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

java.lang.Object
  de.lmu.ifi.dbs.elki.database.ids.integer.SimpleDBIDFactory
      de.lmu.ifi.dbs.elki.database.ids.integer.ReusingDBIDFactory

All Implemented Interfaces:

DBIDFactory

public class ReusingDBIDFactory
extends SimpleDBIDFactory

Slightly more advanced DBID management, that allows reuse of DBIDs.

Field Summary

(package private) int	dynamicStart Keep track of the lowest unused dynamic DBID
(package private) BitSet	dynamicUsed Bit set to keep track of dynamic DBIDs
private static Logging	logger Logging for error messages.
(package private) ArrayList<IntegerDBIDRange>	returnedAllocations Returned range allocations

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

dynamicids, rangestart

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

FACTORY

Constructor Summary

ReusingDBIDFactory()
Constructor

Method Summary

void	deallocateDBIDRange(DBIDRange range) Deallocate a static DBID range.
void	deallocateSingleDBID(DBID 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.SimpleDBIDFactory

getDBIDSerializer, getDBIDSerializerStatic, getTypeRestriction, importInteger, makePair, newArray, newArray, newArray, newHashSet, newHashSet, newHashSet, newTreeSet, newTreeSet, newTreeSet

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final Logging logger

Logging for error messages.

dynamicUsed

BitSet dynamicUsed

Bit set to keep track of dynamic DBIDs

dynamicStart

int dynamicStart

Keep track of the lowest unused dynamic DBID

returnedAllocations

ArrayList<IntegerDBIDRange> returnedAllocations

Returned range allocations

Constructor Detail

ReusingDBIDFactory

public ReusingDBIDFactory()

Constructor

Method Detail

generateSingleDBID

public DBID generateSingleDBID()

Description copied from interface: DBIDFactory

Generate a single DBID

Specified by:

generateSingleDBID in interface DBIDFactory

Overrides:

generateSingleDBID in class SimpleDBIDFactory

Returns:

A single DBID

deallocateSingleDBID

public void deallocateSingleDBID(DBID id)

Description copied from interface: DBIDFactory

Return a single DBID for reuse.

Specified by:

deallocateSingleDBID in interface DBIDFactory

Overrides:

deallocateSingleDBID in class SimpleDBIDFactory

Parameters:

id - DBID to deallocate

generateStaticDBIDRange

public DBIDRange generateStaticDBIDRange(int size)

Description copied from interface: DBIDFactory

Generate a static DBID range.

Specified by:

generateStaticDBIDRange in interface DBIDFactory

Overrides:

generateStaticDBIDRange in class SimpleDBIDFactory

Parameters:

size - Requested size

Returns:

DBID range

deallocateDBIDRange

public void deallocateDBIDRange(DBIDRange range)

Description copied from interface: DBIDFactory

Deallocate a static DBID range.

Specified by:

deallocateDBIDRange in interface DBIDFactory

Overrides:

deallocateDBIDRange in class SimpleDBIDFactory

Parameters:

range - Range to deallocate