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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 java.lang.reflect.InvocationTargetException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.lang.reflect.Method;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.felix.ipojo.InstanceManager;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.felix.ipojo.parser.FieldMetadata;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.felix.ipojo.parser.MethodMetadata;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>/**<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * A callback allows invoking a method on a POJO.<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * This class supports both public, protected and private methods of the<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * implementation class. This class also supports public method from super class.<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * The {@link Method} object is computed once and this computation is delayed<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * to the first invocation.<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a><a name="line.34"></a> |
| <span class="sourceLineNo">035</span> */<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>public class Callback {<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> * The method object.<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * Computed at the first call.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> */<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> protected Method m_methodObj;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span> /**<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * The name of the method to call.<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> */<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> private String m_method;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> /**<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * Is the method a static method ?<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * This implies calling the method on <code>null</code><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> */<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private boolean m_isStatic;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> /**<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * The reference on the instance manager.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * Used to get POJO objects.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> */<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> private InstanceManager m_manager;<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> |
| <span class="sourceLineNo">062</span> * The argument classes.<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * This array contains the list of argument class names.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private String[] m_args;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> /**<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * Creates a Callback.<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * If the argument array is not null the reflection type are computed.<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * @see {@link Callback#computeArguments(String[])}<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * @param method the name of the method to call<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * @param args the argument type name, or <code>null</code> if no arguments<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * @param isStatic is the method a static method<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * @param manager the instance manager of the component containing the method<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> */<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> public Callback(String method, String[] args, boolean isStatic, InstanceManager manager) {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> m_method = method;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> m_isStatic = isStatic;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> m_manager = manager;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> if (args != null) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> computeArguments(args);<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> } else {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> m_args = new String[0];<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> }<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> /**<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * Creates a Callback.<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * @param method the the name of the method to call<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * @param args the argument classes<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * @param isStatic the is the method a static method<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * @param manager the the instance manager of the component containing the method<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> */<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> public Callback(String method, Class[] args, boolean isStatic, InstanceManager manager) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> m_method = method;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> m_isStatic = isStatic;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> m_manager = manager;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> m_args = new String[args.length];<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> for (int i = 0; i < args.length; i++) {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> m_args[i] = args[i].getName();<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> /**<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * Creates a Callback.<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * @param method the {@link MethodMetadata} obtained from manipulation<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * metadata ({@link PojoMetadata}).<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * @param manager the instance manager.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> */<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> public Callback(MethodMetadata method, InstanceManager manager) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> m_isStatic = false;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> m_method = method.getMethodName();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> m_manager = manager;<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> computeArguments(method.getMethodArguments());<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span><a name="line.116"></a> |
| <span class="sourceLineNo">117</span> /**<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * Computes arguments of the method.<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * This method computes "reflection type" from given argument.<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * @see FieldMetadata#getReflectionType(String)<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> * @param args the arguments of the method.<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> */<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> private void computeArguments(String[] args) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> m_args = new String[args.length];<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> for (int i = 0; i < args.length; i++) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> m_args[i] = FieldMetadata.getReflectionType(args[i]);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> }<a name="line.128"></a> |
| <span class="sourceLineNo">129</span><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> /**<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> * Searches the {@link Method} in the given method arrays.<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> * @param methods the method array in which the method should be found<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * @return the method object or <code>null</code> if not found<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> */<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> private Method searchMethodInMethodArray(Method[] methods) {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> for (int i = 0; i < methods.length; i++) {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> // First check the method name<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> if (methods[i].getName().equals(m_method)) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // Check arguments<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> Class[] clazzes = methods[i].getParameterTypes();<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> if (clazzes.length == m_args.length) { // Test size to avoid useless loop<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> int argIndex = 0;<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> for (; argIndex < m_args.length; argIndex++) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> if (!m_args[argIndex].equals(clazzes[argIndex].getName())) {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> break;<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> if (argIndex == m_args.length) { // No mismatch detected.<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> return methods[i]; // It is the looked method.<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> return null;<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span><a name="line.156"></a> |
| <span class="sourceLineNo">157</span> /**<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> * Searches the {@link Method} object in the POJO by analyzing implementation<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> * class methods. The name of the method and the argument type are checked.<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> * @throws NoSuchMethodException if the method cannot be found either in the<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * implementation class or in parent classes.<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> */<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> protected void searchMethod() throws NoSuchMethodException {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> Method[] methods = m_manager.getClazz().getDeclaredMethods();<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> m_methodObj = searchMethodInMethodArray(methods);<a name="line.165"></a> |
| <span class="sourceLineNo">166</span><a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (m_methodObj == null) { // look at parent classes<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> methods = m_manager.getClazz().getMethods();<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> m_methodObj = searchMethodInMethodArray(methods);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> }<a name="line.170"></a> |
| <span class="sourceLineNo">171</span><a name="line.171"></a> |
| <span class="sourceLineNo">172</span> if (m_methodObj == null) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> throw new NoSuchMethodException(m_method);<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> } else {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> if (! m_methodObj.isAccessible()) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> // If not accessible, try to set the accessibility.<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> m_methodObj.setAccessible(true);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> }<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span><a name="line.181"></a> |
| <span class="sourceLineNo">182</span> /**<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> * Invokes the method without arguments.<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> * If several the instance contains several objects, the method is invoked<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> * on every objects.<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> * @return the result of the invocation, <code>null</code> for <code>void</code><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> * method, the last result for multi-object instance<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * @throws NoSuchMethodException if Method is not found in the class<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> * @throws InvocationTargetException if the method throws an exception<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> * @throws IllegalAccessException if the method can not be invoked<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> */<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> public Object call() throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> return call(new Object[0]);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span><a name="line.195"></a> |
| <span class="sourceLineNo">196</span> /**<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> * Invokes the method without arguments.<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> * The method is invokes on the specified object.<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> * @param instance the instance on which call the callback<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> * @return the result of the invocation, <code>null</code> for<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> * <code>void</code> method<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> * @throws NoSuchMethodException if the method was not found<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> * @throws IllegalAccessException if the method cannot be called<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> * @throws InvocationTargetException if an error happens in the method<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> */<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> public Object call(Object instance) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> return call(instance, new Object[0]);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> /**<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> * Invokes the method on every created objects with the specified<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> * arguments.<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> * @param arg the method arguments<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> * @return the result of the invocation, <code>null</code> for<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> * <code>void</code> method, the last result for instance containing<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> * several objects.<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> * @throws NoSuchMethodException if the callback method is not found<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> * @throws IllegalAccessException if the callback method cannot be called<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> * @throws InvocationTargetException if an error is thrown by the called method<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> */<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> public Object call(Object[] arg) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> if (m_methodObj == null) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> searchMethod();<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span><a name="line.225"></a> |
| <span class="sourceLineNo">226</span> if (m_isStatic) {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> return m_methodObj.invoke(null, arg);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> } else {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> // Two cases :<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> // - if instances already exists : call on each instances<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> // - if no instance exists : create an instance<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> if (m_manager.getPojoObjects() == null) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> return m_methodObj.invoke(m_manager.getPojoObject(), arg);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> } else {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> Object newObject = null;<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> for (int i = 0; i < m_manager.getPojoObjects().length; i++) {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> newObject = m_methodObj.invoke(m_manager.getPojoObjects()[i], arg);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> }<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> return newObject;<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span><a name="line.243"></a> |
| <span class="sourceLineNo">244</span> /**<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> * Invokes the method on the given object with the specified<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> * arguments.<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> * @param instance the instance on which call the method<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> * @param arg the argument array<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * @return the result of the invocation, <code>null</code> for<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * <code>void</code> method<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * @throws NoSuchMethodException if the callback method is not found<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> * @throws IllegalAccessException if the callback method cannot be called<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> * @throws InvocationTargetException if an error is thrown by the called method<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> */<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> public Object call(Object instance, Object[] arg) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> if (m_methodObj == null) {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> searchMethod();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> }<a name="line.258"></a> |
| <span class="sourceLineNo">259</span><a name="line.259"></a> |
| <span class="sourceLineNo">260</span> return m_methodObj.invoke(instance, arg);<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> }<a name="line.261"></a> |
| <span class="sourceLineNo">262</span><a name="line.262"></a> |
| <span class="sourceLineNo">263</span> /**<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> * Gets the method name.<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> * @return the method name<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> */<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> public String getMethod() {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> return m_method;<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> /**<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * Gets the method arguments.<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * @return the arguments.<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> */<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> public String[] getArguments() {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> return m_args;<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span>}<a name="line.278"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
