casa::SSMIndStringColumn Class Reference

An Indirect String Array Column in the Standard Storage Manager. More...

#include <SSMIndStringColumn.h>

Inheritance diagram for casa::SSMIndStringColumn:

List of all members.

Public Member Functions
	SSMIndStringColumn (SSMBase *aParent, int aDataType, uInt aColNr)
	Create a SSMIndStringColumn object with the given parent.
virtual	~SSMIndStringColumn ()
virtual void	getArrayStringV (uInt rownr, Array< String > *dataPtr)
	Get an array value in the given row.
virtual void	putArrayStringV (uInt rownr, const Array< String > *dataPtr)
	Put an array value in the given row.
void	setShape (uInt aRowNr, const IPosition &aShape)
	Set the shape of the array in the given row.
virtual IPosition	shape (uInt aRowNr)
	Get the shape of the array in the given row.
Bool	canChangeShape () const
	This storage manager can handle changing array shapes.
virtual Bool	isShapeDefined (uInt aRowNr)
	Is the shape defined (i.e.
virtual uInt	ndim (uInt aRowNr)
	Get the dimensionality of the item in the given row.
Private Member Functions
	SSMIndStringColumn (const SSMIndStringColumn &)
	Forbid copy constructor.
SSMIndStringColumn &	operator= (const SSMIndStringColumn &)
	Forbid assignment.

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Detailed Description

An Indirect String Array Column in the Standard Storage Manager.

Intended use:

Internal

Review Status

Reviewed By:

UNKNOWN

Date Reviewed:

before2004/08/25

Test programs:

tSSMStringHandler

Prerequisite

• SSMBase
• SSMColumn
• SSMStringHandler

Etymology

SSMIndStringColumn represents an Indirect String Array Column in the Standard Storage Manager.

Synopsis

SSMIndStringColumn handles indirect variable shaped string arrays. Note that indirect fixed shape string arrays are handled by SSMDirColumn .

All string array access is handled by class SSMStringHandler , so SSMIndStringColumn is merely an interface to this class. The only thing it does is accessing the bucketnr, offset, and length in the data bucket.

Motivation

The reason that indirect string arrays are handled here instead of in SSMIndColumn is that the string buckets are more disk space efficient when string arrays are frequently updated.

Definition at line 86 of file SSMIndStringColumn.h.

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Constructor & Destructor Documentation

casa::SSMIndStringColumn::SSMIndStringColumn	(	SSMBase *	aParent,
		int	aDataType,
		uInt	aColNr
	)

Create a SSMIndStringColumn object with the given parent.

It initializes the various variables. It keeps the pointer to its parent (but does not own it).

virtual casa::SSMIndStringColumn::~SSMIndStringColumn

(

)

[virtual]

casa::SSMIndStringColumn::SSMIndStringColumn

(

const SSMIndStringColumn &

)

[private]

Forbid copy constructor.

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Member Function Documentation

Bool casa::SSMIndStringColumn::canChangeShape

(

)

const [virtual]

This storage manager can handle changing array shapes.

Reimplemented from casa::DataManagerColumn.

virtual void casa::SSMIndStringColumn::getArrayStringV	(	uInt	rownr,
		Array< String > *	dataPtr
	)		[virtual]

Get an array value in the given row.

An exception is thrown if no array is defined in this row.

Reimplemented from casa::SSMDirColumn.

virtual Bool casa::SSMIndStringColumn::isShapeDefined

(

uInt

aRowNr

)

[virtual]

Is the shape defined (i.e.

is there an array) in this row?

Reimplemented from casa::DataManagerColumn.

virtual uInt casa::SSMIndStringColumn::ndim

(

uInt

aRowNr

)

[virtual]

Get the dimensionality of the item in the given row.

Reimplemented from casa::SSMColumn.

SSMIndStringColumn& casa::SSMIndStringColumn::operator=

(

const SSMIndStringColumn &

)

[private]

Forbid assignment.

virtual void casa::SSMIndStringColumn::putArrayStringV	(	uInt	rownr,
		const Array< String > *	dataPtr
	)		[virtual]

Put an array value in the given row.

Reimplemented from casa::SSMDirColumn.

void casa::SSMIndStringColumn::setShape	(	uInt	aRowNr,
		const IPosition &	aShape
	)		[virtual]

Set the shape of the array in the given row.

Reimplemented from casa::DataManagerColumn.

virtual IPosition casa::SSMIndStringColumn::shape

(

uInt

aRowNr

)

[virtual]

Get the shape of the array in the given row.

Reimplemented from casa::SSMColumn.

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

• casacore/tables/Tables/SSMIndStringColumn.h