KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > commons > jxpath > ri > model > dynabeans > DynaBeanPointer


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.commons.jxpath.ri.model.dynabeans;
17
18 import java.util.Locale JavaDoc;
19
20 import org.apache.commons.beanutils.DynaBean;
21 import org.apache.commons.jxpath.ri.QName;
22 import org.apache.commons.jxpath.ri.model.NodePointer;
23 import org.apache.commons.jxpath.ri.model.beans.PropertyOwnerPointer;
24 import org.apache.commons.jxpath.ri.model.beans.PropertyPointer;
25
26
27 /**
28  * A Pointer that points to a DynaBean.
29  *
30  * @author Dmitri Plotnikov
31  * @version $Revision: 1.6 $ $Date: 2004/02/29 14:17:40 $
32  */
33 public class DynaBeanPointer extends PropertyOwnerPointer {
34     private QName name;
35     private DynaBean dynaBean;
36
37     public DynaBeanPointer(QName name, DynaBean dynaBean, Locale JavaDoc locale) {
38         super(null, locale);
39         this.name = name;
40         this.dynaBean = dynaBean;
41     }
42
43     /**
44      * @param name is the name given to the first node
45      */
46     public DynaBeanPointer(NodePointer parent, QName name, DynaBean dynaBean) {
47         super(parent);
48         this.name = name;
49         this.dynaBean = dynaBean;
50     }
51
52     public PropertyPointer getPropertyPointer() {
53         return new DynaBeanPropertyPointer(this, dynaBean);
54     }
55
56     public QName getName() {
57         return name;
58     }
59
60     /**
61      * Returns the bean itself
62      */
63     public Object JavaDoc getBaseValue() {
64         return dynaBean;
65     }
66
67     public Object JavaDoc getImmediateNode() {
68         return dynaBean;
69     }
70
71     public boolean isCollection() {
72         return false;
73     }
74
75     /**
76      * Returns 1.
77      */
78     public int getLength() {
79         return 1;
80     }
81
82     public boolean isLeaf() {
83         return false;
84     }
85
86     public int hashCode() {
87         return name == null ? 0 : name.hashCode();
88     }
89
90     public boolean equals(Object JavaDoc object) {
91         if (object == this) {
92             return true;
93         }
94
95         if (!(object instanceof DynaBeanPointer)) {
96             return false;
97         }
98
99         DynaBeanPointer other = (DynaBeanPointer) object;
100         if (parent != other.parent) {
101             if (parent == null || !parent.equals(other.parent)) {
102                 return false;
103             }
104         }
105
106         if ((name == null && other.name != null)
107             || (name != null && !name.equals(other.name))) {
108             return false;
109         }
110
111         int iThis = (index == WHOLE_COLLECTION ? 0 : index);
112         int iOther = (other.index == WHOLE_COLLECTION ? 0 : other.index);
113         if (iThis != iOther) {
114             return false;
115         }
116
117         return dynaBean == other.dynaBean;
118     }
119
120     /**
121      * If there's a parent - parent's path, otherwise "/".
122      */
123     public String JavaDoc asPath() {
124         if (parent != null) {
125             return super.asPath();
126         }
127         return "/";
128     }
129 }
Popular Tags