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

Class TrivialDBIDFactory

java.lang.Object

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

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

All Implemented Interfaces:

DBIDFactory

public final class TrivialDBIDFactory
extends AbstractIntegerDBIDFactory

Trivial DBID management, that never reuses IDs and just gives them out in sequence. All IDs will be positive.

Since:

0.4.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.util.concurrent.atomic.AtomicInteger	next Keep track of the smallest dynamic DBID offset not used.

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
TrivialDBIDFactory() Constructor.

Method Summary

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.
DBIDRange	generateStaticDBIDRange(int begin, 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, makeUnmodifiable, newArray, newArray, newArray, newDistanceDBIDList, newDistanceDBIDList, 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

next

java.util.concurrent.atomic.AtomicInteger next

Keep track of the smallest dynamic DBID offset not used.

Constructor Detail

TrivialDBIDFactory

public TrivialDBIDFactory()

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

generateStaticDBIDRange

public DBIDRange generateStaticDBIDRange(int begin,
                                         int size)

Description copied from interface: DBIDFactory

Generate a static DBID range.

Parameters:

begin - Range begin

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