com.hp.hpl.jena.sparql.core

Interface Transactional

All Known Implementing Classes:

DatasetGraphTrackActive, DatasetGraphWithLock, GraphStoreNullTransactional, TransactionalNull

public interface Transactional

Interface that encapulsated begin/abort|commit/close.

The read lifcycle is:

  begin(READ) ... end()

The write lifcycle is:

  begin(WRITE) ... abort() or commit() [end()is optional]

Method Summary

Methods

Modifier and Type	Method and Description
void	abort() Abort a transaction - finish the transaction and undo any changes (if a "write" transaction)
void	begin(ReadWrite readWrite) Start either a READ or WRITE transaction
void	commit() Commit a transaction - finish the transaction and make any changes permanent (if a "write" transaction)
void	end() Finish the transaction - if a write transaction and commit() has not been called, then abort
boolean	isInTransaction() Say whether a transaction is active

Method Detail

begin

void begin(ReadWrite readWrite)

Start either a READ or WRITE transaction

commit

void commit()

Commit a transaction - finish the transaction and make any changes permanent (if a "write" transaction)

abort

void abort()

Abort a transaction - finish the transaction and undo any changes (if a "write" transaction)

isInTransaction

boolean isInTransaction()

Say whether a transaction is active

end

void end()

Finish the transaction - if a write transaction and commit() has not been called, then abort