Package org.glassfish.hk2.configuration.internal

Class ConfiguredByContext

java.lang.Object

org.glassfish.hk2.configuration.internal.ConfiguredByContext

All Implemented Interfaces:

Context<ConfiguredBy>

@Singleton
@Visibility(LOCAL)
public class ConfiguredByContext
extends java.lang.Object
implements Context<ConfiguredBy>

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.HashMap<ActiveDescriptor<?>,java.lang.Object>	db
private java.lang.Object	lock
private static java.lang.ThreadLocal<ActiveDescriptor<?>>	workingOn

Constructor Summary

Constructors

Constructor	Description
ConfiguredByContext()

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(ActiveDescriptor<?> descriptor)	Determines if this context has a value for the given key
void	destroyOne(ActiveDescriptor<?> descriptor)	This method is called when ServiceHandle.destroy() method is called.
(package private) java.lang.Object	findOnly(ActiveDescriptor<?> descriptor)
<U> U	findOrCreate(ActiveDescriptor<U> activeDescriptor, ServiceHandle<?> root)	Creates a contextual instance of this ActiveDescriptor by calling its create method if there is no other matching contextual instance.
java.lang.Class<? extends java.lang.annotation.Annotation>	getScope()	The scope for which this is the context
(package private) ActiveDescriptor<?>	getWorkingOn()
private <U> U	internalFindOrCreate(ActiveDescriptor<U> activeDescriptor, ServiceHandle<?> root)
boolean	isActive()	True if this context is active, false otherwise
void	shutdown()	Shut down this context.
boolean	supportsNullCreation()	Returns true if the findOrCreate method can return null

Methods inherited from class java.lang.Object

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

Field Detail

workingOn

private static final java.lang.ThreadLocal<ActiveDescriptor<?>> workingOn

lock

private final java.lang.Object lock

db

private final java.util.HashMap<ActiveDescriptor<?>,java.lang.Object> db

Constructor Detail

ConfiguredByContext

public ConfiguredByContext()

Method Detail

getScope

public java.lang.Class<? extends java.lang.annotation.Annotation> getScope()

Description copied from interface: Context

The scope for which this is the context

Specified by:

getScope in interface Context<ConfiguredBy>

Returns:

may not return null, must return the scope for which this is a context

findOrCreate

public <U> U findOrCreate(ActiveDescriptor<U> activeDescriptor,
                          ServiceHandle<?> root)

Description copied from interface: Context

Creates a contextual instance of this ActiveDescriptor by calling its create method if there is no other matching contextual instance. If there is already a contextual instance it is returned. If parent is null then this must work like the find call

Specified by:

findOrCreate in interface Context<ConfiguredBy>

Parameters:

activeDescriptor - The descriptor to use when creating instances

root - The extended provider for the outermost parent being created

Returns:

A context instance. This value may NOT be null

internalFindOrCreate

private <U> U internalFindOrCreate(ActiveDescriptor<U> activeDescriptor,
                                   ServiceHandle<?> root)

containsKey

public boolean containsKey(ActiveDescriptor<?> descriptor)

Description copied from interface: Context

Determines if this context has a value for the given key

Specified by:

containsKey in interface Context<ConfiguredBy>

Parameters:

descriptor - The descriptor to look for in this context

Returns:

true if this context has a value associated with this descriptor

destroyOne

public void destroyOne(ActiveDescriptor<?> descriptor)

Description copied from interface: Context

This method is called when ServiceHandle.destroy() method is called. It is up to the context implementation whether or not to honor this destruction request based on the lifecycle requirements of the context

Specified by:

destroyOne in interface Context<ConfiguredBy>

Parameters:

descriptor - A non-null descriptor upon which ServiceHandle.destroy() has been called

supportsNullCreation

public boolean supportsNullCreation()

Description copied from interface: Context

Returns true if the findOrCreate method can return null

Specified by:

supportsNullCreation in interface Context<ConfiguredBy>

Returns:

true if null is a legal value from the findOrCreate method

isActive

public boolean isActive()

Description copied from interface: Context

True if this context is active, false otherwise

Specified by:

isActive in interface Context<ConfiguredBy>

Returns:

true if this context is active, false otherwise

shutdown

public void shutdown()

Description copied from interface: Context

Shut down this context.

Specified by:

shutdown in interface Context<ConfiguredBy>

getWorkingOn

ActiveDescriptor<?> getWorkingOn()

findOnly

java.lang.Object findOnly(ActiveDescriptor<?> descriptor)