org.jboss.as.ejb3.component.interceptors

Class CancellationFlag

java.lang.Object

org.jboss.as.ejb3.component.interceptors.CancellationFlag

public final class CancellationFlag
extends Object

An invocation cancellation flag.

Author:

David M. Lloyd

Constructor Summary

Constructors

Constructor and Description
CancellationFlag() Construct a new instance.

Method Summary

Modifier and Type	Method and Description
boolean	cancel(boolean setFlag) Attempt to cancel the corresponding invocation.
boolean	isCancelFlagSet() Determine if the cancel flag was set.
boolean	isCancelled() Determine if the request was cancelled before it could complete.
boolean	runIfNotCancelled() Attempt to determine whether the invocation should proceed or whether it should be cancelled.

Methods inherited from class java.lang.Object

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

Constructor Detail

CancellationFlag

public CancellationFlag()

Construct a new instance.

Method Detail

cancel

public boolean cancel(boolean setFlag)

Attempt to cancel the corresponding invocation.

Parameters:

setFlag - true to set the EJB context cancellation flag (or equivalent), false otherwise

Returns:

true if the invocation was definitely cancelled, or false if it was not cancelled or it could not be determined if it was cancelled

runIfNotCancelled

public boolean runIfNotCancelled()

Attempt to determine whether the invocation should proceed or whether it should be cancelled. This method should only be called once per flag instance.

Returns:

true if the invocation should proceed, or false if it was cancelled

isCancelFlagSet

public boolean isCancelFlagSet()

Determine if the cancel flag was set.

Returns:

true if the flag was set, false otherwise

isCancelled

public boolean isCancelled()

Determine if the request was cancelled before it could complete.

Returns:

true if the request was cancelled, false otherwise