oracle.javatools.util.deferred

Class AbstractReferenceThunk<T>

java.lang.Object

oracle.javatools.util.deferred.Thunk<T>

oracle.javatools.util.deferred.AbstractReferenceThunk<T>

Direct Known Subclasses:

OneCallThunk, SoftThunk, WeakThunk

public abstract class AbstractReferenceThunk<T>
extends Thunk<T>

A version of Thunk that provide the infratructure to hold on to the value with a reference and re-create if it has been garbage collected.

Nested Class Summary

Nested classes/interfaces inherited from class oracle.javatools.util.deferred.Thunk

Thunk.ThunkException

Field Summary

Fields

Modifier and Type	Field and Description
protected T	peg
protected java.lang.ref.Reference<T>	reference

Constructor Summary

Constructors

Constructor and Description
AbstractReferenceThunk()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract java.lang.ref.Reference<T>	createReference(T value)
T	get()
protected T	getValue()
protected void	setValue(T value)

Methods inherited from class oracle.javatools.util.deferred.Thunk

compute, directReference, getIfSet, resetState, synchronizedThunk

Methods inherited from class java.lang.Object

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

Field Detail

reference

protected java.lang.ref.Reference<T> reference

peg

protected T peg

Constructor Detail

AbstractReferenceThunk

public AbstractReferenceThunk()

Method Detail

createReference

protected abstract java.lang.ref.Reference<T> createReference(T value)

Parameters:

value -

Returns:

A reference to value

get

public T get()

Overrides:

get in class Thunk<T>

Returns:

The computed value in a single threaded environment this will only create one instance not matter how many times it is called.

getValue

protected T getValue()

Overrides:

getValue in class Thunk<T>

Returns:

The current value, to be override for WeakThunk implementation

setValue

protected void setValue(T value)

Overrides:

setValue in class Thunk<T>