casacore::ConcatRowsIter Class Reference

Class to iterate through a ConcatRows object. More...

#include <ConcatRows.h>

Public Member Functions
	ConcatRowsIter (const ConcatRows &)
	Construct the iterator on a ConcatRows object.
	ConcatRowsIter (const ConcatRows &, rownr_t start, rownr_t end, rownr_t incr=1)
	Construct the iterator on a ConcatRows object for the given row range.
Bool	pastEnd () const
	Is the iterator past the end?
void	operator++ ()
	Go the next chunk.
void	operator++ (int)
void	next ()
RefRows	getChunk () const
	Get the current chunk.
uInt	tableNr () const
	Get the nr of the table the current chunk is in.

Private Attributes
const ConcatRows *	itsRows
Vector< rownr_t >	itsChunk
rownr_t	itsStart
rownr_t	itsEnd
rownr_t	itsIncr
uInt	itsTabNr
Bool	itsPastEnd

Detailed Description

Class to iterate through a ConcatRows object.

Intended use:

Internal

Review Status

Reviewed By:

UNKNOWN

Test programs:

tConcatRows

Prerequisite

• ConcatRows

Synopsis

ConcatRowsSliceIter is useful to iterate through a ConcatRows object. It is possible to define for which row especially if the ConcatRows object contains slices. Each step in the iteration returns a Slice object containing the next slice in the ConcatRows object.
It is used in Table and data manager classes (e.g. StManColumn).

Example

This example shows how to iterate through a ConcatRows object (giving a slice) and through each of the slices.

void somefunc (const ConcatRows& rownrs)
// Iterate through all slices.
ConcatRowsSliceIter rowiter(rownrs);
while (! rowiter.pastEnd()) {
// Get start, end, and increment for this slice.
rownr_t rownr = rowiter.sliceStart();
rownr_t end = rowiter.sliceEnd();
rownr_t incr = rowiter.sliceIncr();
// Iterate through the row numbers in the slice.
while (rownr <= end) {
rownr += incr;
}
// Go to next slice.
rowiter++;
}
}

Definition at line 192 of file ConcatRows.h.

Constructor & Destructor Documentation

ConcatRowsIter() [1/2]

casacore::ConcatRowsIter::ConcatRowsIter ( const ConcatRows & )

explicit

Construct the iterator on a ConcatRows object.

It is set to the full range.

ConcatRowsIter() [2/2]

casacore::ConcatRowsIter::ConcatRowsIter	(	const ConcatRows &	,
		rownr_t	start,
		rownr_t	end,
		rownr_t	incr = 1 )

Construct the iterator on a ConcatRows object for the given row range.

Member Function Documentation

getChunk()

RefRows casacore::ConcatRowsIter::getChunk ( ) const

inline

Get the current chunk.

Definition at line 216 of file ConcatRows.h.

References itsChunk, and casacore::True.

next()

void casacore::ConcatRowsIter::next

(

)

Referenced by operator++(), and operator++().

operator++() [1/2]

void casacore::ConcatRowsIter::operator++ ( )

inline

Go the next chunk.

Definition at line 208 of file ConcatRows.h.

References next().

operator++() [2/2]

void casacore::ConcatRowsIter::operator++ ( int )

inline

Definition at line 210 of file ConcatRows.h.

References next().

pastEnd()

Bool casacore::ConcatRowsIter::pastEnd ( ) const

inline

Is the iterator past the end?

Definition at line 203 of file ConcatRows.h.

References itsPastEnd.

tableNr()

uInt casacore::ConcatRowsIter::tableNr ( ) const

inline

Get the nr of the table the current chunk is in.

Definition at line 220 of file ConcatRows.h.

References itsTabNr.

Member Data Documentation

itsChunk

Vector<rownr_t> casacore::ConcatRowsIter::itsChunk

private

Definition at line 225 of file ConcatRows.h.

Referenced by getChunk().

itsEnd

rownr_t casacore::ConcatRowsIter::itsEnd

private

Definition at line 227 of file ConcatRows.h.

itsIncr

rownr_t casacore::ConcatRowsIter::itsIncr

private

Definition at line 228 of file ConcatRows.h.

itsPastEnd

Bool casacore::ConcatRowsIter::itsPastEnd

private

Definition at line 230 of file ConcatRows.h.

Referenced by pastEnd().

itsRows

const ConcatRows* casacore::ConcatRowsIter::itsRows

private

Definition at line 224 of file ConcatRows.h.

itsStart

rownr_t casacore::ConcatRowsIter::itsStart

private

Definition at line 226 of file ConcatRows.h.

itsTabNr

uInt casacore::ConcatRowsIter::itsTabNr

private

Definition at line 229 of file ConcatRows.h.

Referenced by tableNr().

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

• tables/Tables/ConcatRows.h