Package org.apache.jena.dboe.transaction.txn

Interface TransactionalSystem

All Superinterfaces:
Transactional, Transactional
All Known Implementing Classes:
TransactionalBase
public interface TransactionalSystem extends Transactional
Implementation side of a Transactional. Transactional presents the application facing view whereas this has all the possible steps of an implementation. Normally, the implementation of commit() is split up.

  • Method Details

    • commit

      default void commit()
      Specified by:
      commit in interface Transactional

    • commitPrepare

      void commitPrepare()
      Do the 2-phase "prepare" step after which the transaction coordinator decides whether to commit or abort. A TransactionalSystem must be prepared for both possibilities.

    • commitExec

      void commitExec()
      Do the 2-phase "commit" step

    • detach

      TransactionCoordinatorState detach()
      Suspend this transaction, detaching from the current thread. A new transaction on this thread can performed but the detached transaction still exists and if it is a write transaction it can still block other write transactions.

    • attach

      void attach(TransactionCoordinatorState coordinatorState)
      Attach a transaction to this thread. A transaction system implementation usually imposes a rule that only one thread can have a transaction attached at a time.

    • getTxnMgr

      TransactionCoordinator getTxnMgr()
      Get the associated TransactionCoordinator

    • getTransactionInfo

      TransactionInfo getTransactionInfo()
      Return an information view of the transaction for this thread, if any. Returns null when there is no active transaction for this tread.

    • getThreadTransaction

      Transaction getThreadTransaction()
      Return the transaction object for this thread. Low-level use only. To get information about the current transaction, call getTransactionInfo().