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1
9 package org.jboss.portal.common.util;
10
11 import java.lang.reflect.Constructor  ;
12 import java.lang.reflect.InvocationHandler ;
13 import java.lang.reflect.InvocationTargetException ;
14 import java.lang.reflect.Method ;
15
16
22 public class ProxyInfo
23 {
24
25 private static final Class [] EMPTY_SIGNATURE = new Class [0];
26 private static final Class [] EQUALS_SIGNATURE = new Class []{Object .class};
27 private static final Class [] INVOCATION_HANDLER_SIGNATURE = new Class []{InvocationHandler .class};
28
29
30 private final Constructor ctor;
31
32
33 private final Method toString;
34
35
36 private final Method hashCode;
37
38
39 private final Method equals;
40
41 public ProxyInfo(Class clazz) throws Exception
42 {
43 this.ctor = clazz.getConstructor(INVOCATION_HANDLER_SIGNATURE);
44
45 toString = Object .class.getMethod("toString", EMPTY_SIGNATURE);
47 hashCode = Object .class.getMethod("hashCode", EMPTY_SIGNATURE);
48 equals = Object .class.getMethod("equals", EQUALS_SIGNATURE);
49 }
50
51
57 public Object instantiate(InvocationHandler handler) throws IllegalAccessException , InvocationTargetException , InstantiationException
58 {
59 return ctor.newInstance(new Object []{handler});
60 }
61
62 public Method getToString()
63 {
64 return toString;
65 }
66
67 public Method getHashCode()
68 {
69 return hashCode;
70 }
71
72 public Method getEquals()
73 {
74 return equals;
75 }
76 }
77 |
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