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LogFilterExpr.h
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//# LogFilterExpr.h: Class to deal with a TaQL expression to filter messages
//# Copyright (C) 2000
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This program is free software; you can redistribute it and/or modify it
//# under the terms of the GNU General Public License as published by the Free
//# Software Foundation; either version 2 of the License, or (at your option)
//# any later version.
//#
//# This program 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 General Public License for
//# more details.
//#
//# You should have received a copy of the GNU General Public License along
//# with this program; if not, write to the Free Software Foundation, Inc.,
//# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: casa-feedback@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
#ifndef TABLES_LOGFILTEREXPR_H
#define TABLES_LOGFILTEREXPR_H
//# Includes
#include <casacore/casa/aips.h>
#include <casacore/tables/TaQL/TableExprData.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
//# Forward Declarations
class TableExprNode;
class LogMessage;
// <summary>
// Class to deal with a TaQL expression to filter messages.
// </summary>
// <reviewed reviewer="UNKNOWN" date="before2004/08/25" tests="" demos="">
// </reviewed>
// This program tests the class TableExprData.
// This example shows how a data set consisting of two vectors
// of scalars can be used.
class LogFilterExpr : public TableExprData
{
public:
// Construct it from an expression which gets parsed.
LogFilterExpr (const String& expr);
// Copy constructor (copy semantics).
LogFilterExpr (const LogFilterExpr&);
virtual ~LogFilterExpr();
// Assignment (copy semantics).
LogFilterExpr& operator= (const LogFilterExpr&);
// Does this message match the expression?
Bool matches (const LogMessage& message);
// Get the data.
// <group>
virtual Double getDouble (const Block<Int>& fieldNrs) const;
virtual String getString (const Block<Int>& fieldNrs) const;
// </group>
// Get the data type of the various values.
virtual DataType dataType (const Block<Int>& fieldNrs) const;
private:
TableExprNode* itsExpr;
const LogMessage* itsMessage;
};
} //# NAMESPACE CASACORE - END
#endif
casacore::Block
Definition Block.h:140
casacore::LogFilterExpr::~LogFilterExpr
virtual ~LogFilterExpr()
casacore::LogFilterExpr::LogFilterExpr
LogFilterExpr(const LogFilterExpr &)
Copy constructor (copy semantics).
casacore::LogFilterExpr::operator=
LogFilterExpr & operator=(const LogFilterExpr &)
Assignment (copy semantics).
casacore::LogFilterExpr::getDouble
virtual Double getDouble(const Block< Int > &fieldNrs) const
Get the data.
casacore::LogFilterExpr::getString
virtual String getString(const Block< Int > &fieldNrs) const
casacore::LogFilterExpr::matches
Bool matches(const LogMessage &message)
Does this message match the expression?
casacore::LogFilterExpr::LogFilterExpr
LogFilterExpr(const String &expr)
Construct it from an expression which gets parsed.
casacore::LogFilterExpr::dataType
virtual DataType dataType(const Block< Int > &fieldNrs) const
Get the data type of the various values.
casacore::LogFilterExpr::itsMessage
const LogMessage * itsMessage
Definition LogFilterExpr.h:80
casacore::LogFilterExpr::itsExpr
TableExprNode * itsExpr
Definition LogFilterExpr.h:79
casacore::LogMessage
Definition LogMessage.h:98
casacore::String
String: the storage and methods of handling collections of characters.
Definition String.h:223
casacore::TableExprData::TableExprData
TableExprData()
Construct it from a row number.
Definition TableExprData.h:203
casacore::TableExprNode
Definition ExprNode.h:154
casacore
this file contains all the compiler specific defines
Definition mainpage.dox:28
casacore::Bool
bool Bool
Define the standard types used by Casacore.
Definition aipstype.h:40
casacore::Double
double Double
Definition aipstype.h:53