com.bea.wli.config.persistence

Class CachePersistenceHandler

java.lang.Object

com.bea.wli.config.persistence.MemoryPersistenceHandler

com.bea.wli.config.persistence.CachePersistenceHandler

All Implemented Interfaces:

LazyPersistenceHandler, PersistenceHandler

Direct Known Subclasses:

DatabasePersistenceHandler

public abstract class CachePersistenceHandler
extends MemoryPersistenceHandler

in-memory caching implementation of the persistence handler.

a handler that is cached should be loaded at startup and only perform write operations, all reads being cached in-memory.

Nested Class Summary

Nested classes/interfaces inherited from class com.bea.wli.config.persistence.MemoryPersistenceHandler

MemoryPersistenceHandler.Data, MemoryPersistenceHandler.TypeData

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

LazyPersistenceHandler.MetadataAndValue<V>

Field Summary

Fields inherited from class com.bea.wli.config.persistence.MemoryPersistenceHandler

_context, _types

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CachePersistenceHandler(ConfigContext context) constructor

Method Summary

Modifier and Type	Method and Description
void	delete(Ref ref) Deletes a resource
protected abstract void	doDelete(Ref ref) performs the backend delete
protected abstract void	doPersist(Ref ref, LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data> data, boolean create) performs the backend persistence
protected abstract void	doPersist(java.util.Set<Ref> deletes, java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data>> creates, java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data>> updates) performs the backend persistence
protected void	load(java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data>> entries) loads the session
protected void	load(Ref ref, Metadata metadata, MemoryPersistenceHandler.Data data) loads the session
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

Methods inherited from class com.bea.wli.config.persistence.MemoryPersistenceHandler

exists, fromCanonical, getData, getDecryptionService, getEncryptionService, getMetadata, getResourceTypeDef, getValueRepresentation, initialize, readData, session, toCanonical

Methods inherited from class java.lang.Object

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

Constructor Detail

CachePersistenceHandler

protected CachePersistenceHandler(ConfigContext context)
                           throws java.lang.Exception

constructor

Throws:

java.lang.Exception

Method Detail

load

protected void load(Ref ref,
                    Metadata metadata,
                    MemoryPersistenceHandler.Data data)

loads the session

load

protected void load(java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data>> entries)

loads the session

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

Overrides:

persist in class MemoryPersistenceHandler

Throws:

java.lang.Exception

doPersist

protected abstract void doPersist(Ref ref,
                                  LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data> data,
                                  boolean create)
                           throws java.lang.Exception

performs the backend persistence

Throws:

java.lang.Exception

delete

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

Deletes a resource

Specified by:

delete in interface PersistenceHandler

Overrides:

delete in class MemoryPersistenceHandler

Throws:

java.lang.Exception

doDelete

protected abstract void doDelete(Ref ref)
                          throws java.lang.Exception

performs the backend delete

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

Overrides:

persist in class MemoryPersistenceHandler

Throws:

java.lang.Exception

doPersist

protected abstract void doPersist(java.util.Set<Ref> deletes,
                                  java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data>> creates,
                                  java.util.Map<Ref,LazyPersistenceHandler.MetadataAndValue<MemoryPersistenceHandler.Data>> updates)
                           throws java.lang.Exception

performs the backend persistence

Throws:

java.lang.Exception