1 /* Copyright 2004 Brian McCallister
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 package org.skife.lucene.graph.helper;
16
17 import org.skife.lucene.graph.helper.Beer;
18
19 import java.util.HashSet;
20 import java.util.Set;
21
22 public class Cooler implements Identifiable
23 {
24 private final Set beers;
25 private final Integer id;
26
27 public Cooler(final int id)
28 {
29 this.id = new Integer(id);
30 this.beers = new HashSet();
31 }
32
33 public Set getBeers()
34 {
35 return beers;
36 }
37
38 public void stock(final Beer beer)
39 {
40 this.beers.add(beer);
41 }
42
43 public Beer grab()
44 {
45 if (beers.size() > 0) return (Beer) beers.iterator().next();
46 else throw new RuntimeException("The world has ended!");
47 }
48
49 public Integer getIdentity()
50 {
51 return id;
52 }
53 }