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casacore::TableExprGroupExprId Class Reference

Class derived from TableExprGroupFuncBase collecting the ids in a group. More...

#include <ExprGroup.h>

Inheritance diagram for casacore::TableExprGroupExprId:
casacore::TableExprGroupFuncBase

Public Member Functions

 TableExprGroupExprId (TableExprNodeRep *node)
 
virtual ~TableExprGroupExprId ()
 
virtual Bool isLazy () const
 Does the aggregate function use lazy semantics? The default implementation returns False. More...
 
virtual void apply (const TableExprId &id)
 Get the operand's value for the given row and apply it to the aggregation. More...
 
virtual CountedPtr< vector
< TableExprId > > 
getIds () const
 Get the assembled TableExprIds of a group. More...
 
- Public Member Functions inherited from casacore::TableExprGroupFuncBase
 TableExprGroupFuncBase (TableExprNodeRep *node)
 Construct from the TaQL aggregation node. More...
 
virtual ~TableExprGroupFuncBase ()
 
uInt seqnr () const
 Get the function's sequence nr. More...
 
void setSeqnr (uInt seqnr)
 Set the function's sequence nr. More...
 
virtual void finish ()
 If needed, finish the aggregation. More...
 
virtual Bool getBool (const vector< TableExprId > &=vector< TableExprId >())
 Get the aggregated value. More...
 
virtual Int64 getInt (const vector< TableExprId > &=vector< TableExprId >())
 
virtual Double getDouble (const vector< TableExprId > &=vector< TableExprId >())
 
virtual DComplex getDComplex (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MVTime getDate (const vector< TableExprId > &=vector< TableExprId >())
 
virtual String getString (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< BoolgetArrayBool (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< Int64getArrayInt (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< DoublegetArrayDouble (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< DComplex > getArrayDComplex (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< MVTimegetArrayDate (const vector< TableExprId > &=vector< TableExprId >())
 
virtual MArray< StringgetArrayString (const vector< TableExprId > &=vector< TableExprId >())
 

Private Attributes

CountedPtr< vector< TableExprId > > itsIds
 

Additional Inherited Members

- Protected Attributes inherited from casacore::TableExprGroupFuncBase
TableExprNodeRepitsNode
 
TableExprNodeRepitsOperand
 
uInt itsSeqnr
 

Detailed Description

Class derived from TableExprGroupFuncBase collecting the ids in a group.

Intended use:

Internal

Review Status

Test programs:
tExprGroup

Synopsis

This class keeps all TableExprIds in a group. It is meant for lazy aggregation classes which use the collected TableExprIds in their 'getXXX' functions.

Definition at line 337 of file ExprGroup.h.

Constructor & Destructor Documentation

casacore::TableExprGroupExprId::TableExprGroupExprId ( TableExprNodeRep node)
explicit
virtual casacore::TableExprGroupExprId::~TableExprGroupExprId ( )
virtual

Member Function Documentation

virtual void casacore::TableExprGroupExprId::apply ( const TableExprId id)
virtual

Get the operand's value for the given row and apply it to the aggregation.

This function should not be called for lazy classes.

Implements casacore::TableExprGroupFuncBase.

virtual CountedPtr<vector<TableExprId> > casacore::TableExprGroupExprId::getIds ( ) const
virtual

Get the assembled TableExprIds of a group.

It is specifically meant for TableExprGroupExprId used for lazy aggregation.

Reimplemented from casacore::TableExprGroupFuncBase.

virtual Bool casacore::TableExprGroupExprId::isLazy ( ) const
virtual

Does the aggregate function use lazy semantics? The default implementation returns False.

Reimplemented from casacore::TableExprGroupFuncBase.

Member Data Documentation

CountedPtr<vector<TableExprId> > casacore::TableExprGroupExprId::itsIds
private

Definition at line 346 of file ExprGroup.h.


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