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1
87 package org.codehaus.loom.components.application;
88
89 import java.lang.reflect.InvocationHandler  ;
90 import java.lang.reflect.InvocationTargetException ;
91 import java.lang.reflect.Method ;
92 import java.lang.reflect.Proxy ;
93
94
112 final class BlockInvocationHandler
113 implements InvocationHandler
114 {
115 private transient Object m_object;
116 private transient Object m_proxy;
117
118
125 BlockInvocationHandler( final Object object, final Class [] interfaces )
126 {
127 final ClassLoader classLoader = object.getClass().getClassLoader();
128
129 m_object = object;
130 m_proxy = Proxy.newProxyInstance( classLoader, interfaces, this );
131 }
132
133
136 public void invalidate()
137 {
138 m_object = null;
139 m_proxy = null;
140 }
141
142
147 public Object getProxy()
148 {
149 return m_proxy;
150 }
151
152
162 public Object invoke( final Object proxy,
163 final Method method,
164 final Object [] args )
165 throws Throwable
166 {
167 if( null != m_object )
168 {
169 try
170 {
171 return method.invoke( m_object, args );
172 }
173 catch( final InvocationTargetException ite )
174 {
175 throw ite.getTargetException();
176 }
177 }
178 else
179 {
180 throw new IllegalStateException ( "Using a stale object reference "
181 + "to call a disposed Block." );
182 }
183 }
184 }
185 |
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