01: /* ====================================================================
02: The Jicarilla Software License
03:
04: Copyright (c) 2003 Leo Simons.
05: All rights reserved.
06:
07: Permission is hereby granted, free of charge, to any person obtaining
08: a copy of this software and associated documentation files (the
09: "Software"), to deal in the Software without restriction, including
10: without limitation the rights to use, copy, modify, merge, publish,
11: distribute, sublicense, and/or sell copies of the Software, and to
12: permit persons to whom the Software is furnished to do so, subject to
13: the following conditions:
14:
15: The above copyright notice and this permission notice shall be
16: included in all copies or substantial portions of the Software.
17:
18: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21: IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22: CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23: TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24: SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25: ==================================================================== */
26: package org.jicarilla.lang;
27:
28: import java.util.Arrays;
29:
30: /**
31: *
32: *
33: * @author <a href="lsimons at jicarilla dot org">Leo Simons</a>
34: * @version $Id: AndSelector.java,v 1.1 2004/03/23 13:37:57 lsimons Exp $
35: */
36: public class AndSelector implements CriterionExposingSelector {
37: protected final Selector[] m_selectors;
38:
39: public AndSelector(final Selector[] selectors) {
40: Assert.assertNotNull("selectors argument may not be null",
41: selectors);
42: m_selectors = selectors;
43: }
44:
45: public boolean select(final Object object) {
46: final int length = m_selectors.length;
47: if (length == 0)
48: return false;
49:
50: for (int i = 0; i < length; i++) {
51: final Selector selector = m_selectors[i];
52: if (!selector.select(object))
53: return false;
54: }
55: return true;
56: }
57:
58: public Object getCriterion() {
59: return m_selectors;
60: }
61:
62: public boolean equals(final Object o) {
63: if (o == this )
64: return true;
65:
66: if (!(o instanceof AndSelector))
67: return false;
68:
69: final Object criterion = ((AndSelector) o).getCriterion();
70:
71: if (!(criterion instanceof Selector[]))
72: return false;
73: final Selector[] selectors = (Selector[]) criterion;
74:
75: return Arrays.equals(m_selectors, selectors);
76: }
77:
78: public int hashCode() {
79: if (getCriterion() == null)
80: return 120;
81: else {
82: int code = 125;
83: for (int i = 0; i < m_selectors.length; i++) {
84: Selector selector = m_selectors[i];
85: if (selector == null)
86: code += 1;
87: else
88: code += selector.hashCode();
89: }
90: return code;
91: }
92: }
93: }
|