Package org.jboss.weld.bootstrap.api

Class SingletonProvider

java.lang.Object

org.jboss.weld.bootstrap.api.SingletonProvider

Direct Known Subclasses:

IsolatedStaticSingletonProvider, RegistrySingletonProvider, TCCLSingletonProvider

public abstract class SingletonProvider
extends Object

A provider of Singletons

Author:

Sanjeeb.Sahoo@Sun.COM, Pete Muir

See Also:

• IsolatedStaticSingletonProvider
• TCCLSingletonProvider
• RegistrySingletonProvider

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SingletonProvider()	Protected constructor.

Method Summary

Modifier and Type	Method	Description
abstract <T> Singleton<T>	create(Class<? extends T> expectedType)	Create a new singleton
static void	initialize(SingletonProvider instance)	Initialize with an explicit instance
static SingletonProvider	instance()	Returns a singleton instance of this class.
static void	reset()	Sets the reference to the singleton instance of this class back to null.

Methods inherited from class java.lang.Object

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

Constructor Details

SingletonProvider

protected SingletonProvider()

Protected constructor. instance() should be used to obtain an instance of this class.

Method Details

instance

public static SingletonProvider instance()

Returns a singleton instance of this class.

Returns:

SingletonProvider instance

create

public abstract <T> Singleton<T> create(Class<? extends T> expectedType)

Create a new singleton

Type Parameters:

T - type of Java object stored in the singleton

Parameters:

expectedType - represents the type of Java object stored in the singleton

Returns:

a singelton

initialize

public static void initialize(SingletonProvider instance)

Initialize with an explicit instance

Parameters:

instance - the explicit instance

reset

public static void reset()

Sets the reference to the singleton instance of this class back to null.