com.bea.wli.config.persistence

Class FilePersistenceHandler

java.lang.Object

com.bea.wli.config.persistence.FilePersistenceHandler

All Implemented Interfaces:

LazyPersistenceHandler, PersistenceHandler

public final class FilePersistenceHandler
extends java.lang.Object
implements LazyPersistenceHandler

File based implementation of the persistence context.

Nested Class Summary

Nested classes/interfaces inherited from interface com.bea.wli.config.persistence.LazyPersistenceHandler

LazyPersistenceHandler.MetadataAndValue<V>

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PERSISTED_REP_VERSION_NAME
static int	RESTART_COUNT_BEFORE_ZOMBIES_KILLED

Constructor Summary

Constructors

Constructor and Description
FilePersistenceHandler(ConfigContext cc, TransactionalFileManager fm, java.io.File dataRoot, java.io.File binaryRoot) Constructor

Method Summary

Modifier and Type	Method and Description
void	delete(Ref ref) Deletes a resource
void	dispose() disposes this handler
boolean	exists(Ref ref) Returns true if the resource exists
java.io.File	getDataFile(Ref ref) this is a helper for the DRTs
Metadata[]	getMetadata(java.lang.String typeId) Returns metadata associated with all the resources of the given type (this is called once at startup, does not need to be too efficient)
void	initialize(java.lang.String typeId) initializes the handler for the given type.
void	persist(Metadata md, java.lang.Object canonicalData) Persists the given metadata and the resource data
void	persist(java.util.Set<Ref> deleteSet, java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue> writeMap) persists the following changes
java.lang.Object	readData(Ref ref) reads and returns the canonical data associated with a resource

Methods inherited from class java.lang.Object

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

Field Detail

PERSISTED_REP_VERSION_NAME

public static final java.lang.String PERSISTED_REP_VERSION_NAME

See Also:

Constant Field Values

RESTART_COUNT_BEFORE_ZOMBIES_KILLED

public static final int RESTART_COUNT_BEFORE_ZOMBIES_KILLED

See Also:

Constant Field Values

Constructor Detail

FilePersistenceHandler

public FilePersistenceHandler(ConfigContext cc,
                              TransactionalFileManager fm,
                              java.io.File dataRoot,
                              java.io.File binaryRoot)

Constructor

Method Detail

initialize

public void initialize(java.lang.String typeId)
                throws java.lang.Exception

initializes the handler for the given type.

Specified by:

initialize in interface PersistenceHandler

Throws:

java.lang.Exception

dispose

public void dispose()

disposes this handler

getMetadata

public Metadata[] getMetadata(java.lang.String typeId)
                       throws java.lang.Exception

Returns metadata associated with all the resources of the given type (this is called once at startup, does not need to be too efficient)

Specified by:

getMetadata in interface PersistenceHandler

Throws:

java.lang.Exception

readData

public java.lang.Object readData(Ref ref)
                          throws java.lang.Exception

reads and returns the canonical data associated with a resource

Specified by:

readData in interface PersistenceHandler

Throws:

java.lang.Exception

exists

public boolean exists(Ref ref)

Returns true if the resource exists

Specified by:

exists in interface PersistenceHandler

persist

public void persist(Metadata md,
                    java.lang.Object canonicalData)
             throws java.lang.Exception

Persists the given metadata and the resource data

Specified by:

persist in interface PersistenceHandler

Throws:

java.lang.Exception

delete

public void delete(Ref ref)
            throws java.lang.Exception

Deletes a resource

Specified by:

delete in interface PersistenceHandler

Throws:

java.lang.Exception

persist

public void persist(java.util.Set<Ref> deleteSet,
                    java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue> writeMap)
             throws java.lang.Exception

persists the following changes

Specified by:

persist in interface LazyPersistenceHandler

Throws:

java.lang.Exception

getDataFile

public java.io.File getDataFile(Ref ref)

this is a helper for the DRTs