#include <MSTableIndex.h>

Inheritance diagram for casacore::MSTableIndex:

Public Member Functions
	MSTableIndex ()
	no index attached, use the attach function or assignment operator to change that More...

	MSTableIndex (const Table &subTable, const Vector< String > &indexCols, ColumnsIndex::Compare *compareFunction=0)
	construct one using the indicated subtable which is part of the parent MS using the indicated index columns. More...

	MSTableIndex (const MSTableIndex &other)
	construct one from another More...

virtual	~MSTableIndex ()

MSTableIndex &	operator= (const MSTableIndex &other)
	assignment operator, refernce semantics More...

void	attach (const Table &subTable, const Vector< String > &indexCols, ColumnsIndex::Compare *compareFunction=0)
	attach this to a subtable using indexCols More...

virtual void	setChanged ()
	Call this when an index in an existing row has changed. More...

virtual Record &	accessKey ()
	access the record of index (integer) keys More...

virtual Double &	time ()
	access the TIME to use in the search (seconds) More...

virtual Double &	interval ()
	access the INTERVAL to use in the search (seconds), must be >= 0 More...

virtual RowNumbers	getRowNumbers ()
	get all of the rows in the subTable which have data during the indicated time and interval values. More...

virtual Int64	getNearestRow (Bool &found)
	get the row number which falls in the interval and has the time nearest to the center of the interval (time()). More...

virtual Bool	isNull ()
	is this attached to a null table More...

virtual Table &	table ()
	return the subtable being indexed More...

Private Member Functions
void	clear ()

void	makeKeys ()

Bool	keysChanged ()

void	getInternals ()

void	nearestTime ()

Private Attributes
Table	tab_p
	the subtable More...

ScalarColumn< Double >	timeColumn_p

ScalarColumn< Double >	intervalColumn_p

Vector< Double >	timeVec_p

Vector< Double >	intervalVec_p

const Double *	timeVals_p

const Double *	intervalVals_p

Bool	deleteItTime_p

Bool	deleteItInterval_p

Record *	key_p
	Internal keys - set by user. More...

Block< RecordFieldPtr< Int > >	intKeys_p

Double	time_p

Double	interval_p

Vector< Int >	lastKeys_p
	last known integer key values More...

Double	lastTime_p
	last known time and interval More...

Double	lastInterval_p

RowNumbers	lastSearch_p
	last search result - matching integer keys More...

Int64	lastNearest_p
	last nearest More...

Bool	nearestFound_p

Bool	nearestReady_p

rownr_t	nrows_p
	last known sub-table size More...

Bool	hasChanged_p

ColumnsIndex *	index_p

Block< RecordFieldPtr< Int > >	indexKeys_p

Bool	hasTime_p

Bool	hasInterval_p

Detailed Description

Intended use:

Public interface

Review Status

Date Reviewed:: yyyy/mm/dd

Prerequisite

Etymology

Synopsis

Example

Motivation

Thrown Exceptions

To Do

Make the searches smarter - for TIME sorted tables, if the time to search is past the last seach, there's no need to search any earlier times.
Need to handle the INTERVAL=-1 case fully

Definition at line 82 of file MSTableIndex.h.

Constructor & Destructor Documentation

casacore::MSTableIndex::MSTableIndex ( )

no index attached, use the attach function or assignment operator to change that

casacore::MSTableIndex::MSTableIndex	(	const Table &	subTable,
		const Vector< String > &	indexCols,
		ColumnsIndex::Compare *	compareFunction = `0`
	)

construct one using the indicated subtable which is part of the parent MS using the indicated index columns.

All index columns must be scalar integer columns. TIME and INTERVAL will be used when present. A compare function can be provided to over-ride literal matching of column values.

casacore::MSTableIndex::MSTableIndex ( const MSTableIndex & other )

construct one from another

virtual casacore::MSTableIndex::~MSTableIndex ( )

virtual

Member Function Documentation

virtual Record& casacore::MSTableIndex::accessKey ( )

inlinevirtual

access the record of index (integer) keys

Definition at line 112 of file MSTableIndex.h.

References key_p.

void casacore::MSTableIndex::attach	(	const Table &	subTable,
		const Vector< String > &	indexCols,
		ColumnsIndex::Compare *	compareFunction = `0`
	)

attach this to a subtable using indexCols

void casacore::MSTableIndex::clear ( )

private

void casacore::MSTableIndex::getInternals ( )

private

virtual Int64 casacore::MSTableIndex::getNearestRow ( Bool & found )

virtual

get the row number which falls in the interval and has the time nearest to the center of the interval (time()).

This also has the same problem as the previous function.

virtual RowNumbers casacore::MSTableIndex::getRowNumbers ( )

virtual

get all of the rows in the subTable which have data during the indicated time and interval values.

For now, this code will miss the case where the subtable has interval = -1 and the start time is outside of the time range implied by the time and interval. If the table has changed and the time is >

virtual Double& casacore::MSTableIndex::interval ( )

inlinevirtual

access the INTERVAL to use in the search (seconds), must be >= 0

Definition at line 118 of file MSTableIndex.h.

References interval_p.

virtual Bool casacore::MSTableIndex::isNull ( )

inlinevirtual

is this attached to a null table

Definition at line 131 of file MSTableIndex.h.

References casacore::Table::isNull(), and tab_p.

Bool casacore::MSTableIndex::keysChanged ( )

private

void casacore::MSTableIndex::makeKeys ( )

private

void casacore::MSTableIndex::nearestTime ( )

private

MSTableIndex& casacore::MSTableIndex::operator= ( const MSTableIndex & other )

assignment operator, refernce semantics

virtual void casacore::MSTableIndex::setChanged ( )

virtual

Call this when an index in an existing row has changed.

There is no need to call this when new rows are added to the table

virtual Table& casacore::MSTableIndex::table ( )

inlinevirtual

return the subtable being indexed

Definition at line 134 of file MSTableIndex.h.

References tab_p.

virtual Double& casacore::MSTableIndex::time ( )

inlinevirtual

access the TIME to use in the search (seconds)

Definition at line 115 of file MSTableIndex.h.

References time_p.

Member Data Documentation

Bool casacore::MSTableIndex::deleteItInterval_p

private

Definition at line 142 of file MSTableIndex.h.

Bool casacore::MSTableIndex::deleteItTime_p

private

Definition at line 142 of file MSTableIndex.h.

Bool casacore::MSTableIndex::hasChanged_p

private

Definition at line 164 of file MSTableIndex.h.

Bool casacore::MSTableIndex::hasInterval_p

private

Definition at line 168 of file MSTableIndex.h.

Bool casacore::MSTableIndex::hasTime_p

private

Definition at line 168 of file MSTableIndex.h.

ColumnsIndex* casacore::MSTableIndex::index_p

private

Definition at line 166 of file MSTableIndex.h.

Block<RecordFieldPtr<Int> > casacore::MSTableIndex::indexKeys_p

private

Definition at line 167 of file MSTableIndex.h.

Double casacore::MSTableIndex::interval_p

private

Definition at line 147 of file MSTableIndex.h.

Referenced by interval().

ScalarColumn<Double> casacore::MSTableIndex::intervalColumn_p

private

Definition at line 139 of file MSTableIndex.h.

const Double * casacore::MSTableIndex::intervalVals_p

private

Definition at line 141 of file MSTableIndex.h.

Vector<Double> casacore::MSTableIndex::intervalVec_p

private

Definition at line 140 of file MSTableIndex.h.

Block<RecordFieldPtr<Int> > casacore::MSTableIndex::intKeys_p

private

Definition at line 146 of file MSTableIndex.h.

Record* casacore::MSTableIndex::key_p

private

Internal keys - set by user.

Definition at line 145 of file MSTableIndex.h.

Referenced by accessKey().

Double casacore::MSTableIndex::lastInterval_p

private

Definition at line 152 of file MSTableIndex.h.

Vector<Int> casacore::MSTableIndex::lastKeys_p

private

last known integer key values

Definition at line 150 of file MSTableIndex.h.

Int64 casacore::MSTableIndex::lastNearest_p

private

last nearest

Definition at line 158 of file MSTableIndex.h.

RowNumbers casacore::MSTableIndex::lastSearch_p

private

last search result - matching integer keys

Definition at line 155 of file MSTableIndex.h.

Double casacore::MSTableIndex::lastTime_p

private

last known time and interval

Definition at line 152 of file MSTableIndex.h.

Bool casacore::MSTableIndex::nearestFound_p

private

Definition at line 159 of file MSTableIndex.h.

Bool casacore::MSTableIndex::nearestReady_p

private

Definition at line 159 of file MSTableIndex.h.

rownr_t casacore::MSTableIndex::nrows_p

private

last known sub-table size

Definition at line 162 of file MSTableIndex.h.

Table casacore::MSTableIndex::tab_p

private

the subtable

Definition at line 137 of file MSTableIndex.h.

Referenced by isNull(), and table().

Double casacore::MSTableIndex::time_p

private

Definition at line 147 of file MSTableIndex.h.

Referenced by time().

ScalarColumn<Double> casacore::MSTableIndex::timeColumn_p

private

Definition at line 139 of file MSTableIndex.h.

const Double* casacore::MSTableIndex::timeVals_p

private

Definition at line 141 of file MSTableIndex.h.

Vector<Double> casacore::MSTableIndex::timeVec_p

private

Definition at line 140 of file MSTableIndex.h.

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

ms/MSSel/MSTableIndex.h

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Intended use:

Review Status

Prerequisite

Etymology

Synopsis

Example

Motivation

Thrown Exceptions

To Do

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation