org.apache.polygene.entitystore.jdbm

Class JdbmEntityStoreMixin

java.lang.Object

org.apache.polygene.entitystore.jdbm.JdbmEntityStoreMixin

All Implemented Interfaces:

JdbmEntityStoreActivation, BackupRestore, MapEntityStore

public class JdbmEntityStoreMixin
extends Object
implements JdbmEntityStoreActivation, MapEntityStore, BackupRestore

JDBM implementation of MapEntityStore.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.polygene.entitystore.jdbm.JdbmEntityStoreActivation

JdbmEntityStoreActivation.Activator

Nested classes/interfaces inherited from interface org.apache.polygene.spi.entitystore.helpers.MapEntityStore

MapEntityStore.MapChange, MapEntityStore.MapChanger, MapEntityStore.MapChanges

Constructor Summary

Constructors

Constructor and Description
JdbmEntityStoreMixin()

Method Summary

Modifier and Type	Method and Description
void	applyChanges(MapEntityStore.MapChanges changes)
Stream<String>	backup() Backup entity states.
Stream<Reader>	entityStates()
Reader	get(EntityReference entityReference)
void	restore(Stream<String> states) Restore entity states.
void	setUpJdbm()
void	tearDownJdbm()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.polygene.spi.entitystore.BackupRestore

restore

Constructor Detail

JdbmEntityStoreMixin

public JdbmEntityStoreMixin()

Method Detail

setUpJdbm

public void setUpJdbm()
               throws Exception

Specified by:

setUpJdbm in interface JdbmEntityStoreActivation

Throws:

Exception

tearDownJdbm

public void tearDownJdbm()
                  throws Exception

Specified by:

tearDownJdbm in interface JdbmEntityStoreActivation

Throws:

Exception

get

@ReadLock
public Reader get(EntityReference entityReference)
                     throws EntityStoreException

Specified by:

get in interface MapEntityStore

Parameters:

entityReference - The reference to the entity that we want to get.

Returns:

Entity state Reader

Throws:

EntityStoreException

applyChanges

@WriteLock
public void applyChanges(MapEntityStore.MapChanges changes)
                             throws IOException

Specified by:

applyChanges in interface MapEntityStore

Throws:

IOException

entityStates

public Stream<Reader> entityStates()

Specified by:

entityStates in interface MapEntityStore

Returns:

All entities state Readers, must be closed

backup

public Stream<String> backup()

Description copied from interface: BackupRestore

Backup entity states.

Specified by:

backup in interface BackupRestore

Returns:

Stream of serialized entity states, must be closed

restore

public void restore(Stream<String> states)

Description copied from interface: BackupRestore

Restore entity states.

Specified by:

restore in interface BackupRestore

Parameters:

states - Stream of serialized entity states