casacore::TableExprNodeRowid Class Reference

Rowid in table select expression tree. More...

#include <ExprDerNode.h>

Inheritance diagram for casacore::TableExprNodeRowid:

Public Member Functions
	TableExprNodeRowid (const Table &)
	~TableExprNodeRowid ()
virtual void	applySelection (const Vector< uInt > &rownrs)
	Re-create the column object for a selection of rows.
Int64	getInt (const TableExprId &id)
Private Attributes
Vector< uInt >	rownrs_p

Detailed Description

Rowid in table select expression tree.

Intended use:

Internal

Review Status

Reviewed By:: UNKNOWN
Date Reviewed:: before2004/08/25

Prerequisite

TableExprNode

Synopsis

This class represents the rowid() function in a table select expression tree. It is meant to get the original row number in a GIVING clause, but, of course, it can also be used in the SELECT clause. The row number returned is 0-based.

Definition at line 404 of file ExprDerNode.h.

Constructor & Destructor Documentation

casacore::TableExprNodeRowid::TableExprNodeRowid ( const Table & )

casacore::TableExprNodeRowid::~TableExprNodeRowid ( )

Member Function Documentation

virtual void casacore::TableExprNodeRowid::applySelection ( const Vector< uInt > & rownrs ) [virtual]

Re-create the column object for a selection of rows.

The default implementation does nothing.

Reimplemented from casacore::TableExprNodeRep.

Int64 casacore::TableExprNodeRowid::getInt ( const TableExprId & id ) [virtual]

Reimplemented from casacore::TableExprNodeRep.

Member Data Documentation

Vector<uInt> casacore::TableExprNodeRowid::rownrs_p [private]

Definition at line 412 of file ExprDerNode.h.

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

casacore/tables/TaQL/ExprDerNode.h