tracker/BundleTrackerCustomizer.html#modifiedBundle(Bundle,%20BundleEvent,%20java.lang.Object)">modifiedBundle</a></strong>(Bundle bundle, |
| BundleEvent event, |
| java.lang.Object object)</code> |
| <div class="block">A bundle tracked by the <code>BundleTracker</code> has been modified.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/felix/dm/tracker/BundleTrackerCustomizer.html#removedBundle(Bundle,%20BundleEvent,%20java.lang.Object)">removedBundle</a></strong>(Bundle bundle, |
| BundleEvent event, |
| java.lang.Object object)</code> |
| <div class="block">A bundle tracked by the <code>BundleTracker</code> has been removed.</div> |
| </td> |
| </tr> |
| </table> |
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| <a name="addingBundle(Bundle, BundleEvent)"> |
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| <h4>addingBundle</h4> |
| <pre>java.lang.Object addingBundle(Bundle bundle, |
| BundleEvent event)</pre> |
| <div class="block">A bundle is being added to the <code>BundleTracker</code>. |
| |
| <p> |
| This method is called before a bundle which matched the search parameters |
| of the <code>BundleTracker</code> is added to the |
| <code>BundleTracker</code>. This method should return the object to be |
| tracked for the specified <code>Bundle</code>. The returned object is |
| stored in the <code>BundleTracker</code> and is available from the |
| <a href="../../../../../org/apache/felix/dm/tracker/BundleTracker.html#getObject(Bundle)"><code>getObject</code></a> method.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>bundle</code> - The <code>Bundle</code> being added to the |
| <code>BundleTracker</code>.</dd><dd><code>event</code> - The bundle event which caused this customizer method to be |
| called or <code>null</code> if there is no bundle event associated |
| with the call to this method.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>The object to be tracked for the specified <code>Bundle</code> |
| object or <code>null</code> if the specified <code>Bundle</code> |
| object should not be tracked.</dd></dl> |
| </li> |
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| <h4>addedBundle</h4> |
| <pre>void addedBundle(Bundle bundle, |
| BundleEvent event, |
| java.lang.Object object)</pre> |
| <div class="block">marrs: A bundle has been added to the BundleTracker.</div> |
| </li> |
| </ul> |
| <a name="modifiedBundle(Bundle, BundleEvent, java.lang.Object)"> |
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| </a> |
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| <h4>modifiedBundle</h4> |
| <pre>void modifiedBundle(Bundle bundle, |
| BundleEvent event, |
| java.lang.Object object)</pre> |
| <div class="block">A bundle tracked by the <code>BundleTracker</code> has been modified. |
| |
| <p> |
| This method is called when a bundle being tracked by the |
| <code>BundleTracker</code> has had its state modified.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>bundle</code> - The <code>Bundle</code> whose state has been modified.</dd><dd><code>event</code> - The bundle event which caused this customizer method to be |
| called or <code>null</code> if there is no bundle event associated |
| with the call to this method.</dd><dd><code>object</code> - The tracked object for the specified bundle.</dd></dl> |
| </li> |
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| <h4>removedBundle</h4> |
| <pre>void removedBundle(Bundle bundle, |
| BundleEvent event, |
| java.lang.Object object)</pre> |
| <div class="block">A bundle tracked by the <code>BundleTracker</code> has been removed. |
| |
| <p> |
| This method is called after a bundle is no longer being tracked by the |
| <code>BundleTracker</code>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>bundle</code> - The <code>Bundle</code> that has been removed.</dd><dd><code>event</code> - The bundle event which caused this customizer method to be |
| called or <code>null</code> if there is no bundle event associated |
| with the call to this method.</dd><dd><code>object</code> - The tracked object for the specified bundle.</dd></dl> |
| </li> |
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