com.atlassian.bitbucket.util

Interface CancelState

All Known Subinterfaces:

CancelableEvent, PermissionGrantRequestedEvent, PermissionModificationRequestedEvent, PermissionRevocationRequestedEvent

All Known Implementing Classes:

AttachmentDeletionRequestedEvent, AttachmentSaveRequestedEvent, CommitDiscussionCancelableCommentEvent, CommitDiscussionCommentAddRequestedEvent, CommitDiscussionCommentDeletionRequestedEvent, CommitDiscussionCommentModificationRequestedEvent, CommitDiscussionCommentReplyRequestedEvent, GlobalPermissionGrantRequestedEvent, GlobalPermissionModificationRequestedEvent, GlobalPermissionRevocationRequestedEvent, ProjectCreationRequestedEvent, ProjectDeletionRequestedEvent, ProjectModificationRequestedEvent, ProjectPermissionGrantRequestedEvent, ProjectPermissionModificationRequestedEvent, ProjectPermissionRevocationRequestedEvent, PullRequestCancelableCommentEvent, PullRequestCommentAddRequestedEvent, PullRequestCommentDeletionRequestedEvent, PullRequestCommentModificationRequestedEvent, PullRequestCommentReplyRequestedEvent, PullRequestDeletionRequestedEvent, PullRequestOpenRequestedEvent, RepositoryCreationRequestedEvent, RepositoryDeletionRequestedEvent, RepositoryForkRequestedEvent, RepositoryModificationRequestedEvent, RepositoryPermissionGrantRequestedEvent, RepositoryPermissionModificationRequestedEvent, RepositoryPermissionRevocationRequestedEvent

public interface CancelState

Tracks the cancellation state of a cancelable operation.

Once an operation has been canceled, it cannot be "un-canceled". Where multiple observers have the option to cancel an operation, cancellation by any observer should be considered as final and binding; implementations should not require consensus among all observers.

Method Summary

Modifier and Type	Method and Description
void	cancel(KeyedMessage message) Cancels the operation, providing a message explaining why.
boolean	isCanceled() Retrieves a flag indicating whether the operation has been canceled.

Method Detail

cancel

void cancel(@Nonnull
            KeyedMessage message)

Cancels the operation, providing a message explaining why.

The cancellation message is required, and should be as descriptive and clear as possible to allow end users to correct, if possible, the issue that triggered cancellation.

Parameters:

message - a descriptive message explaining why the operation has been canceled

Throws:

NullPointerException - if the provided message is null

isCanceled

boolean isCanceled()

Retrieves a flag indicating whether the operation has been canceled.

In situations where multiple observers have the option to cancel an operation, for example when multiple listeners receive the same CancelableEvent, this flag can be useful for determining that another observer has already canceled the operation.

Returns:

true if the operation has been canceled; otherwise, false