BasicAggregateOperator


1   /**
2    * MEDOR: Middleware Enabling Distributed Object Requests
3    *
4    * Copyright (C) 2001-2003 France Telecom R&D
5    * Contact: alexandre.lefebvre@rd.francetelecom.com
6    *
7    * This library is free software; you can redistribute it and/or
8    * modify it under the terms of the GNU Lesser General Public
9    * License as published by the Free Software Foundation; either
10   * version 2.1 of the License, or (at your option) any later version.
11   *
12   * This library is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this library; if not, write to the Free Software
19   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20   *
21   * Initial developers: M. Alia, A. Lefebvre
22   */
23  
24  package org.objectweb.medor.filter.lib;
25  
26  import org.objectweb.medor.filter.api.AggregateOperator;
27  import org.objectweb.medor.expression.lib.BasicUnaryOperator;
28  import org.objectweb.medor.expression.api.Expression;
29  import org.objectweb.jorm.type.api.PType;
30  
31  import java.util.Map  ;
32  
33  /**
34   *
35   * @author Sebastien Chassande-Barrioz
36   */
37  public abstract class BasicAggregateOperator
38      extends BasicUnaryOperator
39      implements AggregateOperator {
40  
41      protected boolean distinct = false;
42  
43      public BasicAggregateOperator() {
44      }
45  
46      public BasicAggregateOperator(Expression e) {
47          super(e);
48      }
49  
50      public BasicAggregateOperator(PType type) {
51          super(type);
52      }
53  
54      public BasicAggregateOperator(PType type, Expression e) {
55          super(type, e);
56      }
57  
58      public BasicAggregateOperator(Expression e, boolean distinct) {
59          super(e);
60          this.distinct = distinct;
61      }
62  
63      public BasicAggregateOperator(PType type, Expression e, boolean distinct) {
64          super(type, e);
65          this.distinct = distinct;
66      }
67  
68      public void setDistinct(boolean distinct) {
69          this.distinct = distinct;
70      }
71  
72      public boolean getDistinct() {
73          return distinct;
74      }
75  
76      public Object   clone(Object   clone, Map   obj2clone) throws CloneNotSupportedException   {
77          clone = super.clone(clone, obj2clone);
78          ((BasicAggregateOperator) clone).distinct = distinct;
79          return clone;
80      }
81  }
82
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