Class representing an array function in table select expression. More...

#include <ExprFuncNodeArray.h>

Inheritance diagram for casa::TableExprFuncNodeArray:

Public Member Functions
	TableExprFuncNodeArray (TableExprFuncNode::FunctionType, NodeDataType, ValueType, const TableExprNodeSet &source, const TaQLStyle &)
	Constructor.
	~TableExprFuncNodeArray ()
	Destructor.
virtual Array< Bool >	getArrayBool (const TableExprId &id)
	'get' Functions to get the desired result of a function
virtual Array< Int64 >	getArrayInt (const TableExprId &id)
virtual Array< Double >	getArrayDouble (const TableExprId &id)
virtual Array< DComplex >	getArrayDComplex (const TableExprId &id)
	The default implementation of getArrayDComplex does getArrayDouble and converts the result.
virtual Array< String >	getArrayString (const TableExprId &id)
virtual Array< MVTime >	getArrayDate (const TableExprId &id)
const TableExprFuncNode *	getChild () const
	Get the function node.
Static Public Member Functions
static TableExprNodeRep *	fillNode (TableExprFuncNodeArray thisNode, PtrBlock< TableExprNodeRep > &nodes, const Block< Int > &dtypeOper)
	Link the children to the node and convert the children to constants if possible.
Private Member Functions
void	tryToConst ()
	Try if the function gives a constant result.
const PtrBlock < TableExprNodeRep * > &	operands () const
	Some functions to be used by TableExprNodeFuncArray.
PtrBlock< TableExprNodeRep * > &	rwOperands ()
TableExprFuncNode::FunctionType	funcType () const
NodeDataType	argDataType () const
void	setScale (Double scale)
	Set unit scale factor (needed for sqrt).
IPosition	getAxes (const TableExprId &id, Int ndim, uInt axarg=1, Bool swapRemove=True)
	Get the collapse axes for the partial functions.
IPosition	removeAxes (const IPosition &axes, Int ndim) const
	Remove axes exceeding ndim.
const IPosition &	getArrayShape (const TableExprId &id, uInt axarg=1)
	Get the shape for the array function.
IPosition	getOrder (const TableExprId &id, Int ndim)
	Get the transpose order of the array axes.
Private Attributes
TableExprFuncNode	node_p
Int	origin_p
Bool	isCOrder_p
Bool	constAxes_p
IPosition	ipos_p
IPosition	iposN_p

Detailed Description

Class representing an array function in table select expression.

Intended use:

Internal

Review Status

Reviewed By:: UNKNOWN
Date Reviewed:: before2004/08/25

Prerequisite

Synopsis

This class can be seen as a specialization of TableExprFuncNode for functions returning arrays. However, it is derived from TableExprNodeArray to make it possible that the ExprNode classes use all array functionality offered by that base class.
Internally an TableExprFuncNode object is used.

When a TaQL function is used, TableExprFuncNode::checkOperands determines whether the result is a scalar or an array. Thereafter TableExprNode::newFunctionNode creates a TableExprFuncNode for scalars or a TableExprFuncNodeArray for arrays.

Definition at line 69 of file ExprFuncNodeArray.h.

Constructor & Destructor Documentation

casa::TableExprFuncNodeArray::TableExprFuncNodeArray	(	TableExprFuncNode::FunctionType	,
		NodeDataType	,
		ValueType	,
		const TableExprNodeSet &	source,
		const TaQLStyle &
	)

Constructor.

casa::TableExprFuncNodeArray::~TableExprFuncNodeArray ( )

Destructor.

Member Function Documentation

NodeDataType casa::TableExprFuncNodeArray::argDataType ( ) const [inline, private]

Definition at line 115 of file ExprFuncNodeArray.h.

References casa::TableExprFuncNode::argDataType(), and node_p.

static TableExprNodeRep* casa::TableExprFuncNodeArray::fillNode	(	TableExprFuncNodeArray *	thisNode,
		PtrBlock< TableExprNodeRep * > &	nodes,
		const Block< Int > &	dtypeOper
	)		`[static]`

Link the children to the node and convert the children to constants if possible.

Also convert the node to constant if possible.

TableExprFuncNode::FunctionType casa::TableExprFuncNodeArray::funcType ( ) const [inline, private]

Definition at line 113 of file ExprFuncNodeArray.h.

References casa::TableExprFuncNode::funcType(), and node_p.

virtual Array<Bool> casa::TableExprFuncNodeArray::getArrayBool ( const TableExprId & id ) [virtual]

'get' Functions to get the desired result of a function

Reimplemented from casa::TableExprNodeRep.

virtual Array<MVTime> casa::TableExprFuncNodeArray::getArrayDate ( const TableExprId & id ) [virtual]

Reimplemented from casa::TableExprNodeRep.

virtual Array<DComplex> casa::TableExprFuncNodeArray::getArrayDComplex ( const TableExprId & id ) [virtual]

The default implementation of getArrayDComplex does getArrayDouble and converts the result.

Reimplemented from casa::TableExprNodeArray.

virtual Array<Double> casa::TableExprFuncNodeArray::getArrayDouble ( const TableExprId & id ) [virtual]

Reimplemented from casa::TableExprNodeRep.

virtual Array<Int64> casa::TableExprFuncNodeArray::getArrayInt ( const TableExprId & id ) [virtual]

Reimplemented from casa::TableExprNodeRep.

const IPosition& casa::TableExprFuncNodeArray::getArrayShape	(	const TableExprId &	id,
		uInt	axarg = `1`
	)		`[private]`

Get the shape for the array function.

axarg gives the argument nr of the shape.

virtual Array<String> casa::TableExprFuncNodeArray::getArrayString ( const TableExprId & id ) [virtual]

Reimplemented from casa::TableExprNodeRep.

IPosition casa::TableExprFuncNodeArray::getAxes	(	const TableExprId &	id,
		Int	ndim,
		uInt	axarg = `1`,
		Bool	swapRemove = `True`
	)		`[private]`

Get the collapse axes for the partial functions.

It compares the values with the #dim and removes them if too high. axarg gives the argument nr of the axes.

const TableExprFuncNode* casa::TableExprFuncNodeArray::getChild ( ) const [inline]

Get the function node.

Definition at line 92 of file ExprFuncNodeArray.h.

References node_p.

IPosition casa::TableExprFuncNodeArray::getOrder	(	const TableExprId &	id,
		Int	ndim
	)		`[private]`

Get the transpose order of the array axes.

const PtrBlock<TableExprNodeRep*>& casa::TableExprFuncNodeArray::operands ( ) const [inline, private]

Some functions to be used by TableExprNodeFuncArray.

Definition at line 109 of file ExprFuncNodeArray.h.

References node_p, and casa::TableExprFuncNode::operands().

IPosition casa::TableExprFuncNodeArray::removeAxes	(	const IPosition &	axes,
		Int	ndim
	)		const `[private]`

Remove axes exceeding ndim.

PtrBlock<TableExprNodeRep*>& casa::TableExprFuncNodeArray::rwOperands ( ) [inline, private]

Definition at line 111 of file ExprFuncNodeArray.h.

References node_p, and casa::TableExprFuncNode::rwOperands().

void casa::TableExprFuncNodeArray::setScale ( Double scale ) [inline, private]

Set unit scale factor (needed for sqrt).

Definition at line 120 of file ExprFuncNodeArray.h.

References node_p, and casa::TableExprFuncNode::setScale().

void casa::TableExprFuncNodeArray::tryToConst ( ) [private]

Try if the function gives a constant result.

If so, set the expression type to Constant.

Member Data Documentation

Bool casa::TableExprFuncNodeArray::constAxes_p [private]

Definition at line 142 of file ExprFuncNodeArray.h.

IPosition casa::TableExprFuncNodeArray::ipos_p [private]

Definition at line 143 of file ExprFuncNodeArray.h.

IPosition casa::TableExprFuncNodeArray::iposN_p [private]

Definition at line 144 of file ExprFuncNodeArray.h.

Bool casa::TableExprFuncNodeArray::isCOrder_p [private]

Definition at line 141 of file ExprFuncNodeArray.h.

TableExprFuncNode casa::TableExprFuncNodeArray::node_p [private]

Definition at line 139 of file ExprFuncNodeArray.h.

Referenced by argDataType(), funcType(), getChild(), operands(), rwOperands(), and setScale().

Int casa::TableExprFuncNodeArray::origin_p [private]

Definition at line 140 of file ExprFuncNodeArray.h.

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

casacore/tables/Tables/ExprFuncNodeArray.h

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Intended use:

Review Status

Prerequisite

Synopsis

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation