com.couchbase.lite.support.action

Interface AtomicAction

All Known Implementing Classes:

Action

public interface AtomicAction

An abstraction whose instances can perform some action and back it out.

Method Summary

Modifier and Type	Method and Description
void	backout() Backs out the completed action.
void	cleanup() Cleans up after all actions have completed.
void	perform() Performs the action.

Method Detail

perform

void perform()
      throws ActionException

Performs the action. Behavior should be all-or-nothing: if the action doesn't succeed, it should restore any temporary state to what it was before, before throwing an exception.

Throws:

java.lang.Exception

ActionException

backout

void backout()
      throws ActionException

Backs out the completed action. This will be called if a subsequent action has failed.

Throws:

java.lang.Exception

ActionException

cleanup

void cleanup()
      throws ActionException

Cleans up after all actions have completed. This may involve releasing/deleting any temporary resources being kept around to fulfil a backOut request.

Throws:

java.lang.Exception

ActionException