Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
And |
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1 | /* | |
2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
3 | * contributor license agreements. See the NOTICE file distributed with | |
4 | * this work for additional information regarding copyright ownership. | |
5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
6 | * (the "License"); you may not use this file except in compliance with | |
7 | * the License. You may obtain a copy of the License at | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | */ | |
17 | package org.apache.commons.functor.core.composite; | |
18 | ||
19 | import org.apache.commons.functor.Predicate; | |
20 | ||
21 | /** | |
22 | * {@link #test Tests} <code>true</code> iff | |
23 | * none of its children test <code>false</code>. | |
24 | * Note that by this definition, the "and" of | |
25 | * an empty collection of predicates tests <code>true</code>. | |
26 | * <p> | |
27 | * Note that although this class implements | |
28 | * {@link java.io.Serializable Serializable}, a given instance will | |
29 | * only be truly <code>Serializable</code> if all the | |
30 | * underlying functors are. Attempts to serialize | |
31 | * an instance whose delegates are not all | |
32 | * <code>Serializable</code> will result in an exception. | |
33 | * </p> | |
34 | * @version $Revision: 1156320 $ $Date: 2011-08-10 21:14:50 +0200 (Wed, 10 Aug 2011) $ | |
35 | * @author Rodney Waldhoff | |
36 | */ | |
37 | public final class And extends BasePredicateList { | |
38 | ||
39 | // constructor | |
40 | // ------------------------------------------------------------------------ | |
41 | ||
42 | /** | |
43 | * serialVersionUID declaration. | |
44 | */ | |
45 | private static final long serialVersionUID = -6053343095016685571L; | |
46 | ||
47 | /** | |
48 | * Create a new And. | |
49 | */ | |
50 | public And() { | |
51 | 8 | super(); |
52 | 8 | } |
53 | ||
54 | /** | |
55 | * Create a new And instance. | |
56 | * | |
57 | * @param predicates | |
58 | */ | |
59 | public And(Iterable<Predicate> predicates) { | |
60 | 0 | super(predicates); |
61 | 0 | } |
62 | ||
63 | /** | |
64 | * Create a new And instance. | |
65 | * | |
66 | * @param predicates | |
67 | */ | |
68 | public And(Predicate... predicates) { | |
69 | 46 | super(predicates); |
70 | 46 | } |
71 | ||
72 | // modifiers | |
73 | // ------------------------------------------------------------------------ | |
74 | /** | |
75 | * Add a Predicate. | |
76 | * @param p Predicate to add | |
77 | * @return this | |
78 | */ | |
79 | public And and(Predicate p) { | |
80 | 136 | super.addPredicate(p); |
81 | 136 | return this; |
82 | } | |
83 | ||
84 | // predicate interface | |
85 | // ------------------------------------------------------------------------ | |
86 | /** | |
87 | * {@inheritDoc} | |
88 | */ | |
89 | public boolean test() { | |
90 | 134 | for (Predicate p : getPredicateList()) { |
91 | 648 | if (!p.test()) { |
92 | 32 | return false; |
93 | } | |
94 | } | |
95 | 102 | return true; |
96 | } | |
97 | ||
98 | /** | |
99 | * {@inheritDoc} | |
100 | */ | |
101 | public boolean equals(Object that) { | |
102 | 140 | return that == this || (that instanceof And && equals((And) that)); |
103 | } | |
104 | ||
105 | /** | |
106 | * Learn whether a given And is equal to this. | |
107 | * @param that the And to test | |
108 | * @return boolean | |
109 | */ | |
110 | public boolean equals(And that) { | |
111 | 118 | return getPredicateListEquals(that); |
112 | } | |
113 | ||
114 | /** | |
115 | * {@inheritDoc} | |
116 | */ | |
117 | public int hashCode() { | |
118 | 154 | return "And".hashCode() ^ getPredicateListHashCode(); |
119 | } | |
120 | ||
121 | /** | |
122 | * {@inheritDoc} | |
123 | */ | |
124 | public String toString() { | |
125 | 146 | return "And<" + getPredicateListToString() + ">"; |
126 | } | |
127 | ||
128 | } |