A class to provide easy read-only access to MSPolarization columns. More...

#include <MSPolColumns.h>

Inheritance diagram for casa::ROMSPolarizationColumns:

Public Member Functions
	ROMSPolarizationColumns (const MSPolarization &msPolarization)
	Create a columns object that accesses the data in the specified Table.
	~ROMSPolarizationColumns ()
	The destructor does nothing special.
const ROArrayColumn< Int > &	corrProduct () const
	Access to required columns.
const ROArrayColumn< Int > &	corrType () const
const ROScalarColumn< Bool > &	flagRow () const
const ROScalarColumn< Int > &	numCorr () const
uInt	nrow () const
	Convenience function that returns the number of rows in any of the columns.
Int	match (const Vector< Stokes::StokesTypes > &polType, Int tryRow=-1)
	returns the last row that contains the an entry in the CORR_TYPE column that matches, in length and value, the supplied corrType Vector.
Protected Member Functions
	ROMSPolarizationColumns ()
void	attach (const MSPolarization &msPolarization)
Private Member Functions
Bool	matchCorrType (uInt row, const Vector< Int > &polType) const
Bool	matchCorrProduct (uInt row, const Matrix< Int > &polProduct) const
	ROMSPolarizationColumns (const ROMSPolarizationColumns &)
ROMSPolarizationColumns &	operator= (const ROMSPolarizationColumns &)
Private Attributes
ROArrayColumn< Int >	corrProduct_p
ROArrayColumn< Int >	corrType_p
ROScalarColumn< Bool >	flagRow_p
ROScalarColumn< Int >	numCorr_p

Detailed Description

A class to provide easy read-only access to MSPolarization columns.

Intended use:

Public interface

Review Status

Reviewed By:: Bob Garwood
Date Reviewed:: 1997/02/01

Prerequisite

Etymology

ROMSPolarizationColumns stands for Read-Only MeasurementSet Polarization Table columns.

Synopsis

This class provides read-only access to the columns in the MSPolarization Table. It does the declaration of all the Scalar and ArrayColumns with the correct types, so the application programmer doesn't have to worry about getting those right. There is an access function for every predefined column. Access to non-predefined columns will still have to be done with explicit declarations. See ROMSColumns for an example.

Motivation

See MSColumns for the motivation.

Definition at line 75 of file MSPolColumns.h.

Constructor & Destructor Documentation

casa::ROMSPolarizationColumns::ROMSPolarizationColumns ( const MSPolarization & msPolarization )

Create a columns object that accesses the data in the specified Table.

casa::ROMSPolarizationColumns::~ROMSPolarizationColumns ( )

The destructor does nothing special.

casa::ROMSPolarizationColumns::ROMSPolarizationColumns ( ) [protected]

casa::ROMSPolarizationColumns::ROMSPolarizationColumns ( const ROMSPolarizationColumns & ) [private]

Member Function Documentation

void casa::ROMSPolarizationColumns::attach ( const MSPolarization & msPolarization ) [protected]

const ROArrayColumn<Int>& casa::ROMSPolarizationColumns::corrProduct ( ) const [inline]

Access to required columns.

Reimplemented in casa::MSPolarizationColumns.

Definition at line 86 of file MSPolColumns.h.

References corrProduct_p.

const ROArrayColumn<Int>& casa::ROMSPolarizationColumns::corrType ( ) const [inline]

Reimplemented in casa::MSPolarizationColumns.

Definition at line 87 of file MSPolColumns.h.

References corrType_p.

const ROScalarColumn<Bool>& casa::ROMSPolarizationColumns::flagRow ( ) const [inline]

Reimplemented in casa::MSPolarizationColumns.

Definition at line 88 of file MSPolColumns.h.

References flagRow_p.

Int casa::ROMSPolarizationColumns::match	(	const Vector< Stokes::StokesTypes > &	polType,
		Int	tryRow = `-1`
	)

returns the last row that contains the an entry in the CORR_TYPE column that matches, in length and value, the supplied corrType Vector.

Returns -1 if no match could be found. Flagged rows can never match. If tryRow is non-negative, then that row is tested to see if it matches before any others are tested. Setting tryRow to a positive value greater than the table length will throw an exception (AipsError), when compiled in debug mode.