casa::TableExprNodeColumn Class Reference
[Tables_internal_classes]

#include <ExprDerNode.h>

Inheritance diagram for casa::TableExprNodeColumn:

[legend]Collaboration diagram for casa::TableExprNodeColumn:

[legend]List of all members.

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Detailed Description

Scalar column in table select expression tree.

Intended use:

Internal

Review Status

Reviewed By:

UNKNOWN

Date Reviewed:

before2004/08/25

Prerequisite

• TableExprNode

Synopsis

This class represents a scalar column in a table select expression tree. When the select expression gets evaluated, the value of the given row in the column is used.

Definition at line 265 of file ExprDerNode.h.

Public Member Functions
	TableExprNodeColumn (const Table &, const String &columnName)
	~TableExprNodeColumn ()
virtual void	replaceTablePtr (const Table &)
	Replace the Table pointer in this node.
Bool	getBool (const TableExprId &id)
	Get a scalar value for this node in the given row.
Double	getDouble (const TableExprId &id)
DComplex	getDComplex (const TableExprId &id)
String	getString (const TableExprId &id)
const ROTableColumn &	getColumn () const
Bool	getColumnDataType (DataType &) const
	Get the data type of this scalar column.
Array< Bool >	getColumnBool ()
	Get the value of the expression evaluated for the entire column.
Array< uChar >	getColumnuChar ()
Array< Short >	getColumnShort ()
Array< uShort >	getColumnuShort ()
Array< Int >	getColumnInt ()
Array< uInt >	getColumnuInt ()
Array< Float >	getColumnFloat ()
Array< Double >	getColumnDouble ()
Array< Complex >	getColumnComplex ()
Array< DComplex >	getColumnDComplex ()
Array< String >	getColumnString ()
Static Public Member Functions
static Unit	getColumnUnit (const ROTableColumn &)
	Get the column unit (can be empty).
Protected Attributes
ROTableColumn *	tabColPtr_p

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Constructor & Destructor Documentation

casa::TableExprNodeColumn::TableExprNodeColumn	(	const Table &	,
		const String &	columnName
	)

casa::TableExprNodeColumn::~TableExprNodeColumn

(

)

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Member Function Documentation

virtual void casa::TableExprNodeColumn::replaceTablePtr

(

const Table &

)

[virtual]

Replace the Table pointer in this node.

Reimplemented from casa::TableExprNodeBinary.

Bool casa::TableExprNodeColumn::getBool

(

const TableExprId &

id

)

[virtual]

Get a scalar value for this node in the given row.

The appropriate functions are implemented in the derived classes and will usually invoke the get in their children and apply the operator on the resulting values.

Reimplemented from casa::TableExprNodeRep.

Double casa::TableExprNodeColumn::getDouble

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

DComplex casa::TableExprNodeColumn::getDComplex

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

String casa::TableExprNodeColumn::getString

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

const ROTableColumn& casa::TableExprNodeColumn::getColumn

(

)

const

Bool casa::TableExprNodeColumn::getColumnDataType

(

DataType &

)

const [virtual]

Get the data type of this scalar column.

Reimplemented from casa::TableExprNodeRep.

Array<Bool> casa::TableExprNodeColumn::getColumnBool

(

)

[virtual]

Get the value of the expression evaluated for the entire column.

The data of function called should match the data type as returned by function getColumnDataType.

Reimplemented from casa::TableExprNodeRep.

Array<uChar> casa::TableExprNodeColumn::getColumnuChar

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Short> casa::TableExprNodeColumn::getColumnShort

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<uShort> casa::TableExprNodeColumn::getColumnuShort

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Int> casa::TableExprNodeColumn::getColumnInt

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<uInt> casa::TableExprNodeColumn::getColumnuInt

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Float> casa::TableExprNodeColumn::getColumnFloat

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Double> casa::TableExprNodeColumn::getColumnDouble

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Complex> casa::TableExprNodeColumn::getColumnComplex

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<DComplex> casa::TableExprNodeColumn::getColumnDComplex

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<String> casa::TableExprNodeColumn::getColumnString

(

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

static Unit casa::TableExprNodeColumn::getColumnUnit

(

const ROTableColumn &

)

[static]

Get the column unit (can be empty).

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Member Data Documentation

ROTableColumn* casa::TableExprNodeColumn::tabColPtr_p [protected]

Definition at line 299 of file ExprDerNode.h.

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

• tables/implement/Tables/ExprDerNode.h

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