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Java > Open Source Codes > org > xquark > mediator > plan > OperatorRunnable


1 /*
2  * This file belongs to the XQuark distribution.
3  * Copyright (C) 2004 XQuark Group.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307.
18  * You can also get it at http://www.gnu.org/licenses/lgpl.html
19  *
20  * For more information on this software, see http://www.xquark.org.
21  */
22
23 package org.xquark.mediator.plan;
24
25 import org.xquark.mediator.runtime.MediatorException;
26
27 public class OperatorRunnable implements Runnable JavaDoc {
28
29     protected ResultSet resultset = null;
30     protected Operator operator = null;
31     protected DynamicContext ctx = null;
32     protected MediatorException me = null;
33
34     public OperatorRunnable(Operator operator, DynamicContext ctx) {
35         this.operator = operator;
36         this.ctx = ctx;
37     }
38     
39     public ResultSet getResultSet() throws MediatorException{
40         if (me != null) {
41             throw me;
42         }
43         return resultset;
44     }
45
46     public void setResultSet(ResultSet resultset) {
47         this.resultset = resultset;
48     }
49
50     public Operator getOperator() {
51         return operator;
52     }
53     
54     public DynamicContext getContext() {
55         return ctx;
56     }
57
58
59     public void run() {
60         try {
61             me = null;
62             resultset = operator.executeQuery(ctx);
63         } catch (MediatorException me) {
64             this.me = me;
65         }
66     }
67
68
69 }
70
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