77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004-2009, University in Hagen, Faculty of Mathematics
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and Computer Science, Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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1 MObjects.cpp
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*/
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#include "AlmostEqual.h"
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#include "MObjects.h"
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namespace ColumnMovingAlgebra
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{
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/*
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1.1 Implementation of virtual functions for ~MObjects~
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The crel algebra requires all attribute arrays to implement eight
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different comparison functions. To ease the implementation of our
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attribute arrays we provide six of the eight required functions in
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this base class. They are generic and call the two left functions,
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which still have to be implemented by attribute arrays derived
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from this class.
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*/
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int MObjects::CompareAlmost(uint64_t rowA, const CRelAlgebra::AttrArray
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&arrayB, uint64_t rowB) const
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{
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return Compare(rowA, arrayB, rowB);
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}
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int MObjects::CompareAlmost(uint64_t row, Attribute &value) const
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{
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return Compare(row, value);
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}
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bool MObjects::Equals(uint64_t rowA, const CRelAlgebra::AttrArray &arrayB,
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uint64_t rowB) const
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{
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return Compare(rowA, arrayB, rowB) == 0;
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}
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bool MObjects::Equals(uint64_t row, Attribute &value) const
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{
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return Compare(row, value) == 0;
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}
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bool MObjects::EqualsAlmost(uint64_t rowA,
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const CRelAlgebra::AttrArray &arrayB, uint64_t rowB) const
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{
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return Compare(rowA, arrayB, rowB) == 0;
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}
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bool MObjects::EqualsAlmost(uint64_t row, Attribute &value) const
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{
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return Compare(row, value) == 0;
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}
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}
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