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JoinConditionOn.cpp
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1 /* Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.
2 
3  This file is part of the TerraLib - a Framework for building GIS enabled applications.
4 
5  TerraLib is free software: you can redistribute it and/or modify
6  it under the terms of the GNU Lesser General Public License as published by
7  the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  TerraLib 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
13  GNU Lesser General Public License for more details.
14 
15  You should have received a copy of the GNU Lesser General Public License
16  along with TerraLib. See COPYING. If not, write to
17  TerraLib Team at <terralib-team@terralib.org>.
18  */
19 
20 /*!
21  \file terralib/dataaccess/query/JoinConditionOn.cpp
22 
23  \brief JoinConditionOn is a boolean expression and it specifies which items in a join are considered to match.
24 */
25 
26 // TerraLib
27 #include "Expression.h"
28 #include "JoinConditionOn.h"
29 
31  : m_condition(e)
32 {
33 }
34 
36  : m_condition(0)
37 {
38  m_condition.reset(e.clone());
39 }
40 
42  : m_condition(0)
43 {
44  m_condition.reset(rhs.m_condition.get() ? rhs.m_condition->clone() : 0);
45 }
46 
48 {
49 }
50 
51 
53 {
54  if(this != &rhs)
55  {
56  m_condition.reset(rhs.m_condition.get() ? rhs.m_condition->clone() : 0);
57  }
58 
59  return *this;
60 }
61 
63 {
64  return new JoinConditionOn(*this);
65 }
66 
68 {
69  m_condition.reset(c);
70 }
71 
73 {
74  return m_condition.get();
75 }
76 
std::auto_ptr< Expression > m_condition
The join expression.
JoinCondition * clone() const
It creates a new copy of this JoinCondition.
Expression * getCondition() const
It returns a pointer to a join condition.
This is an abstract class that models a query expression.
Definition: Expression.h:47
TE_DEFINE_VISITABLE JoinConditionOn(Expression *e)
Constructor.
JoinConditionOn is a boolean expression and it specifies which items in a join are considered to matc...
A condition to be used in a Join clause.
Definition: JoinCondition.h:44
This is an abstract class that models a query expression.
~JoinConditionOn()
Destructor.
JoinConditionOn is a boolean expression and it specifies which items in a join are considered to matc...
virtual Expression * clone() const =0
It creates a new copy of this expression.
void setCondition(Expression *c)
It sets the join condition expression.
JoinConditionOn & operator=(const JoinConditionOn &rhs)