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| <pre><span class="sourceLineNo">001</span><a id="line.1">/*</a> |
| <span class="sourceLineNo">002</span><a id="line.2"> * Licensed to the Apache Software Foundation (ASF) under one</a> |
| <span class="sourceLineNo">003</span><a id="line.3"> * or more contributor license agreements. See the NOTICE file</a> |
| <span class="sourceLineNo">004</span><a id="line.4"> * distributed with this work for additional information</a> |
| <span class="sourceLineNo">005</span><a id="line.5"> * regarding copyright ownership. The ASF licenses this file</a> |
| <span class="sourceLineNo">006</span><a id="line.6"> * to you under the Apache License, Version 2.0 (the</a> |
| <span class="sourceLineNo">007</span><a id="line.7"> * "License"); you may not use this file except in compliance</a> |
| <span class="sourceLineNo">008</span><a id="line.8"> * with the License. You may obtain a copy of the License at</a> |
| <span class="sourceLineNo">009</span><a id="line.9"> *</a> |
| <span class="sourceLineNo">010</span><a id="line.10"> * http://www.apache.org/licenses/LICENSE-2.0</a> |
| <span class="sourceLineNo">011</span><a id="line.11"> *</a> |
| <span class="sourceLineNo">012</span><a id="line.12"> * Unless required by applicable law or agreed to in writing,</a> |
| <span class="sourceLineNo">013</span><a id="line.13"> * software distributed under the License is distributed on an</a> |
| <span class="sourceLineNo">014</span><a id="line.14"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</a> |
| <span class="sourceLineNo">015</span><a id="line.15"> * KIND, either express or implied. See the License for the</a> |
| <span class="sourceLineNo">016</span><a id="line.16"> * specific language governing permissions and limitations</a> |
| <span class="sourceLineNo">017</span><a id="line.17"> * under the License.</a> |
| <span class="sourceLineNo">018</span><a id="line.18"> */</a> |
| <span class="sourceLineNo">019</span><a id="line.19">package org.apache.shiro.event.support;</a> |
| <span class="sourceLineNo">020</span><a id="line.20"></a> |
| <span class="sourceLineNo">021</span><a id="line.21">import java.util.List;</a> |
| <span class="sourceLineNo">022</span><a id="line.22"></a> |
| <span class="sourceLineNo">023</span><a id="line.23">/**</a> |
| <span class="sourceLineNo">024</span><a id="line.24"> * An {@code EventListenerResolver} knows how to resolve (either create or lookup) {@link EventListener} instances</a> |
| <span class="sourceLineNo">025</span><a id="line.25"> * as a result of inspecting a subscriber object, mostly likely a</a> |
| <span class="sourceLineNo">026</span><a id="line.26"> * {@link org.apache.shiro.event.Subscribe Subscribe}-annotated object instance.</a> |
| <span class="sourceLineNo">027</span><a id="line.27"> * <p/></a> |
| <span class="sourceLineNo">028</span><a id="line.28"> * This interface exists primarily as a support concept for the {@link DefaultEventBus} implementation. Custom</a> |
| <span class="sourceLineNo">029</span><a id="line.29"> * implementations of this interface can be configured on a {@link DefaultEventBus} instance to determine exactly</a> |
| <span class="sourceLineNo">030</span><a id="line.30"> * how a subscriber receives events.</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> * <p/></a> |
| <span class="sourceLineNo">032</span><a id="line.32"> * For example, the {@link AnnotationEventListenerResolver AnnotationEventListenerResolver} will inspect a runtime</a> |
| <span class="sourceLineNo">033</span><a id="line.33"> * object for {@link org.apache.shiro.event.Subscribe Subscribe}-annotated methods, and for each method found, return</a> |
| <span class="sourceLineNo">034</span><a id="line.34"> * an {@link EventListener} instance representing the method to invoke.</a> |
| <span class="sourceLineNo">035</span><a id="line.35"> *</a> |
| <span class="sourceLineNo">036</span><a id="line.36"> * @see AnnotationEventListenerResolver</a> |
| <span class="sourceLineNo">037</span><a id="line.37"> * @see SingleArgumentMethodEventListener</a> |
| <span class="sourceLineNo">038</span><a id="line.38"> * @since 1.3</a> |
| <span class="sourceLineNo">039</span><a id="line.39"> */</a> |
| <span class="sourceLineNo">040</span><a id="line.40">public interface EventListenerResolver {</a> |
| <span class="sourceLineNo">041</span><a id="line.41"></a> |
| <span class="sourceLineNo">042</span><a id="line.42"> /**</a> |
| <span class="sourceLineNo">043</span><a id="line.43"> * Returns {@link EventListener} instances as a result of inspecting a subscriber object, mostly likely with</a> |
| <span class="sourceLineNo">044</span><a id="line.44"> * {@link org.apache.shiro.event.Subscribe Subscribe}-annotated methods.</a> |
| <span class="sourceLineNo">045</span><a id="line.45"> *</a> |
| <span class="sourceLineNo">046</span><a id="line.46"> * @param instance the subscriber instance for which EventListener instances should be acquired.</a> |
| <span class="sourceLineNo">047</span><a id="line.47"> * @return {@link EventListener} instances as a result of inspecting a subscriber object.</a> |
| <span class="sourceLineNo">048</span><a id="line.48"> */</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> List<EventListener> getEventListeners(Object instance);</a> |
| <span class="sourceLineNo">050</span><a id="line.50">}</a> |
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