KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > net > sf > retrotranslator > runtime > java > lang > reflect > _Field


1 /***
2  * Retrotranslator: a Java bytecode transformer that translates Java classes
3  * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
4  *
5  * Copyright (c) 2005 - 2007 Taras Puchko
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the copyright holders nor the names of its
17  * contributors may be used to endorse or promote products derived from
18  * this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30  * THE POSSIBILITY OF SUCH DAMAGE.
31  */

32 package net.sf.retrotranslator.runtime.java.lang.reflect;
33
34 import java.lang.reflect.*;
35 import net.sf.retrotranslator.runtime.asm.Opcodes;
36 import net.sf.retrotranslator.runtime.impl.*;
37 import net.sf.retrotranslator.runtime.java.lang.annotation.Annotation_;
38
39 /**
40  * @author Taras Puchko
41  */

42 public class _Field {
43
44     public static Annotation_ getAnnotation(Field field, Class JavaDoc annotationType) {
45         return FieldDescriptor.getInstance(field).getAnnotation(annotationType);
46     }
47
48     public static Annotation_[] getAnnotations(Field field) {
49         return FieldDescriptor.getInstance(field).getAnnotations();
50     }
51
52     public static Annotation_[] getDeclaredAnnotations(Field field) {
53         return FieldDescriptor.getInstance(field).getDeclaredAnnotations();
54     }
55
56     public static Type getGenericType(Field field) {
57         Type type = FieldDescriptor.getInstance(field).getGenericType();
58         return type != null ? type : field.getType();
59     }
60
61     public static boolean isAnnotationPresent(Field field, Class JavaDoc annotationType) {
62         return FieldDescriptor.getInstance(field).isAnnotationPresent(annotationType);
63     }
64
65     public static boolean isEnumConstant(Field field) {
66         return FieldDescriptor.getInstance(field).isAccess(Opcodes.ACC_ENUM);
67     }
68
69     public static boolean isSynthetic(Field field) {
70         return FieldDescriptor.getInstance(field).isAccess(Opcodes.ACC_SYNTHETIC);
71     }
72
73     public static String JavaDoc toGenericString(Field field) {
74         StringBuilder JavaDoc builder = new StringBuilder JavaDoc();
75         if (field.getModifiers() != 0) {
76             builder.append(Modifier.toString(field.getModifiers())).append(' ');
77         }
78         builder.append(RuntimeTools.getString(getGenericType(field))).append(' ');
79         builder.append(RuntimeTools.getString(field.getDeclaringClass())).append('.');
80         return builder.append(field.getName()).toString();
81     }
82 }
83
Popular Tags