casacore::MSDataDescIndex Class Reference

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#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
MSDataDescColumns	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

• MeasurementSet
• MSDataDescription

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 79 of file MSDataDescIndex.h.

Constructor & Destructor Documentation

MSDataDescIndex() [1/2]

casacore::MSDataDescIndex::MSDataDescIndex

(

const MSDataDescription &

dataDescription

)

Construct from an MS DATA_DESC subtable.

~MSDataDescIndex()

virtual casacore::MSDataDescIndex::~MSDataDescIndex ( )

inlinevirtual

Null destructor.

Definition at line 86 of file MSDataDescIndex.h.

MSDataDescIndex() [2/2]

casacore::MSDataDescIndex::MSDataDescIndex ( )

private

Disallow null constructor.

Member Function Documentation

matchPolId() [1/2]

Vector< Int > casacore::MSDataDescIndex::matchPolId

(

const Int &

polId

)

Look up DATA_DESC_ID's for a given polarization id.

matchPolId() [2/2]

Vector< Int > casacore::MSDataDescIndex::matchPolId

(

const Vector< Int > &

polIds

)

matchSpwId() [1/2]

Vector< Int > casacore::MSDataDescIndex::matchSpwId

(

const Int &

spwId

)

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

matchSpwId() [2/2]

Vector< Int > casacore::MSDataDescIndex::matchSpwId

(

const Vector< Int > &

spwIds

)

matchSpwIdAndPolznId()

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

dataDescIds_p

Vector<Int> casacore::MSDataDescIndex::dataDescIds_p

private

Vector cache of DataDesc id's.

Definition at line 107 of file MSDataDescIndex.h.

msDataDescCols_p

MSDataDescColumns casacore::MSDataDescIndex::msDataDescCols_p

private

DATA_DESC subtable column accessor.

Definition at line 104 of file MSDataDescIndex.h.

nrows_p

Int casacore::MSDataDescIndex::nrows_p

private

Definition at line 108 of file MSDataDescIndex.h.

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

• ms/MSSel/MSDataDescIndex.h