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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: conditionalexpression.hxx,v $
* $Revision: 1.3 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef CONDITIONALEXPRESSION_HXX
#define CONDITIONALEXPRESSION_HXX
#include "dllapi.h"
/** === begin UNO includes === **/
/** === end UNO includes === **/
#include <rtl/ustring.hxx>
#include <boost/shared_ptr.hpp>
#include <map>
//........................................................................
namespace rptui
{
//........................................................................
// =============================================================================
// = ConditionalExpression
// =============================================================================
class REPORTDESIGN_DLLPUBLIC ConditionalExpression
{
private:
const ::rtl::OUString m_sPattern;
public:
ConditionalExpression( const sal_Char* _pAsciiPattern );
/** assembles an expression string from a field data source, and one or two operands
*/
::rtl::OUString assembleExpression( const ::rtl::OUString& _rFieldDataSource, const ::rtl::OUString& _rLHS, const ::rtl::OUString& _rRHS ) const;
/** matches the given expression string to the expression pattern represented by the object
@param _rExpression
the expression to match
@param _rFieldDataSource
the field data source
@param _out_rLHS
output parameter taking the left hand side operand, if successful
@param _out_rRHS
output parameter taking the right hand side operand, if successful
@return
<TRUE/> if and only if the expression string could be successfully matched to
the pattern.
*/
bool matchExpression( const ::rtl::OUString& _rExpression, const ::rtl::OUString& _rFieldDataSource, ::rtl::OUString& _out_rLHS, ::rtl::OUString& _out_rRHS ) const;
};
//========================================================================
//= ConditionType
//========================================================================
enum ConditionType
{
eFieldValueComparison = 0,
eExpression = 1
};
//========================================================================
//= ComparisonOperation
//========================================================================
enum ComparisonOperation
{
eBetween = 0,
eNotBetween = 1,
eEqualTo = 2,
eNotEqualTo = 3,
eGreaterThan = 4,
eLessThan = 5,
eGreaterOrEqual = 6,
eLessOrEqual = 7
};
typedef ::boost::shared_ptr< ConditionalExpression > PConditionalExpression;
typedef ::std::map< ComparisonOperation, PConditionalExpression > ConditionalExpressions;
// =============================================================================
// = ConditionalExpressionFactory
// =============================================================================
class REPORTDESIGN_DLLPUBLIC ConditionalExpressionFactory
{
public:
/// fills the given map with all ConditionalExpressions which we know
static size_t getKnownConditionalExpressions( ConditionalExpressions& _out_rCondExp );
private:
ConditionalExpressionFactory(); // never implemented
ConditionalExpressionFactory( const ConditionalExpressionFactory& ); // never implemented
ConditionalExpressionFactory& operator=( const ConditionalExpressionFactory& ); // never implemented
};
//........................................................................
} // namespace rptui
//........................................................................
#endif // CONDITIONALEXPRESSION_HXX
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