org.apache.webbeans.spi
Interface SingletonService

public interface SingletonService

Responsible for providing singleton instances for OWB runtime. Provider can implement their own logic to provide singleton instances.

Version:

$Rev$ $Date$

Method Summary

void	clear(Object key) Any clean activity.
Object	get(Object key, String singletonClassName) Get instance for given key and class name.
Object	getExist(Object key, String singletonClassName) Returns exist instance or null.
Object	getKey(Object singleton) Returns key for the given singleton instance.
boolean	isExist(Object key, String singletonClassName) Returns true if singleton exist, false otherwise.

Method Detail

get

Object get(Object key,
           String singletonClassName)

Get instance for given key and class name.

Parameters:

key - instance key

singletonClassName - instance class name

Returns:

instance

clear

void clear(Object key)

Any clean activity.

Parameters:

key - instance key

isExist

boolean isExist(Object key,
                String singletonClassName)

Returns true if singleton exist, false otherwise.

Parameters:

key - instance key

singletonClassName - class name

Returns:

true if singleton exist

getExist

Object getExist(Object key,
                String singletonClassName)

Returns exist instance or null.

Parameters:

key - instance key

singletonClassName - class name

Returns:

exist instance

getKey

Object getKey(Object singleton)

Returns key for the given singleton instance.

Parameters:

singleton - instance

Returns:

key for given instance