com.tangosol.coherence.servlet
Class AbstractHttpSessionCollection.ExitObserver

java.lang.Object
  com.tangosol.coherence.servlet.AbstractHttpSessionCollection.ExitObserver

All Implemented Interfaces:

InvocationObserver

Enclosing class:

AbstractHttpSessionCollection

public static class AbstractHttpSessionCollection.ExitObserver
extends Object
implements InvocationObserver

This InvocationObserver waits for an ExitAgent to report back that some server in the cluster did have the specified session id locked.

Constructor Summary

AbstractHttpSessionCollection.ExitObserver()

Method Summary

void	invocationCompleted() This method is called by the InvocationService to inform the InvocationObserver that all service members have either finished the Invocable object execution or are not (or no longer) running the InvocationService.
boolean	isDone() Determine if an agent has reported that the session was unlocked.
void	memberCompleted(Member member, Object oResult) This method is called by the InvocationService to inform the InvocationObserver that a member has finished running the Invocable object; the result of the invocation, if any, is provided to the InvocationObserver.
void	memberFailed(Member member, Throwable eFailure) This method is called by the InvocationService to inform the InvocationObserver that a member has thrown an exception while running the Invocable object.
void	memberLeft(Member member) This method is called by the InvocationService to inform the InvocationObserver that a member that the Invocable object was intended for execution upon has left the service (or the cluster).
protected void	setDone(boolean fDone) Toggle the successful completion (session was unlocked) of any one agent.

Constructor Detail

AbstractHttpSessionCollection.ExitObserver

public AbstractHttpSessionCollection.ExitObserver()

Method Detail

memberCompleted

public void memberCompleted(Member member,
                            Object oResult)

This method is called by the InvocationService to inform the InvocationObserver that a member has finished running the Invocable object; the result of the invocation, if any, is provided to the InvocationObserver. The result will be null if no result is registered by the Invocable object, or if it explicitly registers a result whose value is null.

Specified by:

memberCompleted in interface InvocationObserver

Parameters:

member - cluster Member that has finished the execution of the Invocable object

oResult - the result, if any, of the invocation

memberFailed

public void memberFailed(Member member,
                         Throwable eFailure)

This method is called by the InvocationService to inform the InvocationObserver that a member has thrown an exception while running the Invocable object.

Specified by:

memberFailed in interface InvocationObserver

Parameters:

member - cluster Member that encountered an exception while executing the Invocable object

eFailure - the Throwable object that was encountered

memberLeft

public void memberLeft(Member member)

This method is called by the InvocationService to inform the InvocationObserver that a member that the Invocable object was intended for execution upon has left the service (or the cluster).

It cannot be determined whether the member never received the Invocable object, received and began execution of it and left before finishing, or even completed execution of it without managing to report a result.

Specified by:

memberLeft in interface InvocationObserver

Parameters:

member - cluster Member that left the service before reporting the completion of the execution of the Invocable object

invocationCompleted

public void invocationCompleted()

This method is called by the InvocationService to inform the InvocationObserver that all service members have either finished the Invocable object execution or are not (or no longer) running the InvocationService.

Specified by:

invocationCompleted in interface InvocationObserver

isDone

public boolean isDone()

Determine if an agent has reported that the session was unlocked.

Returns:

true if an agent has reported that the session was unlocked

setDone

protected void setDone(boolean fDone)

Toggle the successful completion (session was unlocked) of any one agent.

Parameters:

fDone - true if an agent reports that the session was unlocked