Package com.orientechnologies.orient.core.cache

Class ORecordCacheSoftRefs

java.lang.Object

com.orientechnologies.orient.core.cache.OAbstractMapCache<OSoftRefsHashMap<ORID,ORecord>>

com.orientechnologies.orient.core.cache.ORecordCacheSoftRefs

All Implemented Interfaces:

ORecordCache

public class ORecordCacheSoftRefs
extends OAbstractMapCache<OSoftRefsHashMap<ORID,ORecord>>
implements ORecordCache

Cache implementation that uses Soft References.

Author:

Luca Garulli (l.garulli--(at)--orientdb.com) (l.garulli-at-orientdb.com)

Field Summary

Fields inherited from class com.orientechnologies.orient.core.cache.OAbstractMapCache

cache

Constructor Summary

Constructors

Constructor	Description
ORecordCacheSoftRefs()

Method Summary

Modifier and Type	Method	Description
void	clear()	Remove all records from cache
void	clearRecords()
ORecord	get(ORID rid)	Look up for record in cache by it's identifier
ORecord	put(ORecord record)	Push record to cache.
ORecord	remove(ORID rid)	Remove record with specified identifier
void	shutdown()	All operations running at cache destruction stage

Methods inherited from class com.orientechnologies.orient.core.cache.OAbstractMapCache

disable, enable, isEnabled, keys, size, startup

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.orientechnologies.orient.core.cache.ORecordCache

disable, enable, isEnabled, keys, size, startup

Constructor Details

ORecordCacheSoftRefs

public ORecordCacheSoftRefs()

Method Details

get

public ORecord get(ORID rid)

Description copied from interface: ORecordCache

Look up for record in cache by it's identifier

Specified by:

get in interface ORecordCache

Parameters:

rid - unique identifier of record

Returns:

record stored in cache if any, otherwise - null

put

public ORecord put(ORecord record)

Description copied from interface: ORecordCache

Push record to cache. Identifier of record used as access key

Specified by:

put in interface ORecordCache

Parameters:

record - record that should be cached

Returns:

previous version of record

remove

public ORecord remove(ORID rid)

Description copied from interface: ORecordCache

Remove record with specified identifier

Specified by:

remove in interface ORecordCache

Parameters:

rid - unique identifier of record

Returns:

record stored in cache if any, otherwise - null

shutdown

public void shutdown()

Description copied from interface: ORecordCache

All operations running at cache destruction stage

Specified by:

shutdown in interface ORecordCache

Overrides:

shutdown in class OAbstractMapCache<OSoftRefsHashMap<ORID,ORecord>>

clear

public void clear()

Description copied from interface: ORecordCache

Remove all records from cache

Specified by:

clear in interface ORecordCache

Overrides:

clear in class OAbstractMapCache<OSoftRefsHashMap<ORID,ORecord>>

clearRecords

public void clearRecords()

Specified by:

clearRecords in interface ORecordCache