1 /*
2 * Scope: a generic MVC framework.
3 * Copyright (c) 2000-2002, The Scope team
4 * All rights reserved.
5 *
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 * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * Neither the name "Scope" nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
27 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
28 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
29 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 *
36 * $Id: IntIndexSelector.java,v 1.6 2002/09/11 19:12:29 ludovicc Exp $
37 */
38 package org.scopemvc.core;
39
40
41 /***
42 * <P>
43 *
44 * An implementation of {@link Selector} that identifies a property by its
45 * <CODE>int</CODE> index within the parent model object. This is used to access
46 * properties in java.util.List and Object[]. </P> <P>
47 *
48 * Created by {@link Selector#fromInt(int)} or {@link
49 * Selector#fromString(String)}. </P>
50 *
51 * @author <A HREF="mailto:smeyfroi@users.sourceforge.net">Steve Meyfroidt</A>
52 * @created 05 August 2002
53 * @version $Revision: 1.6 $ $Date: 2002/09/11 19:12:29 $
54 */
55 public final class IntIndexSelector extends Selector {
56
57 /***
58 * The <CODE>int</CODE> index of the selected property.
59 */
60 private int index;
61
62
63 /***
64 * Package private for factory to create.
65 *
66 * @param inIndex The index of the property to select
67 */
68 IntIndexSelector(int inIndex) {
69 setIndex(inIndex);
70 }
71
72
73 /***
74 * Gets the index of the property in the list or Object[]
75 *
76 * @return The index value
77 */
78 public int getIndex() {
79 return index;
80 }
81
82
83 /***
84 * Gets the name of the selector
85 *
86 * @return The name value
87 */
88 public String getName() {
89 return Integer.toString(getIndex());
90 }
91
92
93 /***
94 * Sets the index
95 *
96 * @param inIndex The new index value
97 */
98 public void setIndex(int inIndex) {
99 index = inIndex;
100 }
101
102
103 /***
104 * Returns the hashCode
105 *
106 * @return the hashCode
107 */
108 public int hashCode() {
109 return getIndex();
110 }
111
112
113 /***
114 * Creates a shallow copy of this selector
115 *
116 * @return a shallow copy of this selector
117 */
118 protected Selector getShallowCopy() {
119 return Selector.fromInt(index);
120 }
121
122
123 /***
124 * Returns true if this Selector is equals to the given Selector when
125 * omitting the chained Selectors
126 *
127 * @param inSelector Another Selector to test against
128 * @return true if we have shallow equality
129 */
130 protected boolean shallowEquals(Selector inSelector) {
131 if (!(inSelector instanceof IntIndexSelector)) {
132 return false;
133 }
134 return getIndex() == ((IntIndexSelector) inSelector).getIndex();
135 }
136 }
137
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