The index of an array element in a table select expression. More...

#include <ExprNodeArray.h>

Public Member Functions
	TableExprNodeIndex (const TableExprNodeSet &indices, const TaQLStyle &=TaQLStyle(0))
	Constructor. More...

virtual	~TableExprNodeIndex ()
	Destructor. More...

void	fillIndex (const TableExprNodeSet &indices)
	Link all the operands and check datatype. More...

void	checkIndexValues (const TableExprNodeRep *arrayNode)
	Check if the index values match the dimensionality and shape of fixed-shaped array. More...

const Slicer &	getConstantSlicer () const
	Get the Slicer value for a constant index. More...

const Slicer &	getSlicer (const TableExprId &id)
	Get the Slicer value for the slice. More...

Bool	isSingle () const
	Does it index a single element? More...

Public Member Functions inherited from casacore::TableExprNodeMulti
	TableExprNodeMulti (NodeDataType, ValueType, OperType, const TableExprNodeRep &source)
	Constructor. More...

virtual	~TableExprNodeMulti ()
	Destructor. More...

virtual void	show (ostream &, uInt indent) const
	Show the expression tree. More...

virtual void	getAggrNodes (vector< TableExprNodeRep *> &aggr)
	Get the nodes representing an aggregate function. More...

virtual void	getColumnNodes (vector< TableExprNodeRep *> &cols)
	Get the nodes representing a table column. More...

const PtrBlock< TableExprNodeRep * > &	getChildren () const
	Get the child nodes. More...

Public Member Functions inherited from casacore::TableExprNodeRep
	TableExprNodeRep (NodeDataType, ValueType, OperType, ArgType, ExprType, Int ndim, const IPosition &shape, const Table &table)
	Construct a node. More...

	TableExprNodeRep (NodeDataType, ValueType, OperType, const Table &)
	This constructor is called from the derived TableExprNodeRep. More...

	TableExprNodeRep (const TableExprNodeRep &)
	Copy constructor. More...

virtual	~TableExprNodeRep ()
	The destructor deletes all the underlying TableExprNode objects. More...

TableExprNodeRep *	link ()
	Link to this object, i.e. More...

virtual void	disableApplySelection ()
	Do not apply the selection. More...

virtual void	applySelection (const Vector< uInt > &rownrs)
	Re-create the column object for a selection of rows. More...

virtual Double	getUnitFactor () const
	Get the unit conversion factor. More...

virtual CountedPtr< TableExprGroupFuncBase >	makeGroupAggrFunc ()
	Create the correct immediate aggregate function object. More...

virtual Bool	isLazyAggregate () const
	Is the aggregate function a lazy or an immediate one? The default implementation returns True (because all UDF aggregate functions have to be lazy). More...

virtual Bool	getBool (const TableExprId &id)
	Get a scalar value for this node in the given row. More...

virtual Int64	getInt (const TableExprId &id)

virtual Double	getDouble (const TableExprId &id)

virtual DComplex	getDComplex (const TableExprId &id)

virtual String	getString (const TableExprId &id)

virtual TaqlRegex	getRegex (const TableExprId &id)

virtual MVTime	getDate (const TableExprId &id)

virtual MArray< Bool >	getArrayBool (const TableExprId &id)
	Get an array value for this node in the given row. More...

virtual MArray< Int64 >	getArrayInt (const TableExprId &id)

virtual MArray< Double >	getArrayDouble (const TableExprId &id)

virtual MArray< DComplex >	getArrayDComplex (const TableExprId &id)

virtual MArray< String >	getArrayString (const TableExprId &id)

virtual MArray< MVTime >	getArrayDate (const TableExprId &id)

void	get (const TableExprId &id, Bool &value)
	General get functions for template purposes. More...

void	get (const TableExprId &id, Int64 &value)

void	get (const TableExprId &id, Double &value)

void	get (const TableExprId &id, DComplex &value)

void	get (const TableExprId &id, MVTime &value)

void	get (const TableExprId &id, String &value)

void	get (const TableExprId &id, MArray< Bool > &value)

void	get (const TableExprId &id, MArray< Int64 > &value)

void	get (const TableExprId &id, MArray< Double > &value)

void	get (const TableExprId &id, MArray< DComplex > &value)

void	get (const TableExprId &id, MArray< MVTime > &value)

void	get (const TableExprId &id, MArray< String > &value)

MArray< Bool >	getBoolAS (const TableExprId &id)
	Get a value as an array, even it it is a scalar. More...

MArray< Int64 >	getIntAS (const TableExprId &id)

MArray< Double >	getDoubleAS (const TableExprId &id)

MArray< DComplex >	getDComplexAS (const TableExprId &id)

MArray< String >	getStringAS (const TableExprId &id)

MArray< MVTime >	getDateAS (const TableExprId &id)

virtual Bool	hasBool (const TableExprId &id, Bool value)
	Does a value occur in an array or set? The default implementation tests if it is in an array. More...

virtual Bool	hasInt (const TableExprId &id, Int64 value)

virtual Bool	hasDouble (const TableExprId &id, Double value)

virtual Bool	hasDComplex (const TableExprId &id, const DComplex &value)

virtual Bool	hasString (const TableExprId &id, const String &value)

virtual Bool	hasDate (const TableExprId &id, const MVTime &value)

virtual MArray< Bool >	hasArrayBool (const TableExprId &id, const MArray< Bool > &value)

virtual MArray< Bool >	hasArrayInt (const TableExprId &id, const MArray< Int64 > &value)

virtual MArray< Bool >	hasArrayDouble (const TableExprId &id, const MArray< Double > &value)

virtual MArray< Bool >	hasArrayDComplex (const TableExprId &id, const MArray< DComplex > &value)

virtual MArray< Bool >	hasArrayString (const TableExprId &id, const MArray< String > &value)

virtual MArray< Bool >	hasArrayDate (const TableExprId &id, const MArray< MVTime > &value)

uInt	nrow () const
	Get the number of rows in the table associated with this expression. More...

virtual Bool	getColumnDataType (DataType &) const
	Get the data type of the column. More...

virtual Array< Bool >	getColumnBool (const Vector< uInt > &rownrs)
	Get the value of the expression evaluated for the entire column. More...

virtual Array< uChar >	getColumnuChar (const Vector< uInt > &rownrs)

virtual Array< Short >	getColumnShort (const Vector< uInt > &rownrs)

virtual Array< uShort >	getColumnuShort (const Vector< uInt > &rownrs)

virtual Array< Int >	getColumnInt (const Vector< uInt > &rownrs)

virtual Array< uInt >	getColumnuInt (const Vector< uInt > &rownrs)

virtual Array< Float >	getColumnFloat (const Vector< uInt > &rownrs)

virtual Array< Double >	getColumnDouble (const Vector< uInt > &rownrs)

virtual Array< Complex >	getColumnComplex (const Vector< uInt > &rownrs)

virtual Array< DComplex >	getColumnDComplex (const Vector< uInt > &rownrs)

virtual Array< String >	getColumnString (const Vector< uInt > &rownrs)

virtual void	ranges (Block< TableExprRange > &)
	Convert the tree to a number of range vectors which at least select the same things. More...

NodeDataType	dataType () const
	Get the data type of the derived TableExprNode object. More...

Bool	isReal () const
	Is the data type real (i.e., integer or double)? More...

ValueType	valueType () const
	Get the value type. More...

void	setValueType (ValueType vtype)
	Set the value type. More...

OperType	operType () const
	Get the operator type. More...

ExprType	exprType () const
	Get the expression type. More...

Bool	isConstant () const
	Is the expression a constant? More...

const Unit &	unit () const
	Get the unit. More...

void	setUnit (const Unit &unit)
	Set the unit. More...

Int	ndim () const
	Get the fixed dimensionality (same for all rows). More...

const IPosition &	shape () const
	Get the fixed shape (same for all rows). More...

const IPosition &	shape (const TableExprId &id)
	Get the shape for the given row. More...

virtual Bool	isDefined (const TableExprId &id)
	Is the value in the given row defined? The default implementation returns True. More...

Table &	table ()
	Get table. More...

const Table &	table () const

virtual void	adaptSetUnits (const Unit &)
	Let a set node convert itself to the given unit. More...

Protected Member Functions
void	convertConstIndex ()
	Precalculate the constant indices and store them. More...

void	fillSlicer (const TableExprId &id)
	Fill the slicer for this row. More...

IPosition	getNodeShape (const TableExprNodeRep *arrayNode) const
	Get the shape of the node involved. More...

Protected Member Functions inherited from casacore::TableExprNodeRep
virtual const IPosition &	getShape (const TableExprId &id)
	Get the shape for the given row. More...

virtual void	convertConstChild ()
	When one of the children is a constant, convert its data type to that of the other operand. More...

void	checkTablePtr (const TableExprNodeRep *node)
	Check if this node uses the same table pointer. More...

void	fillExprType (const TableExprNodeRep *node)
	Set expression type to Variable if node is Variable. More...

Protected Attributes
Int	origin_p

Int	endMinus_p

Bool	isCOrder_p

IPosition	start_p

IPosition	end_p

IPosition	incr_p

Slicer	slicer_p

Block< Bool >	varIndex_p

Bool	isSingle_p

Protected Attributes inherited from casacore::TableExprNodeMulti
PtrBlock< TableExprNodeRep * >	operands_p

Protected Attributes inherited from casacore::TableExprNodeRep
uInt	count_p

Table	table_p

NodeDataType	dtype_p

ValueType	vtype_p

OperType	optype_p

ArgType	argtype_p

ExprType	exprtype_p

Int	ndim_p

IPosition	shape_p

Unit	unit_p

Additional Inherited Members
Public Types inherited from casacore::TableExprNodeRep
enum	NodeDataType { NTBool, NTInt, NTDouble, NTComplex, NTString, NTRegex, NTDate, NTReal, NTDouCom, NTNumeric, NTAny }
	Define the data types of a node. More...

enum	ValueType { VTScalar, VTArray, VTRecord, VTSetElem, VTSet, VTIndex }
	Define the value types. More...

enum	OperType { OtPlus, OtMinus, OtTimes, OtDivide, OtModulo, OtBitAnd, OtBitOr, OtBitXor, OtBitNegate, OtEQ, OtGE, OtGT, OtNE, OtIN, OtAND, OtOR, OtNOT, OtMIN, OtColumn, OtField, OtLiteral, OtFunc, OtSlice, OtUndef, OtRownr, OtRandom }
	Define the operator types. More...

enum	ArgType { NoArr, ArrArr, ArrSca, ScaArr }
	Define the value types of the 2 arguments when arrays are involved. More...

enum	ExprType { Constant, Variable }
	Define (sub-)expression type. More...

Static Public Member Functions inherited from casacore::TableExprNodeMulti
static uInt	checkNumOfArg (uInt low, uInt high, const PtrBlock< TableExprNodeRep *> &nodes)
	Check number of arguments low <= number_of_args <= high It throws an exception if wrong number of arguments. More...

static NodeDataType	checkDT (Block< Int > &dtypeOper, NodeDataType dtIn, NodeDataType dtOut, const PtrBlock< TableExprNodeRep *> &nodes)
	Check datatype of nodes and return output type. More...

Static Public Member Functions inherited from casacore::TableExprNodeRep
static void	unlink (TableExprNodeRep *)
	Unlink from the given object. More...

static void	checkAggrFuncs (const TableExprNodeRep *node)
	Throw an exception if an aggregate function is used in the expression node. More...

static void	createRange (Block< TableExprRange > &, TableExprNodeColumn *, Double start, Double end)
	Create a range object from a column and an interval. More...

static void	createRange (Block< TableExprRange > &)
	Create a empty range object. More...

static String	typeString (NodeDataType)
	Convert a NodeDataType to a string. More...

static String	typeString (ValueType)
	Convert a ValueType to a string. More...

Static Protected Member Functions inherited from casacore::TableExprNodeRep
static TableExprNodeRep *	getRep (TableExprNode &)
	Get pointer to REPresentation object. More...

static void	checkTablePtr (Table &table, const TableExprNodeRep *node)

static void	fillExprType (ExprType &, const TableExprNodeRep *node)

static TableExprNodeRep *	convertNode (TableExprNodeRep *thisNode, Bool convertConstType)
	When the node is constant, it is evaluated and replaced by the appropriate TableExprNodeConst object. More...

Detailed Description

The index of an array element in a table select expression.

Intended use:

Internal

Review Status

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

Prerequisite

TableExprNodeMulti

Etymology

TableExprNodeIndex is used to store an index. All the operands must be Int.

Synopsis

TableExprNodeIndex is a derivation of TableExprNodeMulti expression tree that represents an index.

Motivation

All operands of TableExprNodeIndex must be Int, therefore it is a derivation of TableExprNodeMulti.

To Do

to be filled in

Definition at line 713 of file ExprNodeArray.h.

Constructor & Destructor Documentation

§ TableExprNodeIndex()

casacore::TableExprNodeIndex::TableExprNodeIndex	(	const TableExprNodeSet &	indices,
		const TaQLStyle &	= `TaQLStyle(0)`
	)

explicit

Constructor.

§ ~TableExprNodeIndex()

virtual casacore::TableExprNodeIndex::~TableExprNodeIndex ( )

virtual

Destructor.

Member Function Documentation

§ checkIndexValues()

void casacore::TableExprNodeIndex::checkIndexValues ( const TableExprNodeRep * arrayNode )

Check if the index values match the dimensionality and shape of fixed-shaped array.

§ convertConstIndex()

void casacore::TableExprNodeIndex::convertConstIndex ( )

protected

Precalculate the constant indices and store them.

§ fillIndex()

void casacore::TableExprNodeIndex::fillIndex ( const TableExprNodeSet & indices )

Link all the operands and check datatype.

Calculate the IPosition values for the const operands.

§ fillSlicer()

void casacore::TableExprNodeIndex::fillSlicer ( const TableExprId & id )

protected

Fill the slicer for this row.

§ getConstantSlicer()

const Slicer & casacore::TableExprNodeIndex::getConstantSlicer ( ) const

inline

Get the Slicer value for a constant index.

Definition at line 846 of file ExprNodeArray.h.

§ getNodeShape()

IPosition casacore::TableExprNodeIndex::getNodeShape ( const TableExprNodeRep * arrayNode ) const

protected

Get the shape of the node involved.

Reverse axes if needed.

§ getSlicer()

const Slicer & casacore::TableExprNodeIndex::getSlicer ( const TableExprId & id )

inline

Get the Slicer value for the slice.

Definition at line 850 of file ExprNodeArray.h.

References casacore::TableExprNodeRep::isConstant().

§ isSingle()

Bool casacore::TableExprNodeIndex::isSingle ( ) const

inline

Does it index a single element?

Definition at line 842 of file ExprNodeArray.h.

Member Data Documentation

§ end_p

IPosition casacore::TableExprNodeIndex::end_p

protected

Definition at line 745 of file ExprNodeArray.h.

§ endMinus_p

Int casacore::TableExprNodeIndex::endMinus_p

protected

Definition at line 742 of file ExprNodeArray.h.

§ incr_p

IPosition casacore::TableExprNodeIndex::incr_p

protected

Definition at line 746 of file ExprNodeArray.h.

§ isCOrder_p

Bool casacore::TableExprNodeIndex::isCOrder_p

protected

Definition at line 743 of file ExprNodeArray.h.

§ isSingle_p

Bool casacore::TableExprNodeIndex::isSingle_p

protected

Definition at line 749 of file ExprNodeArray.h.

§ origin_p

Int casacore::TableExprNodeIndex::origin_p

protected

Definition at line 741 of file ExprNodeArray.h.

§ slicer_p

Slicer casacore::TableExprNodeIndex::slicer_p

protected

Definition at line 747 of file ExprNodeArray.h.

§ start_p

IPosition casacore::TableExprNodeIndex::start_p

protected

Definition at line 744 of file ExprNodeArray.h.

§ varIndex_p

Block<Bool> casacore::TableExprNodeIndex::varIndex_p

protected

Definition at line 748 of file ExprNodeArray.h.

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

tables/TaQL/ExprNodeArray.h

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Intended use:

Review Status

Prerequisite

Etymology

Synopsis

Motivation

To Do

Constructor & Destructor Documentation

§ TableExprNodeIndex()

§ ~TableExprNodeIndex()

Member Function Documentation

§ checkIndexValues()

§ convertConstIndex()

§ fillIndex()

§ fillSlicer()

§ getConstantSlicer()

§ getNodeShape()

§ getSlicer()

§ isSingle()

Member Data Documentation

§ end_p

§ endMinus_p

§ incr_p

§ isCOrder_p

§ isSingle_p

§ origin_p

§ slicer_p

§ start_p

§ varIndex_p