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casacore::TableExprNodeRep Class Reference

Abstract base class for a node in a table column expression tree. More...

#include <ExprNodeRep.h>

Inheritance diagram for casacore::TableExprNodeRep:
casacore::TableExprNodeBinary casacore::TableExprNodeMulti casacore::TableExprNodeSet casacore::TableExprNodeSetElem casacore::TableExprNodeAND casacore::TableExprNodeArray casacore::TableExprNodeBitAndInt casacore::TableExprNodeBitNegate casacore::TableExprNodeBitOrInt casacore::TableExprNodeBitXorInt casacore::TableExprNodeColumn casacore::TableExprNodeConstBool casacore::TableExprNodeConstDate casacore::TableExprNodeConstDComplex casacore::TableExprNodeConstDouble casacore::TableExprNodeConstInt casacore::TableExprNodeConstRegex casacore::TableExprNodeConstString casacore::TableExprNodeDivide casacore::TableExprNodeEQBool casacore::TableExprNodeEQDate casacore::TableExprNodeEQDComplex casacore::TableExprNodeEQDouble casacore::TableExprNodeEQInt casacore::TableExprNodeEQRegex casacore::TableExprNodeEQString casacore::TableExprNodeGEDate casacore::TableExprNodeGEDComplex casacore::TableExprNodeGEDouble casacore::TableExprNodeGEInt casacore::TableExprNodeGEString casacore::TableExprNodeGTDate casacore::TableExprNodeGTDComplex casacore::TableExprNodeGTDouble casacore::TableExprNodeGTInt casacore::TableExprNodeGTString casacore::TableExprNodeINDate casacore::TableExprNodeINDComplex casacore::TableExprNodeINDouble casacore::TableExprNodeINInt casacore::TableExprNodeINString casacore::TableExprNodeMIN casacore::TableExprNodeMinus casacore::TableExprNodeModulo casacore::TableExprNodeNEBool casacore::TableExprNodeNEDate casacore::TableExprNodeNEDComplex casacore::TableExprNodeNEDouble casacore::TableExprNodeNEInt casacore::TableExprNodeNERegex casacore::TableExprNodeNEString casacore::TableExprNodeNOT casacore::TableExprNodeOR casacore::TableExprNodePlus casacore::TableExprNodeRandom casacore::TableExprNodeRecordField casacore::TableExprNodeRowid casacore::TableExprNodeRownr casacore::TableExprNodeTimes casacore::TableExprNodeUnit casacore::TableExprFuncNode casacore::TableExprNodeIndex casacore::TableExprUDFNode

Public Types

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...
 

Public Member Functions

 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...
 
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...
 
void checkAggrFuncs ()
 Throw an exception if an aggregate function is used in the expression node or its children. More...
 
virtual void getAggrNodes (std::vector< TableExprNodeRep * > &aggr)
 Get the nodes representing an aggregate function. More...
 
virtual void getColumnNodes (std::vector< TableExprNodeRep * > &cols)
 Get the nodes representing a table column. 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< BoolgetArrayBool (const TableExprId &id)
 Get an array value for this node in the given row. More...
 
virtual MArray< Int64getArrayInt (const TableExprId &id)
 
virtual MArray< DoublegetArrayDouble (const TableExprId &id)
 
virtual MArray< DComplex > getArrayDComplex (const TableExprId &id)
 
virtual MArray< StringgetArrayString (const TableExprId &id)
 
virtual MArray< 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, 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< BoolgetBoolAS (const TableExprId &id)
 Get a value as an array, even it it is a scalar. More...
 
MArray< Int64getIntAS (const TableExprId &id)
 
MArray< DoublegetDoubleAS (const TableExprId &id)
 
MArray< DComplex > getDComplexAS (const TableExprId &id)
 
MArray< StringgetStringAS (const TableExprId &id)
 
MArray< 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 MArray< BoolhasArrayBool (const TableExprId &id, const MArray< Bool > &value)
 
virtual MArray< BoolhasArrayInt (const TableExprId &id, const MArray< Int64 > &value)
 
virtual MArray< BoolhasArrayDouble (const TableExprId &id, const MArray< Double > &value)
 
virtual MArray< BoolhasArrayDComplex (const TableExprId &id, const MArray< DComplex > &value)
 
virtual MArray< BoolhasArrayString (const TableExprId &id, const MArray< String > &value)
 
virtual MArray< BoolhasArrayDate (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< 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< Int64getColumnInt64 (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...
 
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 Unitunit () const
 Get the unit. More...
 
void setUnit (const Unit &unit)
 Set the unit. More...
 
const Recordattributes () const
 Get the attributes. More...
 
void setAttributes (const Record &)
 Set the attributes. 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...
 
virtual void show (ostream &, uInt indent) const
 Show the expression tree. More...
 
Tabletable ()
 Get table. More...
 
const Tabletable () const
 
virtual void adaptSetUnits (const Unit &)
 Let a set node convert itself to the given unit. More...
 

Static Public Member Functions

static TENShPtr replaceConstNode (const TENShPtr &node)
 Replace a node with a constant expression by node with its value. 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...
 

Protected Member Functions

virtual const IPositiongetShape (const TableExprId &id)
 Get the shape for the given row. More...
 
virtual void convertConstChild ()
 If one of the children is a constant, convert its data type to that of the other operand (if appropriate). More...
 
void checkTablePtr (const TENShPtr &node)
 Check if this node uses the same table pointer. More...
 
void fillExprType (const TENShPtr &node)
 Set expression type to Variable if node is Variable. More...
 

Static Protected Member Functions

static void checkTablePtr (Table &table, const TENShPtr &node)
 
static void fillExprType (ExprType &, const TENShPtr &node)
 
static TENShPtr convertNode (const TENShPtr &thisNode, Bool convertConstType)
 If the node is constant, it is evaluated and replaced by the appropriate TableExprNodeConst object. More...
 

Protected Attributes

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
 
Record attributes_p
 

Private Member Functions

TableExprNodeRepoperator= (const TableExprNodeRep &)
 A copy of a TableExprNodeRep cannot be made. More...
 

Detailed Description

Abstract base class for a node in a table column expression tree.

Intended use:

Internal

Review Status

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

Prerequisite

Etymology

TableExprNodeRep is the (abstract) REPresentation of a node in a table expression tree.

Synopsis

TableExprNodeRep is the base class for all nodes in a table expression tree. It is used by the handle class TableExprNode.

The objects of this class are reference-counted to make it possible that the same object is reused.

Motivation

TableExprNodeRep and its derivations store a table select expression before actually evaluating it. It is also possible that the classes are used by the table expression parser defined in TableParse and TableGram.
For each operator a special derived class is implemented. Another approach could have been to store the operator as a flag and switch on that. However, that causes extra overhead and the C++ virtual function mechanism is designed for these purposes.

To Do

Definition at line 157 of file ExprNodeRep.h.

Member Enumeration Documentation

Define the value types of the 2 arguments when arrays are involved.

Enumerator
NoArr 
ArrArr 
ArrSca 
ScaArr 

Definition at line 196 of file ExprNodeRep.h.

Define (sub-)expression type.

Enumerator
Constant 

A constant subexpression which can be evaluated immediately.

Variable 

A variable (i.e.

row dependent) subexpression which has to be evaluated for each table row. An expensive constant subexpression which should only be evaluated when needed (e.g. a subquery). Lazy

Definition at line 201 of file ExprNodeRep.h.

Define the data types of a node.

Enumerator
NTBool 
NTInt 
NTDouble 
NTComplex 
NTString 
NTRegex 
NTDate 
NTReal 
NTDouCom 
NTNumeric 
NTAny 

Definition at line 161 of file ExprNodeRep.h.

Define the operator types.

LE and LT are handled as GE and GT with swapped operands.

Enumerator
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 

Definition at line 187 of file ExprNodeRep.h.

Define the value types.

Enumerator
VTScalar 
VTArray 
VTRecord 
VTSetElem 
VTSet 
VTIndex 

Definition at line 176 of file ExprNodeRep.h.

Constructor & Destructor Documentation

casacore::TableExprNodeRep::TableExprNodeRep ( NodeDataType  ,
ValueType  ,
OperType  ,
ArgType  ,
ExprType  ,
Int  ndim,
const IPosition shape,
const Table table 
)

Construct a node.

casacore::TableExprNodeRep::TableExprNodeRep ( NodeDataType  ,
ValueType  ,
OperType  ,
const Table  
)

This constructor is called from the derived TableExprNodeRep.

casacore::TableExprNodeRep::TableExprNodeRep ( const TableExprNodeRep )

Copy constructor.

virtual casacore::TableExprNodeRep::~TableExprNodeRep ( )
virtual

The destructor deletes all the underlying TableExprNode objects.

Member Function Documentation

virtual void casacore::TableExprNodeRep::adaptSetUnits ( const Unit )
virtual

Let a set node convert itself to the given unit.

The default implementation does nothing.

Reimplemented in casacore::TableExprNodeSet, and casacore::TableExprNodeSetElem.

virtual void casacore::TableExprNodeRep::applySelection ( const Vector< uInt > &  rownrs)
virtual
const Record & casacore::TableExprNodeRep::attributes ( ) const
inline

Get the attributes.

Definition at line 734 of file ExprNodeRep.h.

References attributes_p.

Referenced by setAttributes().

void casacore::TableExprNodeRep::checkAggrFuncs ( )

Throw an exception if an aggregate function is used in the expression node or its children.

void casacore::TableExprNodeRep::checkTablePtr ( const TENShPtr node)
inlineprotected

Check if this node uses the same table pointer.

Fill the Table object if it is still null.

Definition at line 754 of file ExprNodeRep.h.

References table_p.

static void casacore::TableExprNodeRep::checkTablePtr ( Table table,
const TENShPtr node 
)
staticprotected
virtual void casacore::TableExprNodeRep::convertConstChild ( )
protectedvirtual

If one of the children is a constant, convert its data type to that of the other operand (if appropriate).

This avoids that conversions are done for each get. The default implementation does nothing.

Reimplemented in casacore::TableExprNodeINInt.

static TENShPtr casacore::TableExprNodeRep::convertNode ( const TENShPtr thisNode,
Bool  convertConstType 
)
staticprotected

If the node is constant, it is evaluated and replaced by the appropriate TableExprNodeConst object.

If not constant, it calls the virtual ConvertConstChild function which can convert a constant child if appropriate.

static void casacore::TableExprNodeRep::createRange ( Block< TableExprRange > &  ,
TableExprNodeColumn ,
Double  start,
Double  end 
)
static

Create a range object from a column and an interval.

static void casacore::TableExprNodeRep::createRange ( Block< TableExprRange > &  )
static

Create a empty range object.

TableExprNodeRep::NodeDataType casacore::TableExprNodeRep::dataType ( ) const
inline

Get the data type of the derived TableExprNode object.

This is the data type of the resulting value. E.g. a compare of 2 numeric values results in a Bool, thus the data type of, say, TableExprNodeEQ<T> is always Bool. Function getInternalDT gives the internal data type, thus in the example above the data type of T.

Definition at line 704 of file ExprNodeRep.h.

References dtype_p.

virtual void casacore::TableExprNodeRep::disableApplySelection ( )
virtual
TableExprNodeRep::ExprType casacore::TableExprNodeRep::exprType ( ) const
inline

Get the expression type.

Definition at line 723 of file ExprNodeRep.h.

References exprtype_p.

void casacore::TableExprNodeRep::fillExprType ( const TENShPtr node)
inlineprotected

Set expression type to Variable if node is Variable.

Definition at line 756 of file ExprNodeRep.h.

References exprtype_p.

static void casacore::TableExprNodeRep::fillExprType ( ExprType ,
const TENShPtr node 
)
staticprotected
void casacore::TableExprNodeRep::get ( const TableExprId id,
Bool value 
)
inline

General get functions for template purposes.

Definition at line 286 of file ExprNodeRep.h.

References getBool(), and casacore::value().

Referenced by casacore::TableExprGroupAggr::getArray().

void casacore::TableExprNodeRep::get ( const TableExprId id,
Int64 value 
)
inline

Definition at line 288 of file ExprNodeRep.h.

References getInt(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
Double value 
)
inline

Definition at line 290 of file ExprNodeRep.h.

References getDouble(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
DComplex &  value 
)
inline

Definition at line 292 of file ExprNodeRep.h.

References getDComplex(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
MVTime value 
)
inline

Definition at line 294 of file ExprNodeRep.h.

References getDate(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
String value 
)
inline

Definition at line 296 of file ExprNodeRep.h.

References getString(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
MArray< Bool > &  value 
)
inline

Definition at line 298 of file ExprNodeRep.h.

References getArrayBool(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
MArray< Int64 > &  value 
)
inline

Definition at line 300 of file ExprNodeRep.h.

References getArrayInt(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
MArray< Double > &  value 
)
inline

Definition at line 302 of file ExprNodeRep.h.

References getArrayDouble(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
MArray< DComplex > &  value 
)
inline

Definition at line 304 of file ExprNodeRep.h.

References getArrayDComplex(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
MArray< MVTime > &  value 
)
inline

Definition at line 306 of file ExprNodeRep.h.

References getArrayDate(), and casacore::value().

void casacore::TableExprNodeRep::get ( const TableExprId id,
MArray< String > &  value 
)
inline

Definition at line 308 of file ExprNodeRep.h.

References getArrayString(), and casacore::value().

virtual void casacore::TableExprNodeRep::getAggrNodes ( std::vector< TableExprNodeRep * > &  aggr)
virtual
virtual MArray<Bool> casacore::TableExprNodeRep::getArrayBool ( const TableExprId id)
virtual

Get an array 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 in casacore::TableExprNodeArrayNOT, casacore::TableExprNodeArrayAND, casacore::TableExprNodeArrayOR, casacore::TableExprNodeArrayINDate, casacore::TableExprNodeArrayINString, casacore::TableExprNodeArrayINDComplex, casacore::TableExprNodeArrayPart, casacore::TableExprNodeArrayINDouble, casacore::TableExprNodeArrayINInt, casacore::TableExprNodeArrayGEDate, casacore::TableExprNodeArrayGEString, casacore::TableExprNodeArrayGEDComplex, casacore::TableExprNodeArrayGEDouble, casacore::TableExprNodeArrayGEInt, casacore::TableExprNodeArrayGTDate, casacore::TableExprNodeArrayGTString, casacore::TableExprNodeArrayGTDComplex, casacore::TableExprNodeArrayGTDouble, casacore::TableExprNodeArrayGTInt, casacore::TableExprNodeArrayNEDate, casacore::TableExprNodeArrayNERegex, casacore::TableExprNodeArrayNEString, casacore::TableExprNodeSet, casacore::TableExprNodeArrayNEDComplex, casacore::TableExprNodeArrayNEDouble, casacore::TableExprNodeArrayNEInt, casacore::TableExprNodeArrayNEBool, casacore::TableExprNodeArrayColumnBool, casacore::TableExprNodeArrayEQDate, casacore::TableExprNodeArrayEQRegex, casacore::TableExprNodeArrayEQString, casacore::TableExprNodeArrayEQDComplex, casacore::TableExprNodeArrayEQDouble, casacore::TableExprNodeRecordFieldArray, casacore::TableExprConeNodeArray, casacore::TableExprNodeArrayEQInt, casacore::TableExprUDFNodeArray, casacore::TableExprFuncNodeArray, casacore::TableExprAggrNodeArray, casacore::TableExprNodeArrayEQBool, and casacore::TableExprNodeArrayConstBool.

Referenced by get().

virtual MArray<MVTime> casacore::TableExprNodeRep::getArrayDate ( const TableExprId id)
virtual
virtual MArray<DComplex> casacore::TableExprNodeRep::getArrayDComplex ( const TableExprId id)
virtual
virtual MArray<Double> casacore::TableExprNodeRep::getArrayDouble ( const TableExprId id)
virtual
virtual MArray<Int64> casacore::TableExprNodeRep::getArrayInt ( const TableExprId id)
virtual
virtual MArray<String> casacore::TableExprNodeRep::getArrayString ( const TableExprId id)
virtual
virtual Bool casacore::TableExprNodeRep::getBool ( const TableExprId id)
virtual

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 in casacore::TableExprNodeNOT, casacore::TableExprNodeAND, casacore::TableExprNodeOR, casacore::TableExprNodeINDate, casacore::TableExprNodeINString, casacore::TableExprNodeINDComplex, casacore::TableExprNodeINDouble, casacore::TableExprNodeArrayPart, casacore::TableExprNodeINInt, casacore::TableExprNodeGEDate, casacore::TableExprNodeGEString, casacore::TableExprNodeGEDComplex, casacore::TableExprNodeGEDouble, casacore::TableExprNodeGEInt, casacore::TableExprNodeGTDate, casacore::TableExprNodeGTString, casacore::TableExprNodeGTDComplex, casacore::TableExprNodeGTDouble, casacore::TableExprNodeGTInt, casacore::TableExprNodeNEDate, casacore::TableExprNodeNERegex, casacore::TableExprNodeNEString, casacore::TableExprNodeNEDComplex, casacore::TableExprFuncNode, casacore::TableExprNodeNEDouble, casacore::TableExprNodeColumn, casacore::TableExprNodeNEInt, casacore::TableExprNodeNEBool, casacore::TableExprNodeEQDate, casacore::TableExprNodeEQRegex, casacore::TableExprNodeEQString, casacore::TableExprNodeEQDComplex, casacore::TableExprNodeEQDouble, casacore::TableExprAggrNode, casacore::TableExprUDFNode, casacore::TableExprNodeEQInt, casacore::TableExprNodeRecordField, casacore::TableExprConeNode, casacore::TableExprNodeConstBool, and casacore::TableExprNodeEQBool.

Referenced by get().

MArray<Bool> casacore::TableExprNodeRep::getBoolAS ( const TableExprId id)

Get a value as an array, even it it is a scalar.

This is useful if one could give an argument as scalar or array.

virtual Array<Bool> casacore::TableExprNodeRep::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 in casacore::TableExprNodeArrayPart, and casacore::TableExprNodeColumn.

virtual Array<Complex> casacore::TableExprNodeRep::getColumnComplex ( const Vector< uInt > &  rownrs)
virtual
virtual Bool casacore::TableExprNodeRep::getColumnDataType ( DataType &  ) const
virtual

Get the data type of the column.

It returns True when it could set the data type (which it can if the expression is a scalar column or a constant array column pixel). Otherwise it returns False.

Reimplemented in casacore::TableExprNodeArrayPart, casacore::TableExprNodeColumn, and casacore::TableExprNodeArrayColumn.

virtual Array<DComplex> casacore::TableExprNodeRep::getColumnDComplex ( const Vector< uInt > &  rownrs)
virtual
virtual Array<Double> casacore::TableExprNodeRep::getColumnDouble ( const Vector< uInt > &  rownrs)
virtual
virtual Array<Float> casacore::TableExprNodeRep::getColumnFloat ( const Vector< uInt > &  rownrs)
virtual
virtual Array<Int> casacore::TableExprNodeRep::getColumnInt ( const Vector< uInt > &  rownrs)
virtual
virtual Array<Int64> casacore::TableExprNodeRep::getColumnInt64 ( const Vector< uInt > &  rownrs)
virtual
virtual void casacore::TableExprNodeRep::getColumnNodes ( std::vector< TableExprNodeRep * > &  cols)
virtual
virtual Array<Short> casacore::TableExprNodeRep::getColumnShort ( const Vector< uInt > &  rownrs)
virtual
virtual Array<String> casacore::TableExprNodeRep::getColumnString ( const Vector< uInt > &  rownrs)
virtual
virtual Array<uChar> casacore::TableExprNodeRep::getColumnuChar ( const Vector< uInt > &  rownrs)
virtual
virtual Array<uInt> casacore::TableExprNodeRep::getColumnuInt ( const Vector< uInt > &  rownrs)
virtual
virtual Array<uShort> casacore::TableExprNodeRep::getColumnuShort ( const Vector< uInt > &  rownrs)
virtual
virtual MVTime casacore::TableExprNodeRep::getDate ( const TableExprId id)
virtual
MArray<MVTime> casacore::TableExprNodeRep::getDateAS ( const TableExprId id)
virtual DComplex casacore::TableExprNodeRep::getDComplex ( const TableExprId id)
virtual
MArray<DComplex> casacore::TableExprNodeRep::getDComplexAS ( const TableExprId id)
virtual Double casacore::TableExprNodeRep::getDouble ( const TableExprId id)
virtual
MArray<Double> casacore::TableExprNodeRep::getDoubleAS ( const TableExprId id)
virtual Int64 casacore::TableExprNodeRep::getInt ( const TableExprId id)
virtual
MArray<Int64> casacore::TableExprNodeRep::getIntAS ( const TableExprId id)
virtual TaqlRegex casacore::TableExprNodeRep::getRegex ( const TableExprId id)
virtual
virtual const IPosition& casacore::TableExprNodeRep::getShape ( const TableExprId id)
protectedvirtual
virtual String casacore::TableExprNodeRep::getString ( const TableExprId id)
virtual
MArray<String> casacore::TableExprNodeRep::getStringAS ( const TableExprId id)
virtual Double casacore::TableExprNodeRep::getUnitFactor ( ) const
virtual

Get the unit conversion factor.

Default 1 is returned.

Reimplemented in casacore::TableExprNodeArrayUnit, and casacore::TableExprNodeUnit.

virtual MArray<Bool> casacore::TableExprNodeRep::hasArrayBool ( const TableExprId id,
const MArray< Bool > &  value 
)
virtual
virtual MArray<Bool> casacore::TableExprNodeRep::hasArrayDate ( const TableExprId id,
const MArray< MVTime > &  value 
)
virtual
virtual MArray<Bool> casacore::TableExprNodeRep::hasArrayDComplex ( const TableExprId id,
const MArray< DComplex > &  value 
)
virtual
virtual MArray<Bool> casacore::TableExprNodeRep::hasArrayDouble ( const TableExprId id,
const MArray< Double > &  value 
)
virtual
virtual MArray<Bool> casacore::TableExprNodeRep::hasArrayInt ( const TableExprId id,
const MArray< Int64 > &  value 
)
virtual
virtual MArray<Bool> casacore::TableExprNodeRep::hasArrayString ( const TableExprId id,
const MArray< String > &  value 
)
virtual
virtual Bool casacore::TableExprNodeRep::hasBool ( const TableExprId id,
Bool  value 
)
virtual

Does a value occur in an array or set? The default implementation tests if it is in an array.

Reimplemented in casacore::TableExprNodeSet, and casacore::TableExprNodeArray.

virtual Bool casacore::TableExprNodeRep::hasDate ( const TableExprId id,
const MVTime value 
)
virtual
virtual Bool casacore::TableExprNodeRep::hasDComplex ( const TableExprId id,
const DComplex &  value 
)
virtual
virtual Bool casacore::TableExprNodeRep::hasDouble ( const TableExprId id,
Double  value 
)
virtual
virtual Bool casacore::TableExprNodeRep::hasInt ( const TableExprId id,
Int64  value 
)
virtual
virtual Bool casacore::TableExprNodeRep::hasString ( const TableExprId id,
const String value 
)
virtual
Bool casacore::TableExprNodeRep::isConstant ( ) const
inline

Is the expression a constant?

Definition at line 727 of file ExprNodeRep.h.

References Constant, and exprtype_p.

Referenced by casacore::TableExprNodeIndex::getSlicer().

virtual Bool casacore::TableExprNodeRep::isDefined ( const TableExprId id)
virtual

Is the value in the given row defined? The default implementation returns True.

Reimplemented in casacore::TableExprNodeArrayColumn, casacore::TableExprNodeRecordFieldArray, and casacore::TableExprNodeRecordField.

virtual Bool casacore::TableExprNodeRep::isLazyAggregate ( ) const
virtual

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

Reimplemented in casacore::TableExprAggrNode, and casacore::TableExprAggrNodeArray.

Bool casacore::TableExprNodeRep::isReal ( ) const
inline

Is the data type real (i.e., integer or double)?

Definition at line 707 of file ExprNodeRep.h.

References dtype_p, NTDouble, and NTInt.

virtual CountedPtr<TableExprGroupFuncBase> casacore::TableExprNodeRep::makeGroupAggrFunc ( )
virtual

Create the correct immediate aggregate function object.

The default implementation throws an exception, because it should only be called for TableExprAggrNode(Array).

Reimplemented in casacore::TableExprAggrNode, casacore::TableExprUDFNode, casacore::TableExprUDFNodeArray, and casacore::TableExprAggrNodeArray.

Int casacore::TableExprNodeRep::ndim ( ) const
inline

Get the fixed dimensionality (same for all rows).

Definition at line 741 of file ExprNodeRep.h.

References ndim_p.

uInt casacore::TableExprNodeRep::nrow ( ) const

Get the number of rows in the table associated with this expression.

One is returned if the expression is a constant. Zero is returned if no table is associated with it.

TableExprNodeRep& casacore::TableExprNodeRep::operator= ( const TableExprNodeRep )
private

A copy of a TableExprNodeRep cannot be made.

TableExprNodeRep::OperType casacore::TableExprNodeRep::operType ( ) const
inline

Get the operator type.

Definition at line 719 of file ExprNodeRep.h.

References optype_p.

virtual void casacore::TableExprNodeRep::ranges ( Block< TableExprRange > &  )
virtual

Convert the tree to a number of range vectors which at least select the same things.

This function is very useful to convert the expression to some intervals covering the select expression. This can be used to do a rough fast selection via an index and do the the slower final selection on that much smaller subset. The function can only convert direct comparisons of columns with constants (via ==, !=, >, >=, < or <=) and their combinations using && or ||.

Reimplemented in casacore::TableExprNodeAND, casacore::TableExprNodeOR, casacore::TableExprNodeGEDouble, casacore::TableExprNodeGTDouble, and casacore::TableExprNodeEQDouble.

static TENShPtr casacore::TableExprNodeRep::replaceConstNode ( const TENShPtr node)
static

Replace a node with a constant expression by node with its value.

void casacore::TableExprNodeRep::setAttributes ( const Record attributes)
inline

Set the attributes.

Definition at line 737 of file ExprNodeRep.h.

References attributes(), and attributes_p.

void casacore::TableExprNodeRep::setUnit ( const Unit unit)

Set the unit.

It also sets the datatype to NTDouble if it is NTInt.

void casacore::TableExprNodeRep::setValueType ( TableExprNodeRep::ValueType  vtype)
inline

Set the value type.

Definition at line 715 of file ExprNodeRep.h.

References vtype_p.

const IPosition & casacore::TableExprNodeRep::shape ( ) const
inline

Get the fixed shape (same for all rows).

Definition at line 745 of file ExprNodeRep.h.

References shape_p.

const IPosition& casacore::TableExprNodeRep::shape ( const TableExprId id)

Get the shape for the given row.

It returns the fixed shape if defined, otherwise getShape(id).

virtual void casacore::TableExprNodeRep::show ( ostream &  ,
uInt  indent 
) const
virtual
Table & casacore::TableExprNodeRep::table ( )
inline

Get table.

This gets the Table object to which a TableExprNode belongs. A TableExprNode belongs to the Table to which the first column used in an expression belongs.

Definition at line 749 of file ExprNodeRep.h.

References table_p.

const Table & casacore::TableExprNodeRep::table ( ) const
inline

Definition at line 751 of file ExprNodeRep.h.

References table_p.

static String casacore::TableExprNodeRep::typeString ( NodeDataType  )
static

Convert a NodeDataType to a string.

static String casacore::TableExprNodeRep::typeString ( ValueType  )
static

Convert a ValueType to a string.

const Unit & casacore::TableExprNodeRep::unit ( ) const
inline

Get the unit.

Definition at line 731 of file ExprNodeRep.h.

References unit_p.

TableExprNodeRep::ValueType casacore::TableExprNodeRep::valueType ( ) const
inline

Get the value type.

Definition at line 711 of file ExprNodeRep.h.

References vtype_p.

Referenced by casacore::TableExprGroupAggr::getArray().

Member Data Documentation

ArgType casacore::TableExprNodeRep::argtype_p
protected

Definition at line 475 of file ExprNodeRep.h.

Record casacore::TableExprNodeRep::attributes_p
protected

Definition at line 481 of file ExprNodeRep.h.

Referenced by attributes(), and setAttributes().

NodeDataType casacore::TableExprNodeRep::dtype_p
protected

Definition at line 472 of file ExprNodeRep.h.

Referenced by dataType(), and isReal().

ExprType casacore::TableExprNodeRep::exprtype_p
protected

Definition at line 476 of file ExprNodeRep.h.

Referenced by exprType(), fillExprType(), and isConstant().

Int casacore::TableExprNodeRep::ndim_p
protected

Definition at line 477 of file ExprNodeRep.h.

Referenced by ndim().

OperType casacore::TableExprNodeRep::optype_p
protected

Definition at line 474 of file ExprNodeRep.h.

Referenced by operType().

IPosition casacore::TableExprNodeRep::shape_p
protected

Definition at line 479 of file ExprNodeRep.h.

Referenced by shape().

Table casacore::TableExprNodeRep::table_p
protected

Definition at line 471 of file ExprNodeRep.h.

Referenced by checkTablePtr(), and table().

Unit casacore::TableExprNodeRep::unit_p
protected

Definition at line 480 of file ExprNodeRep.h.

Referenced by unit().

ValueType casacore::TableExprNodeRep::vtype_p
protected

Definition at line 473 of file ExprNodeRep.h.

Referenced by setValueType(), and valueType().


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