1 /*
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2002 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>;.
53 */
54 package net.sf.cglib.beans;
55
56 import java.lang.reflect.Constructor;
57 import java.lang.reflect.Method;
58 import java.lang.reflect.Modifier;
59 import java.util.*;
60 import net.sf.cglib.core.*;
61 import org.objectweb.asm.ClassVisitor;
62
63 /***
64 * @author Juozas Baliuka
65 */
66 abstract public class BulkBean
67 {
68 private static final BulkBeanKey KEY_FACTORY =
69 (BulkBeanKey)KeyFactory.create(BulkBeanKey.class, KeyFactory.CLASS_BY_NAME);
70
71 interface BulkBeanKey {
72 public Object newInstance(Class target, String[] getters, String[] setters, Class[] types);
73 }
74
75 protected Class target;
76 protected String[] getters, setters;
77 protected Class[] types;
78
79 protected BulkBean() { }
80
81 abstract public void getPropertyValues(Object bean, Object[] values);
82 abstract public void setPropertyValues(Object bean, Object[] values);
83
84 public Object[] getPropertyValues(Object bean) {
85 Object[] values = new Object[getters.length];
86 getPropertyValues(bean, values);
87 return values;
88 }
89
90 public Class[] getPropertyTypes() {
91 return (Class[])types.clone();
92 }
93
94 public String[] getGetters() {
95 return (String[])getters.clone();
96 }
97
98 public String[] getSetters() {
99 return (String[])setters.clone();
100 }
101
102 public static BulkBean create(Class target, String[] getters, String[] setters, Class[] types) {
103 Generator gen = new Generator();
104 gen.setTarget(target);
105 gen.setGetters(getters);
106 gen.setSetters(setters);
107 gen.setTypes(types);
108 return gen.create();
109 }
110
111 public static class Generator extends AbstractClassGenerator {
112 private static final Source SOURCE = new Source(BulkBean.class.getName());
113 private Class target;
114 private String[] getters;
115 private String[] setters;
116 private Class[] types;
117
118 public Generator() {
119 super(SOURCE);
120 }
121
122 public void setTarget(Class target) {
123 this.target = target;
124 }
125
126 public void setGetters(String[] getters) {
127 this.getters = getters;
128 }
129
130 public void setSetters(String[] setters) {
131 this.setters = setters;
132 }
133
134 public void setTypes(Class[] types) {
135 this.types = types;
136 }
137
138 protected ClassLoader getDefaultClassLoader() {
139 return target.getClassLoader();
140 }
141
142 public BulkBean create() {
143 setNamePrefix(target.getName());
144 Object key = KEY_FACTORY.newInstance(target, getters, setters, types);
145 return (BulkBean)super.create(key);
146 }
147
148 public void generateClass(ClassVisitor v) throws Exception {
149 new BulkBeanEmitter(v, getClassName(), target, getters, setters, types);
150 }
151
152 protected Object firstInstance(Class type) {
153 BulkBean instance = (BulkBean)ReflectUtils.newInstance(type);
154 instance.target = target;
155
156 int length = getters.length;
157 instance.getters = new String[length];
158 System.arraycopy(getters, 0, instance.getters, 0, length);
159
160 instance.setters = new String[length];
161 System.arraycopy(setters, 0, instance.setters, 0, length);
162
163 instance.types = new Class[types.length];
164 System.arraycopy(types, 0, instance.types, 0, types.length);
165
166 return instance;
167 }
168
169 protected Object nextInstance(Object instance) {
170 return instance;
171 }
172 }
173 }
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