1 /*
2 * Copyright 2004-2009 the original author or authors.
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
17 package org.springmodules.validation.util.condition.collection;
18
19 import java.lang.reflect.Array;
20 import java.util.Collection;
21 import java.util.Iterator;
22
23 import org.springmodules.validation.util.condition.Condition;
24
25 /**
26 * An {@link AbstractCollectionCondition} implementation that checks whether none of the elements in a collection
27 * or array adhere to a specific condition.
28 *
29 * @author Uri Boness
30 */
31 public class NoneCollectionCondition extends AbstractCollectionElementCondition {
32
33 /**
34 * Constructs a new NoneCollectionCondition with a given condition.
35 *
36 * @param elementCondition The condition to be checked on the collection/array elements.
37 */
38 public NoneCollectionCondition(Condition elementCondition) {
39 super(elementCondition);
40 }
41
42 /**
43 * Checks whether none of the object in the given array adheres to the associated condition.
44 *
45 * @param array The array to be checked.
46 * @return <code>true</code> none of the objects in the given array adheres to the associated condition,
47 * <code>false</code> otherwise.
48 */
49 protected boolean checkArray(Object array) {
50 for (int i = 0; i < Array.getLength(array); i++) {
51 if (getElementCondition().check(Array.get(array, i))) {
52 return false;
53 }
54 }
55 return true;
56 }
57
58 /**
59 * Checks whether none of the elements in the given collection adheres to the associated condition.
60 *
61 * @param collection The collection to be checked.
62 * @return <code>true</code> if none of the elements in the given collection adheres to the associated condition,
63 * <code>false</code> otherwise.
64 */
65 protected boolean checkCollection(Collection collection) {
66 for (Iterator iter = collection.iterator(); iter.hasNext();) {
67 if (getElementCondition().check(iter.next())) {
68 return false;
69 }
70 }
71 return true;
72 }
73
74 }