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casacore::TableExprNodeBinary Class Reference

Abstract base class for a node having 0, 1, or 2 child nodes. More...

#include <ExprNodeRep.h>

Inheritance diagram for casacore::TableExprNodeBinary:
casacore::TableExprNodeRep 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

Public Member Functions

 TableExprNodeBinary (NodeDataType, ValueType, OperType, const Table &)
 Constructor. More...
 TableExprNodeBinary (NodeDataType, const TableExprNodeRep &, OperType)
virtual ~TableExprNodeBinary ()
 Destructor. More...
virtual void show (ostream &, uInt indent) const
 Show the expression tree. 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...
void setChildren (const TENShPtr &left, const TENShPtr &right, Bool adapt=True)
 Set the children. More...
virtual void handleUnits ()
 Handle the units of the children and possibly set the parent's unit. More...
void adaptDataTypes ()
 If one of the children is a constant, convert its data type to that of the other operand. More...
const TENShPtrgetLeftChild () const
 Get the child nodes. More...
const TENShPtrgetRightChild () const
- 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...
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 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...
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 NodeDataType getDT (NodeDataType leftDtype, NodeDataType rightDype, OperType operType)
 Check the data types and get the common one. More...
static TableExprNodeRep getCommonTypes (const TENShPtr &left, const TENShPtr &right, OperType operType)
 Check the data and value types and get the common one. More...
- Static Public Member Functions inherited from casacore::TableExprNodeRep
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...

Static Protected Member Functions

static const UnitmakeEqualUnits (const TENShPtr &left, TENShPtr &right)
 Make the units equal. More...
- Static Protected Member Functions inherited from casacore::TableExprNodeRep
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

TENShPtr lnode_p
TENShPtr rnode_p
- Protected Attributes inherited from casacore::TableExprNodeRep
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

Additional Inherited Members

- Public Types inherited from casacore::TableExprNodeRep
enum  NodeDataType {
 Define the data types of a node. More...
enum  ValueType {
 Define the value types. More...
enum  OperType {
 Define the operator types. More...
enum  ArgType {
 Define the value types of the 2 arguments when arrays are involved. More...
enum  ExprType {
 Define (sub-)expression type. 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 ()
 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...

Detailed Description

Abstract base class for a node having 0, 1, or 2 child nodes.

Intended use:


Review Status

Reviewed By:
Date Reviewed:



TableExprNodeBinary is a node in the table expression tree representing a binary node (i.e. having up to 2 operands).


TableExprNodeBinary is the abstract base class for all nodes in a table expression tree using up to 2 operands. It is used as the base class for the node classes representing operator +, -, etc..


This class contains the common functionality for the classes representing a binary (or unary) operator.

Definition at line 558 of file ExprNodeRep.h.

Constructor & Destructor Documentation

casacore::TableExprNodeBinary::TableExprNodeBinary ( NodeDataType  ,
ValueType  ,
OperType  ,
const Table  


casacore::TableExprNodeBinary::TableExprNodeBinary ( NodeDataType  ,
const TableExprNodeRep ,
virtual casacore::TableExprNodeBinary::~TableExprNodeBinary ( )


Member Function Documentation

void casacore::TableExprNodeBinary::adaptDataTypes ( )

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

This avoids that conversions are done for each get.

virtual void casacore::TableExprNodeBinary::getAggrNodes ( std::vector< TableExprNodeRep * > &  aggr)

Get the nodes representing an aggregate function.

Reimplemented from casacore::TableExprNodeRep.

Reimplemented in casacore::TableExprUDFNodeArray, casacore::TableExprFuncNodeArray, and casacore::TableExprAggrNodeArray.

virtual void casacore::TableExprNodeBinary::getColumnNodes ( std::vector< TableExprNodeRep * > &  cols)
static TableExprNodeRep casacore::TableExprNodeBinary::getCommonTypes ( const TENShPtr left,
const TENShPtr right,
OperType  operType 

Check the data and value types and get the common one.

static NodeDataType casacore::TableExprNodeBinary::getDT ( NodeDataType  leftDtype,
NodeDataType  rightDype,
OperType  operType 

Check the data types and get the common one.

const TENShPtr& casacore::TableExprNodeBinary::getLeftChild ( ) const

Get the child nodes.

Definition at line 604 of file ExprNodeRep.h.

References lnode_p.

const TENShPtr& casacore::TableExprNodeBinary::getRightChild ( ) const

Definition at line 606 of file ExprNodeRep.h.

References rnode_p.

virtual void casacore::TableExprNodeBinary::handleUnits ( )
static const Unit& casacore::TableExprNodeBinary::makeEqualUnits ( const TENShPtr left,
TENShPtr right 

Make the units equal.

Replace the right node if needed.

void casacore::TableExprNodeBinary::setChildren ( const TENShPtr left,
const TENShPtr right,
Bool  adapt = True 

Set the children.

If needed, their properties like data type and unit are adapted.

virtual void casacore::TableExprNodeBinary::show ( ostream &  ,
uInt  indent 
) const

Show the expression tree.

Reimplemented from casacore::TableExprNodeRep.

Reimplemented in casacore::TableExprNodeArrayPart.

Member Data Documentation

TENShPtr casacore::TableExprNodeBinary::lnode_p

Definition at line 616 of file ExprNodeRep.h.

Referenced by getLeftChild().

TENShPtr casacore::TableExprNodeBinary::rnode_p

Definition at line 617 of file ExprNodeRep.h.

Referenced by getRightChild().

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