org.ogf.graap.wsag.server.api.impl
Class PendingAgreementFacade

java.lang.Object
  org.ogf.graap.wsag.api.types.AgreementDelegator
      org.ogf.graap.wsag.server.api.impl.PendingAgreementFacade

All Implemented Interfaces:

Runnable, Observer, Agreement

public class PendingAgreementFacade
extends AgreementDelegator
implements Runnable, Observer

PendingAgreementFacade

Author:

Oliver Waeldrich

Constructor Summary

PendingAgreementFacade(AgreementOffer offer, AgreementFactory factory, PendingAgreementListener listener, Map<String,Object> context)
Implementation of a pending agreement facade.

Method Summary

void	addObserver(Observer o) Adds a new observer to an agreement that gets notified of agreement state changes.
int	countObservers()
void	deleteObserver(Observer o)
void	deleteObservers()
boolean	hasChanged() Returns true if the content of the agreement has changed, otherwise false.
void	notifyObservers()
void	notifyObservers(Object arg) Notifies all registered observer of an agreement's state change.
void	run()
void	update(Observable o, Object arg)

Methods inherited from class org.ogf.graap.wsag.api.types.AgreementDelegator

getAgreementId, getContext, getDelegator, getExecutionContext, getGuaranteeTermStates, getImplementationClass, getName, getServiceTermStates, getState, getTerms, getTransientExecutionContext, getXMLObject, notifyReload, setAgreementId, setContext, setDelegator, setGuaranteeTermStates, setName, setServiceTermStates, setState, setTerms, setXmlObject, terminate, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

PendingAgreementFacade

public PendingAgreementFacade(AgreementOffer offer,
                              AgreementFactory factory,
                              PendingAgreementListener listener,
                              Map<String,Object> context)

Implementation of a pending agreement facade. The agreement creation is started in a separate process. As long as the agreement creation is in progress, the facades represents the pending agreement. If the agreement creation is successful, the pending agreement is replaced with the real one created by the WSAG4J engine. This is an implementation of the state pattern (GOF).

Parameters:

offer - the agreement offer

factory - the agreement factory

listener - the agreement acceptance client

context - the factory invocation context

Method Detail

hasChanged

public boolean hasChanged()

Description copied from class: AgreementDelegator

Returns true if the content of the agreement has changed, otherwise false.

Specified by:

hasChanged in interface Agreement

Overrides:

hasChanged in class AgreementDelegator

Returns:

See Also:

Observable.hasChanged()

addObserver

public void addObserver(Observer o)

Description copied from class: AgreementDelegator

Adds a new observer to an agreement that gets notified of agreement state changes.

Specified by:

addObserver in interface Agreement

Overrides:

addObserver in class AgreementDelegator

Parameters:

o -

See Also:

Observable.addObserver(java.util.Observer)

deleteObserver

public void deleteObserver(Observer o)

Parameters:

o -

See Also:

Observable.deleteObserver(java.util.Observer)

notifyObservers

public void notifyObservers()

Description copied from class: AgreementDelegator

Specified by:

notifyObservers in interface Agreement

Overrides:

notifyObservers in class AgreementDelegator

See Also:

Observable.notifyObservers()

notifyObservers

public void notifyObservers(Object arg)

Description copied from class: AgreementDelegator

Notifies all registered observer of an agreement's state change.

Specified by:

notifyObservers in interface Agreement

Overrides:

notifyObservers in class AgreementDelegator

Parameters:

arg -

See Also:

Observable.notifyObservers(java.lang.Object)

deleteObservers

public void deleteObservers()

See Also:

Observable.deleteObservers()

countObservers

public int countObservers()

Returns:

See Also:

Observable.countObservers()

run

public void run()

Specified by:

run in interface Runnable

See Also:

Runnable.run()

update

public void update(Observable o,
                   Object arg)

Specified by:

update in interface Observer