org.onosproject.store.primitives.impl

Interface TransactionParticipant

All Known Implementing Classes:

DefaultTransactionalMap

public interface TransactionParticipant

Participant in a two-phase commit protocol.

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	commit() Attempts to execute the commit phase for previously prepared transaction.
boolean	hasPendingUpdates() Returns if this participant has updates that need to be committed.
CompletableFuture<Boolean>	prepare() Executes the prepare phase.
CompletableFuture<Void>	rollback() Attempts to execute the rollback phase for previously prepared transaction.

Method Detail

hasPendingUpdates

boolean hasPendingUpdates()

Returns if this participant has updates that need to be committed.

Returns:

true if yes; false otherwise

prepare

CompletableFuture<Boolean> prepare()

Executes the prepare phase.

Returns:

true is successful; false otherwise

commit

CompletableFuture<Void> commit()

Attempts to execute the commit phase for previously prepared transaction.

Returns:

future that is completed when the operation completes

rollback

CompletableFuture<Void> rollback()

Attempts to execute the rollback phase for previously prepared transaction.

Returns:

future that is completed when the operation completes