Interface TxnHandler

All Known Implementing Classes:

TxnHandlerImpl

public interface TxnHandler

Callbacks for reacting to events during the life cycle management of transactions. The most relevant callback is beforeUnlock(Path, boolean): At this point resources have been written and are in their final location but the lock is still held. This allows one to e.g. safely read the last modified timestamp of a just committed file before another transaction can modify it again.

Method Summary

Modifier and Type	Method	Description
default void	afterPreCommit(Path<String> resKey)
default void	beforePreCommit(Path<String> resKey)
default void	beforeUnlock(Path<String> resKey, boolean isCommit)
default void	end()

Method Details

beforePreCommit

default void beforePreCommit(Path<String> resKey)
                      throws Exception

Throws:

Exception

afterPreCommit

default void afterPreCommit(Path<String> resKey)
                     throws Exception

Throws:

Exception

beforeUnlock

default void beforeUnlock(Path<String> resKey,
 boolean isCommit)
                   throws Exception

Throws:

Exception

end

default void end()