com.bea.wli.config.derivedcache.impl

Class DerivedResourceManagerImpl

java.lang.Object

com.bea.wli.config.derivedcache.impl.DerivedResourceManagerImpl

All Implemented Interfaces:

DerivedResourceManager

public final class DerivedResourceManagerImpl
extends java.lang.Object
implements DerivedResourceManager

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DerivedResourceManagerImpl.CacheStats Statistics about a cache

Constructor Summary

Constructors

Constructor and Description
DerivedResourceManagerImpl(ConfigServiceImpl configService) constructor

Method Summary

Modifier and Type	Method and Description
void	createCache(CacheDescriptor desc) Creates a new cache with the given description
<T> T	get(Ref ref) Returns the derived value associated with the given reference
<T> T	get(Ref ref, boolean recompute)
java.lang.String	getCacheNameForDerivedType(java.lang.String typeId)
DerivedResourceManagerImpl.CacheStats	getCacheStats(java.lang.String cacheName)
ConfigService	getConfigService() returns the associated config service
<T extends DerivedTypeDef> T	getDerivedTypeDef(java.lang.String typeId) Returns the original DerivedTypeDef object that was registered with the given typeId.
DerivedCachesDocument	getDiagnostics() Returns the DFW diagnostics for all the derived caches maintained by the derived resource manager
DerivedCachesDocument	getDiagnostics(java.lang.String typeId) Returns the DFW diagnostics given a DerivedType ID
com.bea.wli.config.derivedcache.impl.EvictionNotifier	getEvictionNotifier() Returns the eviction notifier
com.bea.wli.config.derivedcache.impl.GarbageCollectionNotifier	getGarbageCollectionNotifier() Returns the garbage collection notifier
<T extends DerivedTypeDef> T	getResolvedDerivedTypeDef(java.lang.String typeId) Returns the resolved derived type definition with the given id.
boolean	isDerivedTypeId(java.lang.String typeId) Returns true if the given type id represents a DerivedTypeDef
boolean	isValidRef(Ref ref) Returns true if the derived resource with the given reference valid, i.e., exists
void	registerDerivedType(DerivedTypeDef derivedTypeDef, java.lang.String cacheName) Registers a derived type and assigns it the cache with the given name.
<V> void	registerHardDerivedType(DerivedTypeDef<V> derivedTypeDef) Registers a derived type whose values will be stored using soft references.
<V> void	registerLRUDerivedType(DerivedTypeDef<V> derivedTypeDef, int cacheSize, EvictionHandler<V> handler) Registers a derived type whose values will be stored in an LRU cache and therefore can be evicted from the cache
<V> void	registerMultiLevelDerivedType(DerivedTypeDef<V> derivedTypeDef, int cacheSize, GarbageCollectionHandler<V,?> handler) Creates a multi level cache.
<V> void	registerSoftDerivedType(DerivedTypeDef<V> derivedTypeDef, GarbageCollectionHandler<V,?> handler) Registers a derived type whose values will be stored using soft references.
<V> void	registerWeakDerivedType(DerivedTypeDef<V> derivedTypeDef, GarbageCollectionHandler<V,?> handler) Registers a derived type whose values will be stored using weak references.

Methods inherited from class java.lang.Object

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

Constructor Detail

DerivedResourceManagerImpl

public DerivedResourceManagerImpl(ConfigServiceImpl configService)

constructor

Method Detail

getConfigService

public ConfigService getConfigService()

returns the associated config service

getEvictionNotifier

public com.bea.wli.config.derivedcache.impl.EvictionNotifier getEvictionNotifier()

Returns the eviction notifier

getGarbageCollectionNotifier

public com.bea.wli.config.derivedcache.impl.GarbageCollectionNotifier getGarbageCollectionNotifier()

Returns the garbage collection notifier

createCache

public void createCache(CacheDescriptor desc)

Creates a new cache with the given description

registerDerivedType

public void registerDerivedType(DerivedTypeDef derivedTypeDef,
                                java.lang.String cacheName)

Registers a derived type and assigns it the cache with the given name.

registerHardDerivedType

public <V> void registerHardDerivedType(DerivedTypeDef<V> derivedTypeDef)

Registers a derived type whose values will be stored using soft references.

Specified by:

registerHardDerivedType in interface DerivedResourceManager

Type Parameters:

V - the type of the derived value

Parameters:

derivedTypeDef - the derived type.

registerSoftDerivedType

public <V> void registerSoftDerivedType(DerivedTypeDef<V> derivedTypeDef,
                                        GarbageCollectionHandler<V,?> handler)

Registers a derived type whose values will be stored using soft references.

Specified by:

registerSoftDerivedType in interface DerivedResourceManager

Type Parameters:

V - the type of the derived value

Parameters:

derivedTypeDef - the derived type.

handler - handler to be notified after a derived value has been garbage collected. Can be null.

registerWeakDerivedType

public <V> void registerWeakDerivedType(DerivedTypeDef<V> derivedTypeDef,
                                        GarbageCollectionHandler<V,?> handler)

Registers a derived type whose values will be stored using weak references.

Specified by:

registerWeakDerivedType in interface DerivedResourceManager

Type Parameters:

V - the type of the derived value

Parameters:

derivedTypeDef - the derived type.

handler - handler to be notified after a derived value has been garbage collected. Can be null.

registerLRUDerivedType

public <V> void registerLRUDerivedType(DerivedTypeDef<V> derivedTypeDef,
                                       int cacheSize,
                                       EvictionHandler<V> handler)

Registers a derived type whose values will be stored in an LRU cache and therefore can be evicted from the cache

Specified by:

registerLRUDerivedType in interface DerivedResourceManager

Parameters:

derivedTypeDef - the derived type

cacheSize - the size of the LRU cache

handler - the handler that will be called some time after a derived value has been evicted from the cache. Can be null.

registerMultiLevelDerivedType

public <V> void registerMultiLevelDerivedType(DerivedTypeDef<V> derivedTypeDef,
                                              int cacheSize,
                                              GarbageCollectionHandler<V,?> handler)

Creates a multi level cache. The top level cache is an LRU cache with finite size. The second level cache is an infinitely sized soft cache.

Specified by:

registerMultiLevelDerivedType in interface DerivedResourceManager

Parameters:

derivedTypeDef - the derived type

cacheSize - the size of the LRU cache

handler - handler to be notified after a derived value has been garbage collected. Can be null.

getDerivedTypeDef

public <T extends DerivedTypeDef> T getDerivedTypeDef(java.lang.String typeId)

Returns the original DerivedTypeDef object that was registered with the given typeId. DerivedTypeDef objects may be mangled or further wrapped with other DerivedTypeDef objects by the DerivedResourceManager.

Specified by:

getDerivedTypeDef in interface DerivedResourceManager

getResolvedDerivedTypeDef

public <T extends DerivedTypeDef> T getResolvedDerivedTypeDef(java.lang.String typeId)

Returns the resolved derived type definition with the given id.

isDerivedTypeId

public boolean isDerivedTypeId(java.lang.String typeId)

Returns true if the given type id represents a DerivedTypeDef

Specified by:

isDerivedTypeId in interface DerivedResourceManager

isValidRef

public boolean isValidRef(Ref ref)

Returns true if the derived resource with the given reference valid, i.e., exists

Specified by:

isValidRef in interface DerivedResourceManager

Parameters:

ref - reference to the derived resource

get

public <T> T get(Ref ref)
          throws NotFoundException

Returns the derived value associated with the given reference

Specified by:

get in interface DerivedResourceManager

Parameters:

ref - reference to the derived resource

Throws:

NotFoundException - thrown if the reference does not exist or the derived object could not be computed.

get

public <T> T get(Ref ref,
                 boolean recompute)
          throws NotFoundException

Specified by:

get in interface DerivedResourceManager

Throws:

NotFoundException

getDiagnostics

public DerivedCachesDocument getDiagnostics(java.lang.String typeId)

Returns the DFW diagnostics given a DerivedType ID

Specified by:

getDiagnostics in interface DerivedResourceManager

Parameters:

typeId - the derived type id

getDiagnostics

public DerivedCachesDocument getDiagnostics()

Returns the DFW diagnostics for all the derived caches maintained by the derived resource manager

Specified by:

getDiagnostics in interface DerivedResourceManager

getCacheStats

public DerivedResourceManagerImpl.CacheStats getCacheStats(java.lang.String cacheName)

getCacheNameForDerivedType

public java.lang.String getCacheNameForDerivedType(java.lang.String typeId)