com.bea.wli.config.persistence

Class MemoryPersistenceHandler

java.lang.Object

com.bea.wli.config.persistence.MemoryPersistenceHandler

All Implemented Interfaces:

LazyPersistenceHandler, PersistenceHandler

Direct Known Subclasses:

CachePersistenceHandler

public class MemoryPersistenceHandler
extends java.lang.Object
implements LazyPersistenceHandler

in-memory implementation of the persistence handler.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	MemoryPersistenceHandler.Data Data
protected static class	MemoryPersistenceHandler.TypeData Resources for a particular type

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

LazyPersistenceHandler.MetadataAndValue<V>

Field Summary

Fields

Modifier and Type	Field and Description
protected ConfigContext	_context
protected java.util.Map<java.lang.String,MemoryPersistenceHandler.TypeData>	_types

Constructor Summary

Constructors

Constructor and Description
MemoryPersistenceHandler(ConfigContext context) constructor

Method Summary

Modifier and Type	Method and Description
void	delete(Ref ref) Deletes a resource
boolean	exists(Ref ref) Returns true if the resource exists
protected MemoryPersistenceHandler.Data	fromCanonical(Ref ref, java.lang.Object object) translates the Data from canonical form
protected LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data>	getData(Ref ref) returns the Data info for the given ref
protected PBE_DecryptionService	getDecryptionService() returns the decryption service to use
protected PBE_EncryptionService	getEncryptionService() returns the encryption service to use
Metadata[]	getMetadata(java.lang.String typeId) Returns metadata associated with all the resources of the given type
protected ResourceTypeDef	getResourceTypeDef(java.lang.String typeId)
protected ValueRepresentation	getValueRepresentation(Ref ref) returns the value representation to use for this ref
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> deletes, java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue> writes) persists the following changes
java.lang.Object	readData(Ref ref) reads and returns the canonical data associated with a resource
protected java.lang.String	session() returns the session for this handler
protected java.lang.Object	toCanonical(Ref ref, MemoryPersistenceHandler.Data data) translates the Data to canonical form

Methods inherited from class java.lang.Object

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

Field Detail

_context

protected ConfigContext _context

_types

protected java.util.Map<java.lang.String,MemoryPersistenceHandler.TypeData> _types

Constructor Detail

MemoryPersistenceHandler

public MemoryPersistenceHandler(ConfigContext context)
                         throws java.lang.Exception

constructor

Throws:

java.lang.Exception

Method Detail

initialize

public void initialize(java.lang.String typeId)

initializes the handler for the given type. The type is given here as a handler can be used for multiple types. The initialization is called within the transaction that creates the session.

Specified by:

initialize in interface PersistenceHandler

getMetadata

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

Returns metadata associated with all the resources of the given type

Specified by:

getMetadata 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

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

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> deletes,
                    java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue> writes)
             throws java.lang.Exception

persists the following changes

Specified by:

persist in interface LazyPersistenceHandler

Throws:

java.lang.Exception

session

protected java.lang.String session()

returns the session for this handler

getValueRepresentation

protected ValueRepresentation getValueRepresentation(Ref ref)

returns the value representation to use for this ref

getResourceTypeDef

protected ResourceTypeDef getResourceTypeDef(java.lang.String typeId)

getEncryptionService

protected PBE_EncryptionService getEncryptionService()

returns the encryption service to use

getDecryptionService

protected PBE_DecryptionService getDecryptionService()

returns the decryption service to use

toCanonical

protected java.lang.Object toCanonical(Ref ref,
                                       MemoryPersistenceHandler.Data data)
                                throws java.lang.Exception

translates the Data to canonical form

Throws:

java.lang.Exception

fromCanonical

protected MemoryPersistenceHandler.Data fromCanonical(Ref ref,
                                                      java.lang.Object object)
                                               throws java.lang.Exception

translates the Data from canonical form

Throws:

java.lang.Exception

getData

protected LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data> getData(Ref ref)

returns the Data info for the given ref