org.jboss.cache.aop.references
Class PersistentReference

java.lang.Object
  org.jboss.cache.aop.references.PersistentReference

Direct Known Subclasses:

ArgumentPersistentReference, EmptyReference, FieldPersistentReference

public abstract class PersistentReference
extends java.lang.Object

Base class for persistent references. Persistent reference is a Weak/Soft reference to a reflection object. If the reflection object is garbage collected, the reference is then rebuilt using reflection operations.

Author:

csuconic

Field Summary

static int	REFERENCE_SOFT
static int	REFERENCE_WEAK

Constructor Summary

PersistentReference(java.lang.Class clazz, java.lang.Object referencedObject, int referenceType)

Method Summary

protected void	buildReference(java.lang.Object obj) This method should be called from a synchronized block
java.lang.Object	get()
java.lang.Class	getMappedClass()
protected java.lang.Object	internalGet() Checks the reference but doesn't perform rebuild if empty
abstract java.lang.Object	rebuildReference()

Methods inherited from class java.lang.Object

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

Field Detail

REFERENCE_WEAK

public static final int REFERENCE_WEAK

See Also:

Constant Field Values

REFERENCE_SOFT

public static final int REFERENCE_SOFT

See Also:

Constant Field Values

Constructor Detail

PersistentReference

public PersistentReference(java.lang.Class clazz,
                           java.lang.Object referencedObject,
                           int referenceType)

Parameters:

clazz - The clazz being used on this object (where we will do reflection operations)

referencedObject - The reflection object being used

referenceType - if REFERENCE_WEAK will use a WeakReference, and if REFERENCE_SOFT will use a SoftReference for referencedObject

Method Detail

internalGet

protected java.lang.Object internalGet()

Checks the reference but doesn't perform rebuild if empty

get

public java.lang.Object get()

rebuildReference

public abstract java.lang.Object rebuildReference()
                                           throws java.lang.Exception

Throws:

java.lang.Exception

buildReference

protected void buildReference(java.lang.Object obj)

This method should be called from a synchronized block

getMappedClass

public java.lang.Class getMappedClass()