casacore::ConcatColumn Class Reference

A column in a concatenated table. More...

#include <ConcatColumn.h>

Inheritance diagram for casacore::ConcatColumn:

List of all members.

Public Member Functions
	ConcatColumn (const BaseColumnDesc *, ConcatTable *)
	Construct the ConcatColumn.
	~ConcatColumn ()
virtual Bool	isWritable () const
	Test if the column is writable in the parent table.
virtual Bool	isStored () const
	Test if the column is stored (otherwise it is virtual).
virtual TableRecord &	rwKeywordSet ()
	Get access to the column keyword set.
virtual TableRecord &	keywordSet ()
virtual uInt	nrow () const
	Get nr of rows in the column.
virtual Bool	isDefined (uInt rownr) const
	Test if a value in a particular cell has been defined.
virtual void	setShape (uInt rownr, const IPosition &shape)
	Set the shape of the array in the given row.
virtual void	setShape (uInt rownr, const IPosition &shape, const IPosition &tileShape)
	Set the shape and tile shape of the array in the given row.
virtual uInt	ndimColumn () const
	Get the global #dimensions of an array (i.e.
virtual IPosition	shapeColumn () const
	Get the global shape of an array (i.e.
virtual uInt	ndim (uInt rownr) const
	Get the #dimensions of an array in a particular cell.
virtual IPosition	shape (uInt rownr) const
	Get the shape of an array in a particular cell.
virtual Bool	canChangeShape () const
	It can change shape if the underlying column can.
virtual Bool	canAccessScalarColumn (Bool &reask) const
	It can handle a scalar column if the underlying column can handle cells in a scalar column.
virtual Bool	canAccessArrayColumn (Bool &reask) const
	It can handle an array column if the underlying column can handle cells in an array column.
virtual Bool	canAccessSlice (Bool &reask) const
	It can handle a cell slice if the underlying column can do it.
virtual Bool	canAccessColumnSlice (Bool &reask) const
	It can handle a column slice if the underlying column can handle a collection of cells in a column and a column slice.
virtual Bool	canAccessScalarColumnCells (Bool &reask) const
	It can handle cells in a scalar column if the underlying column can do it.
virtual Bool	canAccessArrayColumnCells (Bool &reask) const
	It can handle cells in an array column if the underlying column can do it.
void	initialize (uInt startRownr, uInt endRownr)
	Initialize the rows from startRownr till endRownr (inclusive) with the default value defined in the column description (if defined).
virtual void	get (uInt rownr, void *dataPtr) const
	Get the value from a particular cell.
virtual void	getSlice (uInt rownr, const Slicer &, void *dataPtr) const
	Get a slice of an N-dimensional array in a particular cell.
virtual void	put (uInt rownr, const void *dataPtr)
	Put the value in a particular cell.
virtual void	putSlice (uInt rownr, const Slicer &, const void *dataPtr)
	Put a slice of an N-dimensional array in a particular cell.
virtual void	getArrayColumn (void *dataPtr) const
	Get the array of all array values in a column.
virtual void	getColumnSlice (const Slicer &, void *dataPtr) const
	Get subsections from all arrays in the column.
virtual void	getArrayColumnCells (const RefRows &rownrs, void *dataPtr) const
	Get the array of some array values in a column.
virtual void	getColumnSliceCells (const RefRows &rownrs, const Slicer &, void *dataPtr) const
	Get subsections from some arrays in the column.
virtual void	putArrayColumn (const void *dataPtr)
	Put the array of all array values in the column.
virtual void	putColumnSlice (const Slicer &, const void *dataPtr)
	Put into subsections of all table arrays in the column.
virtual void	putArrayColumnCells (const RefRows &rownrs, const void *dataPtr)
	Get the array of some array values in a column.
virtual void	putColumnSliceCells (const RefRows &rownrs, const Slicer &, const void *dataPtr)
	Put subsections of some arrays in the column.
virtual ColumnCache &	columnCache ()
	Get the underlying column cache.
virtual void	setMaximumCacheSize (uInt nbytes)
	Set the maximum cache size (in bytes) to be used by a storage manager.
virtual void	allocIterBuf (void *&lastVal, void *&curVal, CountedPtr< BaseCompare > &cmpObj)
	Allocate value buffers for the table iterator.
virtual void	freeIterBuf (void *&lastVal, void *&curVal)
	Free the value buffers allocated by allocIterBuf.
Private Types
typedef void	AccessColumnFunc (BaseColumn *col, const Slicer *, ArrayBase *array)
	Define the function to handle access to an entire column.
typedef void	AccessRowsFunc (BaseColumn *col, const RefRows &rows, const Slicer *, ArrayBase *array)
	Define the function to handle access to a number of rows.
Private Member Functions
void	accessColumn (const Slicer *ns, void *dataPtr, AccessColumnFunc *) const
	Access the data for an entire column.
void	accessRows (const RefRows &rownrs, const Slicer *ns, void *dataPtr, AccessRowsFunc *) const
	Access the data with multiple rows combined.
Static Private Member Functions
static void	getColumnPart (BaseColumn *col, const Slicer *, ArrayBase *arr)
	Define the access functions.
static void	putColumnPart (BaseColumn *col, const Slicer *, ArrayBase *arr)
static void	getColumnSlicePart (BaseColumn *col, const Slicer *ns, ArrayBase *arr)
static void	putColumnSlicePart (BaseColumn *col, const Slicer *ns, ArrayBase *arr)
static void	getRowsPart (BaseColumn *col, const RefRows &rows, const Slicer *, ArrayBase *array)
static void	putRowsPart (BaseColumn *col, const RefRows &rows, const Slicer *, ArrayBase *array)
static void	getRowsSlicePart (BaseColumn *col, const RefRows &rows, const Slicer *, ArrayBase *array)
static void	putRowsSlicePart (BaseColumn *col, const RefRows &rows, const Slicer *, ArrayBase *array)

---

Detailed Description

A column in a concatenated table.

Intended use:

Internal

Review Status

Reviewed By:

UNKNOWN

Prerequisite

• ConcatTable
• BaseColumn

Etymology

ConcatTable represents a column in a ConcatTable. A ConcatTable is a table referencing another table, usually as the result of a select, etc.\.

Synopsis

ConcatColumn handles the access of a column in a ConcatTable. It calls the corresponding function in the referenced column while converting the given row number to the row number in the referenced table.

Motivation

This class is untyped, i.e. not templated. Every call is sent to the underlying referenced BaseColumn which is typed by the virtual function mechanism. A ConcatColumn can never be used directly. A user always has to construct a typed ArrayColumn or ScalarColumn object to access a column. This means everyting is fully type safe.

To Do

• Act upon removal of rows or the underlying column

Definition at line 91 of file ConcatColumn.h.

---

Member Typedef Documentation

typedef void casacore::ConcatColumn::AccessColumnFunc(BaseColumn *col, const Slicer *, ArrayBase *array) [private]

Define the function to handle access to an entire column.

Definition at line 245 of file ConcatColumn.h.

typedef void casacore::ConcatColumn::AccessRowsFunc(BaseColumn *col, const RefRows &rows, const Slicer *, ArrayBase *array) [private]

Define the function to handle access to a number of rows.

Definition at line 249 of file ConcatColumn.h.

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Constructor & Destructor Documentation

casacore::ConcatColumn::ConcatColumn	(	const BaseColumnDesc *	,
		ConcatTable *
	)

Construct the ConcatColumn.

It will point to the given column description, ConcatTable and referenced column. The ConcatTable will be used to convert the rownr to the rownr in the referenced column.

casacore::ConcatColumn::~ConcatColumn

(

)

---

Member Function Documentation

void casacore::ConcatColumn::accessColumn	(	const Slicer *	ns,
		void *	dataPtr,
		AccessColumnFunc *
	)			const [private]

Access the data for an entire column.

void casacore::ConcatColumn::accessRows	(	const RefRows &	rownrs,
		const Slicer *	ns,
		void *	dataPtr,
		AccessRowsFunc *
	)			const [private]

Access the data with multiple rows combined.

virtual void casacore::ConcatColumn::allocIterBuf	(	void *&	lastVal,
		void *&	curVal,
		CountedPtr< BaseCompare > &	cmpObj
	)			[virtual]

Allocate value buffers for the table iterator.

Also get a comparison function if undefined. The function freeIterBuf must be called to free the buffers.

Reimplemented from casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::canAccessArrayColumn

(

Bool &

reask

)

const [virtual]

It can handle an array column if the underlying column can handle cells in an array column.

Reimplemented from casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::canAccessArrayColumnCells

(

Bool &

reask

)

const [virtual]

It can handle cells in an array column if the underlying column can do it.

Reimplemented from casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::canAccessColumnSlice

(

Bool &

reask

)

const [virtual]

It can handle a column slice if the underlying column can handle a collection of cells in a column and a column slice.

Reimplemented from casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::canAccessScalarColumn

(

Bool &

reask

)

const [virtual]

It can handle a scalar column if the underlying column can handle cells in a scalar column.

Reimplemented from casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::canAccessScalarColumnCells

(

Bool &

reask

)

const [virtual]

It can handle cells in a scalar column if the underlying column can do it.

Reimplemented from casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::canAccessSlice

(

Bool &

reask

)

const [virtual]

It can handle a cell slice if the underlying column can do it.

Reimplemented from casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::canChangeShape

(

)

const [virtual]

It can change shape if the underlying column can.

Reimplemented from casacore::BaseColumn.

virtual ColumnCache& casacore::ConcatColumn::columnCache

(

)

[virtual]

Get the underlying column cache.

Implements casacore::BaseColumn.

virtual void casacore::ConcatColumn::freeIterBuf	(	void *&	lastVal,
		void *&	curVal
	)			[virtual]

Free the value buffers allocated by allocIterBuf.

Reimplemented from casacore::BaseColumn.

virtual void casacore::ConcatColumn::get	(	uInt	rownr,
		void *	dataPtr
	)			const [virtual]

Get the value from a particular cell.

This can be a scalar or an array.

Implements casacore::BaseColumn.

virtual void casacore::ConcatColumn::getArrayColumn

(

void *

dataPtr

)

const [virtual]

Get the array of all array values in a column.

If the column contains n-dim arrays, the resulting array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

virtual void casacore::ConcatColumn::getArrayColumnCells	(	const RefRows &	rownrs,
		void *	dataPtr
	)			const [virtual]

Get the array of some array values in a column.

If the column contains n-dim arrays, the resulting array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

static void casacore::ConcatColumn::getColumnPart	(	BaseColumn *	col,
		const Slicer *	,
		ArrayBase *	arr
	)			[static, private]

Define the access functions.

virtual void casacore::ConcatColumn::getColumnSlice	(	const Slicer &	,
		void *	dataPtr
	)			const [virtual]

Get subsections from all arrays in the column.

If the column contains n-dim arrays, the resulting array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

virtual void casacore::ConcatColumn::getColumnSliceCells	(	const RefRows &	rownrs,
		const Slicer &	,
		void *	dataPtr
	)			const [virtual]

Get subsections from some arrays in the column.

If the column contains n-dim arrays, the resulting array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

static void casacore::ConcatColumn::getColumnSlicePart	(	BaseColumn *	col,
		const Slicer *	ns,
		ArrayBase *	arr
	)			[static, private]

static void casacore::ConcatColumn::getRowsPart	(	BaseColumn *	col,
		const RefRows &	rows,
		const Slicer *	,
		ArrayBase *	array
	)			[static, private]

static void casacore::ConcatColumn::getRowsSlicePart	(	BaseColumn *	col,
		const RefRows &	rows,
		const Slicer *	,
		ArrayBase *	array
	)			[static, private]

virtual void casacore::ConcatColumn::getSlice	(	uInt	rownr,
		const Slicer &	,
		void *	dataPtr
	)			const [virtual]

Get a slice of an N-dimensional array in a particular cell.

Reimplemented from casacore::BaseColumn.

void casacore::ConcatColumn::initialize	(	uInt	startRownr,
		uInt	endRownr
	)			[virtual]

Initialize the rows from startRownr till endRownr (inclusive) with the default value defined in the column description (if defined).

Implements casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::isDefined

(

uInt

rownr

)

const [virtual]

Test if a value in a particular cell has been defined.

Implements casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::isStored

(

)

const [virtual]

Test if the column is stored (otherwise it is virtual).

Implements casacore::BaseColumn.

virtual Bool casacore::ConcatColumn::isWritable

(

)

const [virtual]

Test if the column is writable in the parent table.

Implements casacore::BaseColumn.

virtual TableRecord& casacore::ConcatColumn::keywordSet

(

)

[virtual]

Implements casacore::BaseColumn.

virtual uInt casacore::ConcatColumn::ndim

(

uInt

rownr

)

const [virtual]

Get the #dimensions of an array in a particular cell.

Reimplemented from casacore::BaseColumn.

virtual uInt casacore::ConcatColumn::ndimColumn

(

)

const [virtual]

Get the global #dimensions of an array (i.e.

for all rows).

Reimplemented from casacore::BaseColumn.

virtual uInt casacore::ConcatColumn::nrow

(

)

const [virtual]

Get nr of rows in the column.

Implements casacore::BaseColumn.

virtual void casacore::ConcatColumn::put	(	uInt	rownr,
		const void *	dataPtr
	)			[virtual]

Put the value in a particular cell.

This can be a scalar or an array.

Implements casacore::BaseColumn.

virtual void casacore::ConcatColumn::putArrayColumn

(

const void *

dataPtr

)

[virtual]

Put the array of all array values in the column.

If the column contains n-dim arrays, the source array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

virtual void casacore::ConcatColumn::putArrayColumnCells	(	const RefRows &	rownrs,
		const void *	dataPtr
	)			[virtual]

Get the array of some array values in a column.

If the column contains n-dim arrays, the resulting array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

static void casacore::ConcatColumn::putColumnPart	(	BaseColumn *	col,
		const Slicer *	,
		ArrayBase *	arr
	)			[static, private]

virtual void casacore::ConcatColumn::putColumnSlice	(	const Slicer &	,
		const void *	dataPtr
	)			[virtual]

Put into subsections of all table arrays in the column.

If the column contains n-dim arrays, the source array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

virtual void casacore::ConcatColumn::putColumnSliceCells	(	const RefRows &	rownrs,
		const Slicer &	,
		const void *	dataPtr
	)			[virtual]

Put subsections of some arrays in the column.

If the column contains n-dim arrays, the source array is (n+1)-dim. The arrays in the column have to have the same shape in all cells.

Reimplemented from casacore::BaseColumn.

static void casacore::ConcatColumn::putColumnSlicePart	(	BaseColumn *	col,
		const Slicer *	ns,
		ArrayBase *	arr
	)			[static, private]

static void casacore::ConcatColumn::putRowsPart	(	BaseColumn *	col,
		const RefRows &	rows,
		const Slicer *	,
		ArrayBase *	array
	)			[static, private]

static void casacore::ConcatColumn::putRowsSlicePart	(	BaseColumn *	col,
		const RefRows &	rows,
		const Slicer *	,
		ArrayBase *	array
	)			[static, private]

virtual void casacore::ConcatColumn::putSlice	(	uInt	rownr,
		const Slicer &	,
		const void *	dataPtr
	)			[virtual]

Put a slice of an N-dimensional array in a particular cell.

Reimplemented from casacore::BaseColumn.

virtual TableRecord& casacore::ConcatColumn::rwKeywordSet

(

)

[virtual]

Get access to the column keyword set.

The initial keyword set is a copy of the keyword set of the first table.

Implements casacore::BaseColumn.

virtual void casacore::ConcatColumn::setMaximumCacheSize

(

uInt

nbytes

)

[virtual]

Set the maximum cache size (in bytes) to be used by a storage manager.

Implements casacore::BaseColumn.

virtual void casacore::ConcatColumn::setShape	(	uInt	rownr,
		const IPosition &	shape,
		const IPosition &	tileShape
	)			[virtual]

Set the shape and tile shape of the array in the given row.

Reimplemented from casacore::BaseColumn.

virtual void casacore::ConcatColumn::setShape	(	uInt	rownr,
		const IPosition &	shape
	)			[virtual]

Set the shape of the array in the given row.

Reimplemented from casacore::BaseColumn.

virtual IPosition casacore::ConcatColumn::shape

(

uInt

rownr

)

const [virtual]

Get the shape of an array in a particular cell.

Reimplemented from casacore::BaseColumn.

virtual IPosition casacore::ConcatColumn::shapeColumn

(

)

const [virtual]

Get the global shape of an array (i.e.

for all rows).

Reimplemented from casacore::BaseColumn.

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

• casacore/tables/Tables/ConcatColumn.h