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casacore::TableExprGroupCountAll Class Reference

Aggregate class counting number of rows in a group. More...

#include <ExprGroupAggrFunc.h>

Inheritance diagram for casacore::TableExprGroupCountAll:
casacore::TableExprGroupFuncInt casacore::TableExprGroupFuncBase

Public Member Functions

 TableExprGroupCountAll (TableExprNodeRep *node)
 
virtual ~TableExprGroupCountAll ()
 
virtual void apply (const TableExprId &id)
 Get the operand's value for the given row and apply it to the aggregation. More...
 
void setResult (Int64 cnt)
 Set result in case it is known directly. More...
 
- Public Member Functions inherited from casacore::TableExprGroupFuncInt
 TableExprGroupFuncInt (TableExprNodeRep *node, Int64 initValue=0)
 
virtual ~TableExprGroupFuncInt ()
 
virtual Int64 getInt (const vector< TableExprId > &)
 
virtual Double getDouble (const vector< TableExprId > &)
 
- Public Member Functions inherited from casacore::TableExprGroupFuncBase
 TableExprGroupFuncBase (TableExprNodeRep *node)
 Construct from the TaQL aggregation node. More...
 
virtual ~TableExprGroupFuncBase ()
 
virtual Bool isLazy () const
 Does the aggregate function use lazy semantics? The default implementation returns False. More...
 
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 CountedPtr< vector
< TableExprId > > 
getIds () const
 Get the assembled TableExprIds of a group. More...
 
virtual Bool getBool (const vector< TableExprId > &=vector< TableExprId >())
 Get the aggregated value. More...
 
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 >())
 

Additional Inherited Members

- Protected Attributes inherited from casacore::TableExprGroupFuncInt
Int64 itsValue
 
- Protected Attributes inherited from casacore::TableExprGroupFuncBase
TableExprNodeRepitsNode
 
TableExprNodeRepitsOperand
 
uInt itsSeqnr
 

Detailed Description

Aggregate class counting number of rows in a group.

Intended use:

Internal

Review Status

Test programs:
tExprGroup

Synopsis

Aggregate class counting number of rows in a group.

Definition at line 52 of file ExprGroupAggrFunc.h.

Constructor & Destructor Documentation

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

Member Function Documentation

virtual void casacore::TableExprGroupCountAll::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.

void casacore::TableExprGroupCountAll::setResult ( Int64  cnt)
inline

Set result in case it is known directly.

Definition at line 59 of file ExprGroupAggrFunc.h.

References casacore::TableExprGroupFuncInt::itsValue.


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