casacore::MSDataDescIndex Class Reference

Class to handle lookup or indexing into a MS DATA_DESC subtable. More...

#include <MSDataDescIndex.h>

Public Member Functions
	MSDataDescIndex (const MSDataDescription &dataDescription)
	Construct from an MS DATA_DESC subtable.
virtual	~MSDataDescIndex ()
	Null destructor.
Vector< Int >	matchSpwId (const Int &spwId)
	Look up DATA_DESC_ID's for a given spectral window id.
Vector< Int >	matchSpwId (const Vector< Int > &spwIds)
Vector< Int >	matchPolId (const Int &polId)
	Look up DATA_DESC_ID's for a given polarization id.
Vector< Int >	matchPolId (const Vector< Int > &polIds)
Vector< Int >	matchSpwIdAndPolznId (const Int &spwId, const Int &polznId)
	Look up DATA_DESC_ID's for a given spectral window and polarization id.
Private Member Functions
	MSDataDescIndex ()
	Disallow null constructor.
Private Attributes
ROMSDataDescColumns	msDataDescCols_p
	DATA_DESC subtable column accessor.
Vector< Int >	dataDescIds_p
	Vector cache of DataDesc id's.
Int	nrows_p

Detailed Description

Class to handle lookup or indexing into a MS DATA_DESC subtable.

Intended use:

Public interface

Review Status

Date Reviewed:: yyyy/mm/dd

Prerequisite

Etymology

From "MeasurementSet", "DATA_DESC subtable" and "index".

Synopsis

This class provides lookup and indexing into an MS DATA_DESC subtable. These services include returning rows numbers (which for the DATA_DESC subtable are DATA_DESC_ID's) associated with specific data in the subtable.

Example

Motivation

Collect together all subtable indexing and lookup for the DATA_DESC subtable, for encapsulation and efficiency.

Thrown Exceptions

Definition at line 82 of file MSDataDescIndex.h.

Constructor & Destructor Documentation

casacore::MSDataDescIndex::MSDataDescIndex ( const MSDataDescription & dataDescription )

Construct from an MS DATA_DESC subtable.

virtual casacore::MSDataDescIndex::~MSDataDescIndex ( ) [inline, virtual]

Null destructor.

Definition at line 89 of file MSDataDescIndex.h.

casacore::MSDataDescIndex::MSDataDescIndex ( ) [private]

Disallow null constructor.

Member Function Documentation

Vector<Int> casacore::MSDataDescIndex::matchPolId ( const Vector< Int > & polIds )

Vector<Int> casacore::MSDataDescIndex::matchPolId ( const Int & polId )

Look up DATA_DESC_ID's for a given polarization id.

Vector<Int> casacore::MSDataDescIndex::matchSpwId ( const Vector< Int > & spwIds )

Vector<Int> casacore::MSDataDescIndex::matchSpwId ( const Int & spwId )

Look up DATA_DESC_ID's for a given spectral window id.

Vector<Int> casacore::MSDataDescIndex::matchSpwIdAndPolznId	(	const Int &	spwId,
		const Int &	polznId
	)

Look up DATA_DESC_ID's for a given spectral window and polarization id.

Member Data Documentation

Vector<Int> casacore::MSDataDescIndex::dataDescIds_p [private]

Vector cache of DataDesc id's.

Definition at line 110 of file MSDataDescIndex.h.

ROMSDataDescColumns casacore::MSDataDescIndex::msDataDescCols_p [private]

DATA_DESC subtable column accessor.

Definition at line 107 of file MSDataDescIndex.h.

Int casacore::MSDataDescIndex::nrows_p [private]

Definition at line 111 of file MSDataDescIndex.h.

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

casacore/ms/MSSel/MSDataDescIndex.h