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casacore::TableExprGroupFuncBool Class Reference

Abstract base class for aggregate functions giving a bool scalar. More...

#include <ExprGroup.h>

Inheritance diagram for casacore::TableExprGroupFuncBool:
casacore::TableExprGroupFuncBase casacore::TableExprGroupAll casacore::TableExprGroupAny casacore::TableExprGroupArrayAll casacore::TableExprGroupArrayAny

Public Member Functions

 TableExprGroupFuncBool (TableExprNodeRep *node)
 
 TableExprGroupFuncBool (TableExprNodeRep *node, Bool initValue)
 
virtual ~TableExprGroupFuncBool ()
 
virtual Bool getBool (const vector< TableExprId > &)
 Get the aggregated value. More...
 
- 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 apply (const TableExprId &id)=0
 Get the operand's value for the given row and apply it to the aggregation. 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 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 >())
 

Protected Attributes

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

Detailed Description

Abstract base class for aggregate functions giving a bool scalar.

Intended use:

Internal

Review Status

Test programs:
tExprGroup

Synopsis

This class is derived from TableExprGroupFuncBase and acts as the abstract base class for aggregate functions resulting in a bool scalar.
Derived classes can use itsValue to contain the aggregated value. It that case they do not need to implement the get function.

Definition at line 469 of file ExprGroup.h.

Constructor & Destructor Documentation

casacore::TableExprGroupFuncBool::TableExprGroupFuncBool ( TableExprNodeRep node)
inlineexplicit

Definition at line 472 of file ExprGroup.h.

casacore::TableExprGroupFuncBool::TableExprGroupFuncBool ( TableExprNodeRep node,
Bool  initValue 
)
inline

Definition at line 475 of file ExprGroup.h.

virtual casacore::TableExprGroupFuncBool::~TableExprGroupFuncBool ( )
virtual

Member Function Documentation

virtual Bool casacore::TableExprGroupFuncBool::getBool ( const vector< TableExprId > &  )
virtual

Get the aggregated value.

Immediate classes can return the already calculated value, while lazy classes will get the values of all rows given by the TableExprIds and do the aggregation.

Reimplemented from casacore::TableExprGroupFuncBase.

Member Data Documentation

Bool casacore::TableExprGroupFuncBool::itsValue
protected

Definition at line 482 of file ExprGroup.h.


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