How to use org.camunda.bpm.engine.impl.cfg.standalone

protected void initTransactionContextFactory() {
 if (transactionContextFactory == null) {
  transactionContextFactory = new StandaloneTransactionContextFactory();
 }
}

 public TransactionContext openTransactionContext(CommandContext commandContext) {
  return new StandaloneTransactionContext(commandContext);
 }
}

protected void fireTransactionEventAsync(final TransactionState transactionState) {
 super.fireTransactionEvent(transactionState);
}

public void commit() {
 LOG.debugTransactionOperation("firing event committing...");
 fireTransactionEvent(TransactionState.COMMITTING);
 LOG.debugTransactionOperation("committing the persistence session...");
 getPersistenceProvider().commit();
 LOG.debugTransactionOperation("firing event committed...");
 fireTransactionEvent(TransactionState.COMMITTED);
}

protected void fireTransactionEvent(TransactionState transactionState) {
 this.setLastTransactionState(transactionState);
 if (stateTransactionListeners==null) {
  return;
 }
 List<TransactionListener> transactionListeners = stateTransactionListeners.get(transactionState);
 if (transactionListeners==null) {
  return;
 }
 for (TransactionListener transactionListener: transactionListeners) {
  transactionListener.execute(commandContext);
 }
}

  @Override
  public boolean isTransactionActive() {
    try {
      return super.isTransactionActive()
          && testTransaction.getStatus() != Status.STATUS_NO_TRANSACTION;
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
}

public void commit() {
 LOG.debugTransactionOperation("firing event committing...");
 fireTransactionEvent(TransactionState.COMMITTING);
 LOG.debugTransactionOperation("committing the persistence session...");
 getPersistenceProvider().commit();
 LOG.debugTransactionOperation("firing event committed...");
 fireTransactionEvent(TransactionState.COMMITTED);
}

protected void initTransactionContextFactory() {
 if (transactionContextFactory == null) {
  transactionContextFactory = new StandaloneTransactionContextFactory();
 }
}

protected void fireTransactionEventAsync(final TransactionState transactionState) {
 super.fireTransactionEvent(transactionState);
}

 public TransactionContext openTransactionContext(CommandContext commandContext) {
  return new StandaloneTransactionContext(commandContext);
 }
}

protected void fireTransactionEvent(TransactionState transactionState) {
 this.setLastTransactionState(transactionState);
 if (stateTransactionListeners==null) {
  return;
 }
 List<TransactionListener> transactionListeners = stateTransactionListeners.get(transactionState);
 if (transactionListeners==null) {
  return;
 }
 for (TransactionListener transactionListener: transactionListeners) {
  transactionListener.execute(commandContext);
 }
}

public void rollback() {
 try {
  try {
   LOG.debugTransactionOperation("firing event rollback...");
   fireTransactionEvent(TransactionState.ROLLINGBACK);
  }
  catch (Throwable exception) {
   LOG.exceptionWhileFiringEvent(TransactionState.ROLLINGBACK, exception);
   Context.getCommandInvocationContext().trySetThrowable(exception);
  }
  finally {
   LOG.debugTransactionOperation("rolling back the persistence session...");
   getPersistenceProvider().rollback();
  }
 }
 catch (Throwable exception) {
  LOG.exceptionWhileFiringEvent(TransactionState.ROLLINGBACK, exception);
  Context.getCommandInvocationContext().trySetThrowable(exception);
 }
 finally {
  LOG.debugFiringEventRolledBack();
  fireTransactionEvent(TransactionState.ROLLED_BACK);
 }
}

protected void initDbSchemaOperationsCommandContextFactory() {
 if(dbSchemaOperationsCommandContextFactory == null) {
  TxContextCommandContextFactory cmdContextFactory = new TxContextCommandContextFactory();
  cmdContextFactory.setProcessEngineConfiguration(this);
  cmdContextFactory.setTransactionContextFactory(new StandaloneTransactionContextFactory());
  dbSchemaOperationsCommandContextFactory = cmdContextFactory;
 }
}

 public TransactionContext openTransactionContext(CommandContext commandContext) {
  return new StandaloneTransactionContext(commandContext);
 }
}

protected void fireTransactionEvent(TransactionState transactionState) {
 this.setLastTransactionState(transactionState);
 if (stateTransactionListeners==null) {
  return;
 }
 List<TransactionListener> transactionListeners = stateTransactionListeners.get(transactionState);
 if (transactionListeners==null) {
  return;
 }
 for (TransactionListener transactionListener: transactionListeners) {
  transactionListener.execute(commandContext);
 }
}

public void rollback() {
 try {
  try {
   LOG.debugTransactionOperation("firing event rollback...");
   fireTransactionEvent(TransactionState.ROLLINGBACK);
  }
  catch (Throwable exception) {
   LOG.exceptionWhileFiringEvent(TransactionState.ROLLINGBACK, exception);
   Context.getCommandInvocationContext().trySetThrowable(exception);
  }
  finally {
   LOG.debugTransactionOperation("rolling back the persistence session...");
   getPersistenceProvider().rollback();
  }
 }
 catch (Throwable exception) {
  LOG.exceptionWhileFiringEvent(TransactionState.ROLLINGBACK, exception);
  Context.getCommandInvocationContext().trySetThrowable(exception);
 }
 finally {
  LOG.debugFiringEventRolledBack();
  fireTransactionEvent(TransactionState.ROLLED_BACK);
 }
}

protected void initDbSchemaOperationsCommandContextFactory() {
 if(dbSchemaOperationsCommandContextFactory == null) {
  TxContextCommandContextFactory cmdContextFactory = new TxContextCommandContextFactory();
  cmdContextFactory.setProcessEngineConfiguration(this);
  cmdContextFactory.setTransactionContextFactory(new StandaloneTransactionContextFactory());
  dbSchemaOperationsCommandContextFactory = cmdContextFactory;
 }
}

public void commit() {
 LOG.debugTransactionOperation("firing event committing...");
 fireTransactionEvent(TransactionState.COMMITTING);
 LOG.debugTransactionOperation("committing the persistence session...");
 getPersistenceProvider().commit();
 LOG.debugTransactionOperation("firing event committed...");
 fireTransactionEvent(TransactionState.COMMITTED);
}

protected void initTransactionContextFactory() {
 if (transactionContextFactory == null) {
  transactionContextFactory = new StandaloneTransactionContextFactory();
 }
}

protected void initDbSchemaOperationsCommandContextFactory() {
 if(dbSchemaOperationsCommandContextFactory == null) {
  TxContextCommandContextFactory cmdContextFactory = new TxContextCommandContextFactory();
  cmdContextFactory.setProcessEngineConfiguration(this);
  cmdContextFactory.setTransactionContextFactory(new StandaloneTransactionContextFactory());
  dbSchemaOperationsCommandContextFactory = cmdContextFactory;
 }
}