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.aggregator;
18
19 import net.sf.ehcache.search.Attribute;
20
21
22 /***
23 * Counts the number of results
24 *
25 * @author Greg Luck
26 */
27 public class Count implements AggregatorInstance<Integer> {
28
29 private int count;
30
31 /***
32 * {@inheritDoc}
33 */
34 public void accept(Object input) throws AggregatorException {
35 count++;
36 }
37
38 /***
39 * {@inheritDoc}
40 */
41 public Integer aggregateResult() {
42 return count;
43 }
44
45 /***
46 * {@inheritDoc}
47 */
48 public Attribute<?> getAttribute() {
49 return null;
50 }
51
52 }