AipsIO table column storage manager class. More...

#include <StManAipsIO.h>

Inheritance diagram for casacore::StManColumnAipsIO:

Public Member Functions
	StManColumnAipsIO (StManAipsIO *stMan, int dataType, Bool byPtr)
	Create a column of the given type. More...

virtual	~StManColumnAipsIO ()
	Frees up the storage. More...

virtual void	putFile (rownr_t nrval, AipsIO &)
	Write the column data into AipsIO. More...

virtual void	getFile (rownr_t nrval, AipsIO &)
	Read the column data from AipsIO. More...

Public Member Functions inherited from casacore::MSMColumn
	MSMColumn (MSMBase *smptr, int dataType, Bool byPtr)
	Create a column of the given type. More...

virtual	~MSMColumn ()
	Frees up the storage. More...

virtual void	getBool (rownr_t rownr, Bool *dataPtr)
	Get a scalar value in the given row. More...

virtual void	getuChar (rownr_t rownr, uChar *dataPtr)

virtual void	getShort (rownr_t rownr, Short *dataPtr)

virtual void	getuShort (rownr_t rownr, uShort *dataPtr)

virtual void	getInt (rownr_t rownr, Int *dataPtr)

virtual void	getuInt (rownr_t rownr, uInt *dataPtr)

virtual void	getInt64 (rownr_t rownr, Int64 *dataPtr)

virtual void	getfloat (rownr_t rownr, float *dataPtr)

virtual void	getdouble (rownr_t rownr, double *dataPtr)

virtual void	getComplex (rownr_t rownr, Complex *dataPtr)

virtual void	getDComplex (rownr_t rownr, DComplex *dataPtr)

virtual void	getString (rownr_t rownr, String *dataPtr)

virtual void	putBool (rownr_t rownr, const Bool *dataPtr)
	Put a scalar value into the given row. More...

virtual void	putuChar (rownr_t rownr, const uChar *dataPtr)

virtual void	putShort (rownr_t rownr, const Short *dataPtr)

virtual void	putuShort (rownr_t rownr, const uShort *dataPtr)

virtual void	putInt (rownr_t rownr, const Int *dataPtr)

virtual void	putuInt (rownr_t rownr, const uInt *dataPtr)

virtual void	putInt64 (rownr_t rownr, const Int64 *dataPtr)

virtual void	putfloat (rownr_t rownr, const float *dataPtr)

virtual void	putdouble (rownr_t rownr, const double *dataPtr)

virtual void	putComplex (rownr_t rownr, const Complex *dataPtr)

virtual void	putDComplex (rownr_t rownr, const DComplex *dataPtr)

virtual void	putString (rownr_t rownr, const String *dataPtr)

virtual void	getScalarColumnV (ArrayBase &data)
	Get all scalar values in the column. More...

virtual void	putScalarColumnV (const ArrayBase &data)
	Put all scalar values in the column. More...

virtual void	addRow (rownr_t newNrrow, rownr_t oldNrrow)
	Add (newNrrow-oldNrrow) rows to the column. More...

void	resize (rownr_t nrval)
	Resize the data blocks. More...

virtual void	remove (rownr_t rownr)
	Remove the given row. More...

virtual void	doCreate (rownr_t nrrow)
	Create the number of rows in a new table. More...

virtual void	reopenRW ()
	Reopen the storage manager files for read/write. More...

virtual Bool	ok () const
	Check if the class invariants still hold. More...

Public Member Functions inherited from casacore::StManColumnBase
	StManColumnBase (int dataType)
	Default constructor. More...

	~StManColumnBase ()

virtual int	dataType () const
	Return the data type of the column. More...

DataType	dtype () const

Int	elemSize () const
	Return the size of an element of the column's data type. More...

Public Member Functions inherited from casacore::DataManagerColumn
	DataManagerColumn ()
	Create a column. More...

virtual	~DataManagerColumn ()
	Frees up the storage. More...

void	setIsFixedShape (Bool isFixedShape)
	Set the isFixedShape flag. More...

Bool	isFixedShape () const
	Is this a fixed shape column? More...

virtual String	dataTypeId () const
	Get the data type id of the column for dataType==TpOther. More...

virtual Bool	isWritable () const
	Test if data can be put into this column. More...

virtual void	setMaxLength (uInt maxLength)
	Set the maximum length of the value (can be used for strings). More...

void	setFixedShapeColumn (const IPosition &shape)
	Set the shape of all (fixed-shaped) arrays in the column. More...

virtual void	setShape (rownr_t rownr, const IPosition &shape)
	Set the shape of an (variable-shaped) array in the given row. More...

virtual void	setShapeTiled (rownr_t rownr, const IPosition &shape, const IPosition &tileShape)
	Set the shape and tile shape of an (variable-shaped) array in the given row. More...

virtual Bool	isShapeDefined (rownr_t rownr)
	Is the value shape defined in the given row? By default it returns True. More...

virtual uInt	ndim (rownr_t rownr)
	Get the dimensionality of the item in the given row. More...

virtual IPosition	shape (rownr_t rownr)
	Get the shape of the item in the given row. More...

virtual IPosition	tileShape (rownr_t rownr)
	Get the tile shape of the item in the given row. More...

virtual Bool	canChangeShape () const
	Can the data manager handle chaging the shape of an existing array? Default is no. More...

ColumnCache &	columnCache ()
	Get access to the ColumnCache object. More...

const ColumnCache *	columnCachePtr () const

void	get (rownr_t rownr, Bool *dataPtr)
	Get the scalar value in the given row. More...

void	get (rownr_t rownr, uChar *dataPtr)

void	get (rownr_t rownr, Short *dataPtr)

void	get (rownr_t rownr, uShort *dataPtr)

void	get (rownr_t rownr, Int *dataPtr)

void	get (rownr_t rownr, uInt *dataPtr)

void	get (rownr_t rownr, Int64 *dataPtr)

void	get (rownr_t rownr, float *dataPtr)

void	get (rownr_t rownr, double *dataPtr)

void	get (rownr_t rownr, Complex *dataPtr)

void	get (rownr_t rownr, DComplex *dataPtr)

void	get (rownr_t rownr, String *dataPtr)

void	get (rownr_t rownr, void *dataPtr)
	This function is the get for all non-standard data types. More...

void	put (rownr_t rownr, const Bool *dataPtr)
	Put the scalar value into the given row. More...

void	put (rownr_t rownr, const uChar *dataPtr)

void	put (rownr_t rownr, const Short *dataPtr)

void	put (rownr_t rownr, const uShort *dataPtr)

void	put (rownr_t rownr, const Int *dataPtr)

void	put (rownr_t rownr, const uInt *dataPtr)

void	put (rownr_t rownr, const Int64 *dataPtr)

void	put (rownr_t rownr, const float *dataPtr)

void	put (rownr_t rownr, const double *dataPtr)

void	put (rownr_t rownr, const Complex *dataPtr)

void	put (rownr_t rownr, const DComplex *dataPtr)

void	put (rownr_t rownr, const String *dataPtr)

void	put (rownr_t rownr, const void *dataPtr)
	This function is the put for all non-standard data types. More...

virtual void	getScalarColumnCellsV (const RefRows &rownrs, ArrayBase &dataPtr)
	Get some scalar values in the column. More...

virtual void	putScalarColumnCellsV (const RefRows &rownrs, const ArrayBase &dataPtr)
	Put some scalar values in the column. More...

virtual void	getArrayV (rownr_t rownr, ArrayBase &dataPtr)
	Get the array value in the given row. More...

virtual void	putArrayV (rownr_t rownr, const ArrayBase &data)
	Put the array value into the given row. More...

virtual void	getArrayColumnV (ArrayBase &data)
	Get all array values in the column. More...

virtual void	putArrayColumnV (const ArrayBase &data)
	Put all array values in the column. More...

virtual void	getArrayColumnCellsV (const RefRows &rownrs, ArrayBase &data)
	Get some array values in the column. More...

virtual void	putArrayColumnCellsV (const RefRows &rownrs, const ArrayBase &data)
	Put some array values in the column. More...

virtual void	getSliceV (rownr_t rownr, const Slicer &slicer, ArrayBase &data)
	Get a section of the array in the given row. More...

virtual void	putSliceV (rownr_t rownr, const Slicer &slicer, const ArrayBase &data)
	Put into a section of the array in the given row. More...

virtual void	getColumnSliceV (const Slicer &slicer, ArrayBase &data)
	Get a section of all arrays in the column. More...

virtual void	putColumnSliceV (const Slicer &slicer, const ArrayBase &data)
	Put into a section of all arrays in the column. More...

virtual void	getColumnSliceCellsV (const RefRows &rownrs, const Slicer &slicer, ArrayBase &data)
	Get a section of some arrays in the column. More...

virtual void	putColumnSliceCellsV (const RefRows &rownrs, const Slicer &slicer, const ArrayBase &data)
	Put into a section of some arrays in the column. More...

void	throwGet () const
	Throw an "invalid operation" exception for the default implementation of get. More...

void	throwPut () const
	Throw an "invalid operation" exception for the default implementation of put. More...

void	setColumnName (const String &colName)
	Set the column name. More...

const String &	columnName () const
	Get rhe column name. More...

Protected Member Functions
virtual void	initData (void *datap, rownr_t nrval)
	initData does not do anything (only used in MSMColumn). More...

virtual void	putData (void *datap, uInt nrval, AipsIO &)
	Put the data (nrval elements) in an extension (starting at datap) into AipsIO. More...

virtual void	getData (void *datap, uInt index, uInt nrval, AipsIO &, uInt version)
	Get data (nrval elements) into an extension (starting at datap plus the given index). More...

Protected Member Functions inherited from casacore::MSMColumn
uInt	findExt (rownr_t rownr, Bool setCache)
	Find the extension in which the row number is. More...

void *	allocData (rownr_t nrval, Bool byPtr)
	Allocate an extension with the data type of the column. More...

void	deleteAll ()
	Delete all extensions. More...

void	deleteData (void *datap, Bool byPtr)
	Delete an extension. More...

void	removeData (void *datap, rownr_t inx, rownr_t nrvalAfter)
	Remove an entry (i.e. More...

void *	getArrayPtr (rownr_t rownr)
	Get the pointer for the given row. More...

void	putArrayPtr (rownr_t rownr, void *dataPtr)
	Put the pointer for the given row. More...

Protected Member Functions inherited from casacore::DataManagerColumn
virtual void	getOther (rownr_t rownr, void *dataPtr)
	This function is the get for all non-standard data types. More...

virtual void	putOther (rownr_t rownr, const void *dataPtr)
	This function is the put for all non-standard data types. More...

void	getScalarColumnBase (ArrayBase &dataPtr)
	The default implementations of get and put functions. More...

void	putScalarColumnBase (const ArrayBase &dataPtr)

void	getScalarColumnCellsBase (const RefRows &rownrs, ArrayBase &dataPtr)

void	putScalarColumnCellsBase (const RefRows &rownrs, const ArrayBase &dataPtr)

void	getArrayColumnBase (ArrayBase &data)

void	putArrayColumnBase (const ArrayBase &data)

void	getArrayColumnCellsBase (const RefRows &rownrs, ArrayBase &data)

void	putArrayColumnCellsBase (const RefRows &rownrs, const ArrayBase &data)

void	getSliceBase (rownr_t rownr, const Slicer &slicer, ArrayBase &data)

void	putSliceBase (rownr_t rownr, const Slicer &slicer, const ArrayBase &data)

void	getColumnSliceBase (const Slicer &slicer, ArrayBase &data)

void	putColumnSliceBase (const Slicer &slicer, const ArrayBase &data)

void	getColumnSliceCellsBase (const RefRows &rownrs, const Slicer &slicer, ArrayBase &data)

void	putColumnSliceCellsBase (const RefRows &rownrs, const Slicer &slicer, const ArrayBase &data)

Private Member Functions
	StManColumnAipsIO (const StManColumnAipsIO &)
	Forbid copy constructor. More...

StManColumnAipsIO &	operator= (const StManColumnAipsIO &)
	Forbid assignment. More...

Additional Inherited Members
Static Public Member Functions inherited from casacore::StManColumnBase
static Bool	isNativeDataType (int dtype)
	Test if the given data type is supported by storage managers. More...

Protected Attributes inherited from casacore::MSMColumn
MSMBase *	stmanPtr_p

Bool	byPtr_p
	The data is indirectly accessed via a pointer (for the derived classes). More...

rownr_t	nralloc_p
	The number of allocated rows in the column. More...

uInt	nrext_p
	The nr of extensions in use. More...

Block< void * >	data_p
	The assembly of all extensions (actually Block<T*>). More...

Block< rownr_t >	ncum_p
	The cumulative nr of rows in all extensions. More...

Detailed Description

AipsIO table column storage manager class.

Intended use:

Internal

Review Status

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

Prerequisite

DataManagerColumn

Etymology

StManColumnAipsIO handles a column for an AipsIO storage manager.

Synopsis

StManColumnAipsIO is used by StManAipsIO to handle the access to the data in a table column. It is an storage manager based on AipsIO. The entire column is kept in memory and only written when the storage manager closes. When the storage manager gets opened, the entire column gets read back. It fully supports addition and removal of rows.

StManColumnAipsIO serves 2 purposes:

It handles a column containing scalar values.
It serves as a base class for StManArrayColumnAipsIO and StManIndArrayColumnAipsIO. These classes handle arrays and use StManColumnAipsIO to hold a pointer to the array in each row.

StManColumnAipsIO does not hold a column as a consecutive array, because extending the column (i.e. adding rows) proofed be too expensive due to the repeated copying involved when creating a table (this method was used by the old table system). Instead it has a number of data blocks (extensions) indexed to by a super block. Accessing a row means finding the appropriate extension via a binary search. Because there is only 1 extension when a table is read back, the overhead in finding a row is small.

Motivation

StManColumnAipsIO handles the standard data types. The class is not templated, but a switch statement is used instead. Templates would cause too many instantiations.

Definition at line 107 of file StManAipsIO.h.

Constructor & Destructor Documentation

casacore::StManColumnAipsIO::StManColumnAipsIO	(	StManAipsIO *	stMan,
		int	dataType,
		Bool	byPtr
	)

Create a column of the given type.

It will maintain a pointer to its parent storage manager.

virtual casacore::StManColumnAipsIO::~StManColumnAipsIO ( )

virtual

Frees up the storage.

casacore::StManColumnAipsIO::StManColumnAipsIO ( const StManColumnAipsIO & )

private

Forbid copy constructor.

Member Function Documentation

virtual void casacore::StManColumnAipsIO::getData	(	void *	datap,
		uInt	index,
		uInt	nrval,
		AipsIO &	,
		uInt	version
	)

protectedvirtual

Get data (nrval elements) into an extension (starting at datap plus the given index).

Reimplemented in casacore::StManColumnIndArrayAipsIO, and casacore::StManColumnArrayAipsIO.

virtual void casacore::StManColumnAipsIO::getFile	(	rownr_t	nrval,
		AipsIO &
	)

virtual

Read the column data from AipsIO.

One extension gets allocated to hold all rows in the column.

Reimplemented from casacore::MSMColumn.

Reimplemented in casacore::StManColumnIndArrayAipsIO, and casacore::StManColumnArrayAipsIO.

virtual void casacore::StManColumnAipsIO::initData	(	void *	datap,
		rownr_t	nrval
	)

protectedvirtual

initData does not do anything (only used in MSMColumn).

Reimplemented from casacore::MSMColumn.

StManColumnAipsIO& casacore::StManColumnAipsIO::operator= ( const StManColumnAipsIO & )

private

Forbid assignment.

virtual void casacore::StManColumnAipsIO::putData	(	void *	datap,
		uInt	nrval,
		AipsIO &
	)

protectedvirtual

Put the data (nrval elements) in an extension (starting at datap) into AipsIO.

Reimplemented in casacore::StManColumnIndArrayAipsIO, and casacore::StManColumnArrayAipsIO.

virtual void casacore::StManColumnAipsIO::putFile	(	rownr_t	nrval,
		AipsIO &
	)

virtual

Write the column data into AipsIO.

It will successively write all extensions using putData.

Reimplemented from casacore::MSMColumn.

Reimplemented in casacore::StManColumnIndArrayAipsIO, and casacore::StManColumnArrayAipsIO.

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

tables/DataMan/StManAipsIO.h

Public Member Functions

Protected Member Functions

Private Member Functions

Additional Inherited Members

Detailed Description

Intended use:

Review Status

Prerequisite

Etymology

Synopsis

Motivation

Constructor & Destructor Documentation

Member Function Documentation