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| <pre><span class="sourceLineNo">001</span>/* <a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.felix.ipojo.util;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.osgi.framework.ServiceReference;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>/**<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> * Tracker Customizer.<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a><a name="line.25"></a> |
| <span class="sourceLineNo">026</span> */<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>public interface TrackerCustomizer {<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span> /**<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * A service is being added to the Tracker object.<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * This method is called before a service which matched the search parameters of the Tracker object is added to it. This method should return the service object to be tracked for this ServiceReference object.<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * The returned service object is stored in the Tracker object and is available from the getService and getServices methods.<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * @param reference the Reference to service being added to the Tracker object.<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * @return The service object to be tracked for the ServiceReference object or null if the ServiceReference object should not be tracked.<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> */<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> boolean addingService(ServiceReference reference);<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> <a name="line.37"></a> |
| <span class="sourceLineNo">038</span> /**<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * A service tracked by the Tracker object has been added in the list.<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * This method is called when a service has been added in the managed list (after addingService) and if the service has not disappeared before during the callback.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * @param reference the added reference.<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> */<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> void addedService(ServiceReference reference);<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> /**<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * A service tracked by the Tracker object has been modified.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * This method is called when a service being tracked by the Tracker object has had it properties modified.<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * @param reference the Reference to service that has been modified.<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * @param service The service object for the modified service.<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> */<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> void modifiedService(ServiceReference reference, Object service);<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> /**<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * A service tracked by the Tracker object has been removed.<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * This method is called after a service is no longer being tracked by the Tracker object.<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * @param reference the Reference to service that has been removed.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * @param service The service object for the removed service.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> */<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> void removedService(ServiceReference reference, Object service);<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span>}<a name="line.61"></a> |
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