casacore
Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
casacore::TableExprNodeIndex Class Reference

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 SlicergetConstantSlicer () const
 Get the Slicer value for a constant index. More...
 
const SlicergetSlicer (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...
 
TableExprNodeReplink ()
 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< TableExprGroupFuncBasemakeGroupAggrFunc ()
 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 Array< BoolgetArrayBool (const TableExprId &id)
 Get an array value for this node in the given row. More...
 
virtual Array< Int64getArrayInt (const TableExprId &id)
 
virtual Array< DoublegetArrayDouble (const TableExprId &id)
 
virtual Array< DComplex > getArrayDComplex (const TableExprId &id)
 
virtual Array< StringgetArrayString (const TableExprId &id)
 
virtual Array< MVTimegetArrayDate (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, Array< Bool > &value)
 
void get (const TableExprId &id, Array< Int64 > &value)
 
void get (const TableExprId &id, Array< Double > &value)
 
void get (const TableExprId &id, Array< DComplex > &value)
 
void get (const TableExprId &id, Array< MVTime > &value)
 
void get (const TableExprId &id, Array< String > &value)
 
Array< BoolgetBoolAS (const TableExprId &id)
 Get a value as an array, even it it is a scalar. More...
 
Array< Int64getIntAS (const TableExprId &id)
 
Array< DoublegetDoubleAS (const TableExprId &id)
 
Array< DComplex > getDComplexAS (const TableExprId &id)
 
Array< StringgetStringAS (const TableExprId &id)
 
Array< MVTimegetDateAS (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 Array< BoolhasArrayBool (const TableExprId &id, const Array< Bool > &value)
 
virtual Array< BoolhasArrayInt (const TableExprId &id, const Array< Int64 > &value)
 
virtual Array< BoolhasArrayDouble (const TableExprId &id, const Array< Double > &value)
 
virtual Array< BoolhasArrayDComplex (const TableExprId &id, const Array< DComplex > &value)
 
virtual Array< BoolhasArrayString (const TableExprId &id, const Array< String > &value)
 
virtual Array< BoolhasArrayDate (const TableExprId &id, const Array< 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< BoolgetColumnBool (const Vector< uInt > &rownrs)
 Get the value of the expression evaluated for the entire column. More...
 
virtual Array< uChargetColumnuChar (const Vector< uInt > &rownrs)
 
virtual Array< ShortgetColumnShort (const Vector< uInt > &rownrs)
 
virtual Array< uShortgetColumnuShort (const Vector< uInt > &rownrs)
 
virtual Array< IntgetColumnInt (const Vector< uInt > &rownrs)
 
virtual Array< uIntgetColumnuInt (const Vector< uInt > &rownrs)
 
virtual Array< FloatgetColumnFloat (const Vector< uInt > &rownrs)
 
virtual Array< DoublegetColumnDouble (const Vector< uInt > &rownrs)
 
virtual Array< Complex > getColumnComplex (const Vector< uInt > &rownrs)
 
virtual Array< DComplex > getColumnDComplex (const Vector< uInt > &rownrs)
 
virtual Array< StringgetColumnString (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...
 
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 Unitunit () 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 IPositionshape () const
 Get the fixed shape (same for all rows). More...
 
const IPositionshape (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...
 
Tabletable ()
 Get table. More...
 
const Tabletable () 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 IPositiongetShape (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< BoolvarIndex_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 TableExprNodeRepgetRep (TableExprNode &)
 Get pointer to REPresentation object. More...
 
static void checkTablePtr (Table &table, const TableExprNodeRep *node)
 
static void fillExprType (ExprType &, const TableExprNodeRep *node)
 
static TableExprNodeRepconvertNode (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

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

Definition at line 709 of file ExprNodeArray.h.

Constructor & Destructor Documentation

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

Constructor.

virtual casacore::TableExprNodeIndex::~TableExprNodeIndex ( )
virtual

Destructor.

Member Function Documentation

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

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

void casacore::TableExprNodeIndex::convertConstIndex ( )
protected

Precalculate the constant indices and store them.

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

Link all the operands and check datatype.

Calculate the IPosition values for the const operands.

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

Fill the slicer for this row.

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

Get the Slicer value for a constant index.

Definition at line 842 of file ExprNodeArray.h.

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

Get the shape of the node involved.

Reverse axes if needed.

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

Get the Slicer value for the slice.

Definition at line 846 of file ExprNodeArray.h.

References casacore::TableExprNodeRep::isConstant().

Bool casacore::TableExprNodeIndex::isSingle ( ) const
inline

Does it index a single element?

Definition at line 838 of file ExprNodeArray.h.

Member Data Documentation

IPosition casacore::TableExprNodeIndex::end_p
protected

Definition at line 741 of file ExprNodeArray.h.

Int casacore::TableExprNodeIndex::endMinus_p
protected

Definition at line 738 of file ExprNodeArray.h.

IPosition casacore::TableExprNodeIndex::incr_p
protected

Definition at line 742 of file ExprNodeArray.h.

Bool casacore::TableExprNodeIndex::isCOrder_p
protected

Definition at line 739 of file ExprNodeArray.h.

Bool casacore::TableExprNodeIndex::isSingle_p
protected

Definition at line 745 of file ExprNodeArray.h.

Int casacore::TableExprNodeIndex::origin_p
protected

Definition at line 737 of file ExprNodeArray.h.

Slicer casacore::TableExprNodeIndex::slicer_p
protected

Definition at line 743 of file ExprNodeArray.h.

IPosition casacore::TableExprNodeIndex::start_p
protected

Definition at line 740 of file ExprNodeArray.h.

Block<Bool> casacore::TableExprNodeIndex::varIndex_p
protected

Definition at line 744 of file ExprNodeArray.h.


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