casa::TableExprNodeColumn Class Reference

Scalar column in table select expression tree. More...

#include <ExprDerNode.h>

Inheritance diagram for casa::TableExprNodeColumn:

List of all members.

Public Member Functions
	TableExprNodeColumn (const Table &, const String &columnName)
	~TableExprNodeColumn ()
Bool	getBool (const TableExprId &id)
	Is the expression a column aggregate function?
Int64	getInt (const TableExprId &id)
Double	getDouble (const TableExprId &id)
DComplex	getDComplex (const TableExprId &id)
String	getString (const TableExprId &id)
const TableColumn &	getColumn () const
Bool	getColumnDataType (DataType &) const
	Get the data type of this scalar column.
Array< Bool >	getColumnBool (const Vector< uInt > &rownrs)
	Get the value of the expression evaluated for the entire column.
Array< uChar >	getColumnuChar (const Vector< uInt > &rownrs)
Array< Short >	getColumnShort (const Vector< uInt > &rownrs)
Array< uShort >	getColumnuShort (const Vector< uInt > &rownrs)
Array< Int >	getColumnInt (const Vector< uInt > &rownrs)
Array< uInt >	getColumnuInt (const Vector< uInt > &rownrs)
Array< Float >	getColumnFloat (const Vector< uInt > &rownrs)
Array< Double >	getColumnDouble (const Vector< uInt > &rownrs)
Array< Complex >	getColumnComplex (const Vector< uInt > &rownrs)
Array< DComplex >	getColumnDComplex (const Vector< uInt > &rownrs)
Array< String >	getColumnString (const Vector< uInt > &rownrs)
Static Public Member Functions
static Unit	getColumnUnit (const TableColumn &)
	Get the column unit (can be empty).
Protected Attributes
TableColumn *	tabColPtr_p

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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 298 of file ExprDerNode.h.

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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

Bool casa::TableExprNodeColumn::getBool

(

const TableExprId &

id

)

[virtual]

Is the expression a column aggregate function?

virtual Bool isAggregate() const; 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.

const TableColumn& casa::TableExprNodeColumn::getColumn

(

)

const

Array<Bool> casa::TableExprNodeColumn::getColumnBool

(

const Vector< uInt > &

rownrs

)

[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<Complex> casa::TableExprNodeColumn::getColumnComplex

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Bool casa::TableExprNodeColumn::getColumnDataType

(

DataType &

)

const [virtual]

Get the data type of this scalar column.

Reimplemented from casa::TableExprNodeRep.

Array<DComplex> casa::TableExprNodeColumn::getColumnDComplex

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Double> casa::TableExprNodeColumn::getColumnDouble

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Float> casa::TableExprNodeColumn::getColumnFloat

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Int> casa::TableExprNodeColumn::getColumnInt

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<Short> casa::TableExprNodeColumn::getColumnShort

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<String> casa::TableExprNodeColumn::getColumnString

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<uChar> casa::TableExprNodeColumn::getColumnuChar

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Array<uInt> casa::TableExprNodeColumn::getColumnuInt

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

static Unit casa::TableExprNodeColumn::getColumnUnit

(

const TableColumn &

)

[static]

Get the column unit (can be empty).

Array<uShort> casa::TableExprNodeColumn::getColumnuShort

(

const Vector< uInt > &

rownrs

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

DComplex casa::TableExprNodeColumn::getDComplex

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Double casa::TableExprNodeColumn::getDouble

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

Int64 casa::TableExprNodeColumn::getInt

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

String casa::TableExprNodeColumn::getString

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

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Member Data Documentation

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

Definition at line 330 of file ExprDerNode.h.

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

• casacore/tables/Tables/ExprDerNode.h