1 /*--------------------------------------------------------------------------
2 * Copyright 2007 utgenome.org
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 // UTGBMedaka Project
18 //
19 // WorkQueue.java
20 // Since: Aug 15, 2007
21 //
22 // $URL$
23 // $Author$
24 //--------------------------------------
25 package org.utgenome.gwt.utgb.client.util;
26
27 import java.util.ArrayList;
28
29 import com.google.gwt.user.client.Command;
30 import com.google.gwt.user.client.DeferredCommand;
31
32 public class WorkQueue implements Command {
33
34 ArrayList<Worker> _workerQueue = new ArrayList<Worker>();
35
36 public WorkQueue()
37 {
38
39 }
40
41 public void execute() {
42 if(_workerQueue.isEmpty())
43 return;
44
45 DeferredCommand.addCommand(nextWorker());
46
47 }
48
49 public boolean hasNextWorker()
50 {
51 return !_workerQueue.isEmpty();
52 }
53
54 public Worker nextWorker()
55 {
56 if(!_workerQueue.isEmpty())
57 {
58 return _workerQueue.remove(0);
59 }
60 else
61 return null;
62 }
63
64 public void addWorker(Worker worker)
65 {
66 _workerQueue.add(worker);
67 }
68
69
70
71 }
72
73
74
75