casa::TableExprFuncNodeArray Class Reference
[Tables_internal_classes]

#include <ExprFuncNodeArray.h>

Inheritance diagram for casa::TableExprFuncNodeArray:

[legend]Collaboration diagram for casa::TableExprFuncNodeArray:

[legend]List of all members.

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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

• TableExprFuncNode
• TableExprNodeArray

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.

Public Member Functions
	TableExprFuncNodeArray (TableExprFuncNode::FunctionType, NodeDataType, ValueType, const TableExprNodeSet &source, const TaQLStyle &)
	Constructor.
	~TableExprFuncNodeArray ()
	Destructor.
const TableExprFuncNode *	getChild () const
	Get the function node.
virtual Array< Bool >	getArrayBool (const TableExprId &id)
	'get' Functions to get the desired result of a function
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)
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 IPosition &	getCollapseAxes (const TableExprId &id, Int ndim, uInt axarg=1)
	Get the collapseAxes for the partial functions.
const IPosition &	getArrayShape (const TableExprId &id, uInt axarg=1)
	Get the shape for the array function.
PtrBlock< TableExprNodeRep * >	operands ()
	Some functions to be used by TableExprNodeFuncArray.
TableExprFuncNode::FunctionType	funcType () const
NodeDataType	argDataType () const
Private Attributes
TableExprFuncNode	node_p
Int	origin_p
Bool	isCOrder_p
Bool	constAxes_p
IPosition	ipos_p
IPosition	iposN_p
IPosition	corrCollAxes_p
uInt	lastNdim_p

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Constructor & Destructor Documentation

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

Constructor.

casa::TableExprFuncNodeArray::~TableExprFuncNodeArray

(

)

Destructor.

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Member Function Documentation

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<Double> casa::TableExprFuncNodeArray::getArrayDouble

(

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<String> casa::TableExprFuncNodeArray::getArrayString

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

virtual Array<MVTime> casa::TableExprFuncNodeArray::getArrayDate

(

const TableExprId &

id

)

[virtual]

Reimplemented from casa::TableExprNodeRep.

const TableExprFuncNode* casa::TableExprFuncNodeArray::getChild

(

)

const [inline]

Get the function node.

Definition at line 91 of file ExprFuncNodeArray.h.

References 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.

void casa::TableExprFuncNodeArray::tryToConst

(

)

[private]

Try if the function gives a constant result.

If so, set the expression type to Constant.

PtrBlock<TableExprNodeRep*> casa::TableExprFuncNodeArray::operands

(

)

[inline, private]

Some functions to be used by TableExprNodeFuncArray.

Definition at line 108 of file ExprFuncNodeArray.h.

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

TableExprFuncNode::FunctionType casa::TableExprFuncNodeArray::funcType

(

)

const [inline, private]

Definition at line 110 of file ExprFuncNodeArray.h.

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

NodeDataType casa::TableExprFuncNodeArray::argDataType

(

)

const [inline, private]

Definition at line 112 of file ExprFuncNodeArray.h.

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

const IPosition& casa::TableExprFuncNodeArray::getCollapseAxes	(	const TableExprId &	id,
		Int	ndim,
		uInt	axarg = 1
	)			[private]

Get the collapseAxes 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 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.

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Member Data Documentation

TableExprFuncNode casa::TableExprFuncNodeArray::node_p [private]

Definition at line 126 of file ExprFuncNodeArray.h.

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

Int casa::TableExprFuncNodeArray::origin_p [private]

Definition at line 127 of file ExprFuncNodeArray.h.

Bool casa::TableExprFuncNodeArray::isCOrder_p [private]

Definition at line 128 of file ExprFuncNodeArray.h.

Bool casa::TableExprFuncNodeArray::constAxes_p [private]

Definition at line 129 of file ExprFuncNodeArray.h.

IPosition casa::TableExprFuncNodeArray::ipos_p [private]

Definition at line 130 of file ExprFuncNodeArray.h.

IPosition casa::TableExprFuncNodeArray::iposN_p [private]

Definition at line 131 of file ExprFuncNodeArray.h.

IPosition casa::TableExprFuncNodeArray::corrCollAxes_p [private]

Definition at line 132 of file ExprFuncNodeArray.h.

uInt casa::TableExprFuncNodeArray::lastNdim_p [private]

Definition at line 134 of file ExprFuncNodeArray.h.

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

• tables/implement/Tables/ExprFuncNodeArray.h

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