Abstract base class for aggregate functions giving an integer scalar. More...
#include <ExprGroup.h>
Public Member Functions | |
| 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 | 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 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< Bool > | getArrayBool (const vector< TableExprId > &=vector< TableExprId >()) |
| virtual MArray< Int64 > | getArrayInt (const vector< TableExprId > &=vector< TableExprId >()) |
| virtual MArray< Double > | getArrayDouble (const vector< TableExprId > &=vector< TableExprId >()) |
| virtual MArray< DComplex > | getArrayDComplex (const vector< TableExprId > &=vector< TableExprId >()) |
| virtual MArray< MVTime > | getArrayDate (const vector< TableExprId > &=vector< TableExprId >()) |
| virtual MArray< String > | getArrayString (const vector< TableExprId > &=vector< TableExprId >()) |
Protected Attributes | |
| Int64 | itsValue |
| Protected Attributes inherited from casacore::TableExprGroupFuncBase | |
| TableExprNodeRep * | itsNode |
| TableExprNodeRep * | itsOperand |
| uInt | itsSeqnr |
Detailed Description
Abstract base class for aggregate functions giving an integer 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 an integer 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 498 of file ExprGroup.h.
Constructor & Destructor Documentation
◆ TableExprGroupFuncInt()
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inlineexplicit |
Definition at line 501 of file ExprGroup.h.
◆ ~TableExprGroupFuncInt()
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virtual |
Member Function Documentation
◆ getDouble()
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virtual |
Reimplemented from casacore::TableExprGroupFuncBase.
◆ getInt()
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virtual |
Reimplemented from casacore::TableExprGroupFuncBase.
Member Data Documentation
◆ itsValue
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protected |
Definition at line 509 of file ExprGroup.h.
Referenced by casacore::TableExprGroupCountAll::setResult().
The documentation for this class was generated from the following file:
- tables/TaQL/ExprGroup.h
