src/share/classes/sun/reflect/annotation/AnnotationInvocationHandler.java

Print this page


   1 /*
   2  * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.reflect.annotation;
  27 
  28 import java.lang.annotation.*;
  29 import java.lang.reflect.*;
  30 import java.io.Serializable;
  31 import java.util.*;
  32 import java.lang.annotation.*;
  33 import java.security.AccessController;
  34 import java.security.PrivilegedAction;
  35 
  36 /**
  37  * InvocationHandler for dynamic proxy implementation of Annotation.
  38  *
  39  * @author  Josh Bloch
  40  * @since   1.5
  41  */
  42 class AnnotationInvocationHandler implements InvocationHandler, Serializable {

  43     private final Class<? extends Annotation> type;
  44     private final Map<String, Object> memberValues;
  45 
  46     AnnotationInvocationHandler(Class<? extends Annotation> type, Map<String, Object> memberValues) {
  47         this.type = type;
  48         this.memberValues = memberValues;
  49     }
  50 
  51     public Object invoke(Object proxy, Method method, Object[] args) {
  52         String member = method.getName();
  53         Class<?>[] paramTypes = method.getParameterTypes();
  54 
  55         // Handle Object and Annotation methods
  56         if (member.equals("equals") && paramTypes.length == 1 &&
  57             paramTypes[0] == Object.class)
  58             return equalsImpl(args[0]);
  59         assert paramTypes.length == 0;
  60         if (member.equals("toString"))
  61             return toStringImpl();
  62         if (member.equals("hashCode"))


   1 /*
   2  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.reflect.annotation;
  27 
  28 import java.lang.annotation.*;
  29 import java.lang.reflect.*;
  30 import java.io.Serializable;
  31 import java.util.*;
  32 import java.lang.annotation.*;
  33 import java.security.AccessController;
  34 import java.security.PrivilegedAction;
  35 
  36 /**
  37  * InvocationHandler for dynamic proxy implementation of Annotation.
  38  *
  39  * @author  Josh Bloch
  40  * @since   1.5
  41  */
  42 class AnnotationInvocationHandler implements InvocationHandler, Serializable {
  43     private static final long serialVersionUID = 6182022883658399397L;
  44     private final Class<? extends Annotation> type;
  45     private final Map<String, Object> memberValues;
  46 
  47     AnnotationInvocationHandler(Class<? extends Annotation> type, Map<String, Object> memberValues) {
  48         this.type = type;
  49         this.memberValues = memberValues;
  50     }
  51 
  52     public Object invoke(Object proxy, Method method, Object[] args) {
  53         String member = method.getName();
  54         Class<?>[] paramTypes = method.getParameterTypes();
  55 
  56         // Handle Object and Annotation methods
  57         if (member.equals("equals") && paramTypes.length == 1 &&
  58             paramTypes[0] == Object.class)
  59             return equalsImpl(args[0]);
  60         assert paramTypes.length == 0;
  61         if (member.equals("toString"))
  62             return toStringImpl();
  63         if (member.equals("hashCode"))