Overview | Package | Class | Tree | Index | Help

Oracle® Coherence Java API Reference
v3.5.3
E15583-01
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## com.tangosol.net
Interface InvocationObserver

All Known Implementing Classes:
  AbstractHttpSessionCollection.ExitObserver, WorkManager.WorkObserver

    public interface InvocationObserver

The InvocationObserver is an object that asynchronously receives notification of results from the execution of Invocable objects.

Since:
  Coherence 2.1
Author:
  cp/gg 2003-02-17

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.
`void` | `memberCompleted(Member member, java.lang.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, java.lang.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).

Method Detail

### memberCompleted

    void memberCompleted(Member member,
                         java.lang.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.

  Parameters:
    `member` - cluster Member that has finished the execution of the Invocable object
    `oResult` - the result, if any, of the invocation

### memberFailed

    void memberFailed(Member member,
                      java.lang.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.

  Parameters:
    `member` - cluster Member that encountered an exception while executing the Invocable object
    `eFailure` - the Throwable object that was encountered

### memberLeft

    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.

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

### invocationCompleted

    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.

Overview | Package | Class | Tree | Index | Help

Oracle® Coherence Java API Reference
v3.5.3
E15583-01
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Copyright © 2000, 2010, Oracle. All rights reserved.