1 /*
2 * Copyright (C) 2007-2012 Argeo GmbH
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 package org.argeo.slc.core.execution.tasks;
17
18 import java.util.ArrayList;
19 import java.util.List;
20
21 import org.springframework.beans.factory.FactoryBean;
22
23 /** Merge the provided lists in one single list, in the order provided. */
24 public class MergedLists implements FactoryBean<List<Object>> {
25 private List<List<Object>> lists = new ArrayList<List<Object>>();
26
27 public void setLists(List<List<Object>> lists) {
28 this.lists = lists;
29 }
30
31 public List<Object> getObject() throws Exception {
32 List<Object> merged = new ArrayList<Object>();
33 for (List<Object> lst : lists) {
34 merged.addAll(lst);
35 }
36 return merged;
37 }
38
39 public Class<?> getObjectType() {
40 return List.class;
41 }
42
43 public boolean isSingleton() {
44 return false;
45 }
46
47 }