docs: private void afterBeginCallback() {
  		if ( this.timeOut > 0 ) {
  			owner.setTransactionTimeOut( this.timeOut );
  		}
  		owner.afterTransactionBegin();
  		for ( TransactionObserver observer : observers ) {
  			observer.afterBegin();
  		}
  		log.trace( "ResourceLocalTransactionCoordinatorImpl#afterBeginCallback" );
  	}