de.lmu.ifi.dbs.elki.database.ids.integer

Class SimpleDBIDFactory

java.lang.Object

de.lmu.ifi.dbs.elki.database.ids.integer.AbstractIntegerDBIDFactory

de.lmu.ifi.dbs.elki.database.ids.integer.SimpleDBIDFactory

All Implemented Interfaces:

DBIDFactory

Direct Known Subclasses:

ReusingDBIDFactory

public class SimpleDBIDFactory
extends AbstractIntegerDBIDFactory

Simple DBID management, that never reuses IDs. Statically allocated DBID ranges are given positive values, Dynamically allocated DBIDs are given negative values.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	dynamicids Keep track of the smallest dynamic DBID offset not used.
(package private) int	rangestart The starting point for static DBID range allocations.

Fields inherited from class de.lmu.ifi.dbs.elki.database.ids.integer.AbstractIntegerDBIDFactory

invalid

Fields inherited from interface de.lmu.ifi.dbs.elki.database.ids.DBIDFactory

FACTORY

Constructor Summary

Constructors

Constructor and Description
SimpleDBIDFactory() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	deallocateDBIDRange(DBIDRange range) Deallocate a static DBID range.
void	deallocateSingleDBID(DBIDRef id) Return a single DBID for reuse.
DBID	generateSingleDBID() Generate a single DBID.
DBIDRange	generateStaticDBIDRange(int size) Generate a static DBID range.

Methods inherited from class de.lmu.ifi.dbs.elki.database.ids.integer.AbstractIntegerDBIDFactory

assignVar, compare, equal, getDBIDSerializer, getDBIDSerializerStatic, getTypeRestriction, importInteger, invalid, newArray, newArray, newArray, newDistancePair, newDistancePair, newDoubleDistanceHeap, newHashSet, newHashSet, newHashSet, newHeap, newHeap, newPair, newPair, newVar, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

dynamicids

int dynamicids

Keep track of the smallest dynamic DBID offset not used.

rangestart

int rangestart

The starting point for static DBID range allocations.

Constructor Detail

SimpleDBIDFactory

public SimpleDBIDFactory()

Constructor.

Method Detail

generateSingleDBID

public DBID generateSingleDBID()

Description copied from interface: DBIDFactory

Generate a single DBID.

Returns:

A single DBID

deallocateSingleDBID

public void deallocateSingleDBID(DBIDRef id)

Description copied from interface: DBIDFactory

Return a single DBID for reuse.

Parameters:

id - DBID to deallocate

generateStaticDBIDRange

public DBIDRange generateStaticDBIDRange(int size)

Description copied from interface: DBIDFactory

Generate a static DBID range.

Parameters:

size - Requested size

Returns:

DBID range

deallocateDBIDRange

public void deallocateDBIDRange(DBIDRange range)

Description copied from interface: DBIDFactory

Deallocate a static DBID range.

Parameters:

range - Range to deallocate