1 /***
2 * Copyright 2003-2010 Terracotta, Inc.
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 net.sf.ehcache.search.expression;
18
19 import java.util.Map;
20
21 import net.sf.ehcache.Element;
22 import net.sf.ehcache.search.attribute.AttributeExtractor;
23
24 /***
25 * A search criteria composed of the logical "not" (ie. negation) of another criteria
26 *
27 * @author teck
28 */
29 public class Not extends BaseCriteria {
30
31 private final Criteria c;
32
33 /***
34 * Construct a "not" criteria of the given criteria
35 *
36 * @param c the criteria to "not"
37 */
38 public Not(Criteria c) {
39 this.c = c;
40 }
41
42 /***
43 * @return criteria
44 */
45 public Criteria getCriteria() {
46 return c;
47 }
48
49 /***
50 * {@inheritDoc}
51 */
52 public boolean execute(Element e, Map<String, AttributeExtractor> attributeExtractors) {
53 return !c.execute(e, attributeExtractors);
54 }
55
56 }