org.glassfish.hk2.extras.operation

Class OperationContext<T>

java.lang.Object

org.glassfish.hk2.extras.operation.OperationContext<T>

All Implemented Interfaces:

Context<T>

@Contract
public abstract class OperationContext<T>
extends Object
implements Context<T>

The implementation of Context for an Operation.

An operation is defined as a unit of work that can be associated with one or more java threads, but where two operations of the same type may not be associated with the same thread at the same time. Examples of such an operation might be a RequestScope or a TenantRequesteOperation. An operation is a more general concept than the normal Java EE request scope, since it does not require a Java EE container

Users of this API generally create a Scope annotation and extend this class, implementing the Context.getScope() and making sure the parameterized type is the Scope annotation. The Scope annotation for an Operation is usually Proxiable but does not have to be. As with all implementations of Context the subclass of this class must be in the Singleton scope. The user code then uses the OperationManager and OperationHandle to start and stop Operations and to associate and dis-associate threads with Operations

Classes extending this class may also choose to override the method Context.supportsNullCreation() which returns false by default

Author:

jwells

Constructor Summary

Constructors

Constructor and Description
OperationContext()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	containsKey(ActiveDescriptor<?> descriptor)
void	destroyOne(ActiveDescriptor<?> descriptor)
<U> U	findOrCreate(ActiveDescriptor<U> activeDescriptor, ServiceHandle<?> root)
boolean	isActive()
void	setOperationManager(SingleOperationManager manager)
void	shutdown()
boolean	supportsNullCreation()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.glassfish.hk2.api.Context

getScope

Constructor Detail

OperationContext

public OperationContext()

Method Detail

findOrCreate

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

Specified by:

findOrCreate in interface Context<T>

containsKey

public boolean containsKey(ActiveDescriptor<?> descriptor)

Specified by:

containsKey in interface Context<T>

destroyOne

public void destroyOne(ActiveDescriptor<?> descriptor)

Specified by:

destroyOne in interface Context<T>

shutdown

public void shutdown()

Specified by:

shutdown in interface Context<T>

supportsNullCreation

public boolean supportsNullCreation()

Specified by:

supportsNullCreation in interface Context<T>

isActive

public boolean isActive()

Specified by:

isActive in interface Context<T>

setOperationManager

public void setOperationManager(SingleOperationManager manager)

toString

public String toString()

Overrides:

toString in class Object