casacore::TableExprGroupKey Class Reference

Class representing a key in the groupby clause. More...

#include <ExprGroup.h>

List of all members.

Public Member Functions
	TableExprGroupKey (TableExprNodeRep::NodeDataType dtype)
	Construct for a given data type.
TableExprNodeRep::NodeDataType	dataType () const
	Get the data type.
void	set (Bool v)
	Set the key's value.
void	set (Int64 v)
void	set (Double v)
void	set (const String &v)
bool	operator== (const TableExprGroupKey &) const
	Compare this and that key.
bool	operator< (const TableExprGroupKey &) const
Private Attributes
TableExprNodeRep::NodeDataType	itsDT
Bool	itsBool
Int64	itsInt64
Double	itsDouble
String	itsString

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Detailed Description

Class representing a key in the groupby clause.

Intended use:

Internal

Review Status

Test programs:

tTableGram

Synopsis

The GROUPBY clause consists of one or more keys, each being a scalar TaQL expression with an arbitrary data type. This class contains the value of a key for a particular table row. It is part of a TableExprGroupKeySet object.

Definition at line 52 of file ExprGroup.h.

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Constructor & Destructor Documentation

casacore::TableExprGroupKey::TableExprGroupKey

(

TableExprNodeRep::NodeDataType

dtype

)

[inline, explicit]

Construct for a given data type.

Definition at line 56 of file ExprGroup.h.

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Member Function Documentation

TableExprNodeRep::NodeDataType casacore::TableExprGroupKey::dataType

(

)

const [inline]

Get the data type.

Definition at line 61 of file ExprGroup.h.

References itsDT.

bool casacore::TableExprGroupKey::operator<

(

const TableExprGroupKey &

)

const

bool casacore::TableExprGroupKey::operator==

(

const TableExprGroupKey &

)

const

Compare this and that key.

void casacore::TableExprGroupKey::set

(

const String &

v

)

[inline]

Definition at line 72 of file ExprGroup.h.

References itsString.

void casacore::TableExprGroupKey::set

(

Double

v

)

[inline]

Definition at line 70 of file ExprGroup.h.

References itsDouble.

void casacore::TableExprGroupKey::set

(

Int64

v

)

[inline]

Definition at line 68 of file ExprGroup.h.

References itsInt64.

void casacore::TableExprGroupKey::set

(

Bool

v

)

[inline]

Set the key's value.

Definition at line 66 of file ExprGroup.h.

References itsBool.

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Member Data Documentation

Bool casacore::TableExprGroupKey::itsBool [private]

Definition at line 84 of file ExprGroup.h.

Referenced by set().

Double casacore::TableExprGroupKey::itsDouble [private]

Definition at line 86 of file ExprGroup.h.

Referenced by set().

TableExprNodeRep::NodeDataType casacore::TableExprGroupKey::itsDT [private]

Definition at line 83 of file ExprGroup.h.

Referenced by dataType().

Int64 casacore::TableExprGroupKey::itsInt64 [private]

Definition at line 85 of file ExprGroup.h.

Referenced by set().

String casacore::TableExprGroupKey::itsString [private]

Definition at line 87 of file ExprGroup.h.

Referenced by set().

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The documentation for this class was generated from the following file:

• casacore/tables/TaQL/ExprGroup.h