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| <a name="1" href="#1">1</a> <em class="jxr_comment">/*</em> |
| <a name="2" href="#2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em> |
| <a name="3" href="#3">3</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em> |
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * distributed with this work for additional information</em> |
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em> |
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em> |
| <a name="9" href="#9">9</a> <em class="jxr_comment"> *</em> |
| <a name="10" href="#10">10</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> *</em> |
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em> |
| <a name="13" href="#13">13</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em> |
| <a name="17" href="#17">17</a> <em class="jxr_comment"> * under the License.</em> |
| <a name="18" href="#18">18</a> <em class="jxr_comment"> */</em> |
| <a name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.shiro.event.support; |
| <a name="20" href="#20">20</a> |
| <a name="21" href="#21">21</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="22" href="#22">22</a> <em class="jxr_javadoccomment"> * An event listener knows how to accept and process events of a particular type (or types).</em> |
| <a name="23" href="#23">23</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="24" href="#24">24</a> <em class="jxr_javadoccomment"> * Note that this interface is in the event implementation support package (and not the event package directly)</em> |
| <a name="25" href="#25">25</a> <em class="jxr_javadoccomment"> * because it is a supporting concept for event bus implementations and not something that most application</em> |
| <a name="26" href="#26">26</a> <em class="jxr_javadoccomment"> * developers using Shiro should implement directly. App developers should instead use the</em> |
| <a name="27" href="#27">27</a> <em class="jxr_javadoccomment"> * {@link org.apache.shiro.event.Subscribe Subscribe} annotation on methods they wish to receive events.</em> |
| <a name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="29" href="#29">29</a> <em class="jxr_javadoccomment"> * This interface therefore mainly represents a 'middle man' between the event bus and the actual subscribing</em> |
| <a name="30" href="#30">30</a> <em class="jxr_javadoccomment"> * component. As such, event bus implementors (or framework/infrastructural implementors) or those that wish to</em> |
| <a name="31" href="#31">31</a> <em class="jxr_javadoccomment"> * customize listener/dispatch functionality might find this concept useful.</em> |
| <a name="32" href="#32">32</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="33" href="#33">33</a> <em class="jxr_javadoccomment"> * It is a concept almost always used in conjunction with a {@link EventListenerResolver} implementation.</em> |
| <a name="34" href="#34">34</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> * @see SingleArgumentMethodEventListener</em> |
| <a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> * @see AnnotationEventListenerResolver</em> |
| <a name="37" href="#37">37</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * @since 1.3</em> |
| <a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="40" href="#40">40</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">interface</strong> <a href="../../../../../org/apache/shiro/event/support/EventListener.html">EventListener</a> { |
| <a name="41" href="#41">41</a> |
| <a name="42" href="#42">42</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> * Returns {@code true} if the listener instance can process the specified event object, {@code false} otherwise.</em> |
| <a name="44" href="#44">44</a> <em class="jxr_javadoccomment"> * @param event the event object to test</em> |
| <a name="45" href="#45">45</a> <em class="jxr_javadoccomment"> * @return {@code true} if the listener instance can process the specified event object, {@code false} otherwise.</em> |
| <a name="46" href="#46">46</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="47" href="#47">47</a> <strong class="jxr_keyword">boolean</strong> accepts(Object event); |
| <a name="48" href="#48">48</a> |
| <a name="49" href="#49">49</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="50" href="#50">50</a> <em class="jxr_javadoccomment"> * Handles the specified event. Again, as this interface is an implementation concept, implementations of this</em> |
| <a name="51" href="#51">51</a> <em class="jxr_javadoccomment"> * method will likely dispatch the event to a 'real' processor (e.g. method).</em> |
| <a name="52" href="#52">52</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="53" href="#53">53</a> <em class="jxr_javadoccomment"> * @param event the event to handle.</em> |
| <a name="54" href="#54">54</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="55" href="#55">55</a> <strong class="jxr_keyword">void</strong> onEvent(Object event); |
| <a name="56" href="#56">56</a> } |
| </pre> |
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