Hi, I am looking for feedback on changes to provide the ability for work to be completed in a currently running transaction. For example when a TableGenerator or SequenceGenerator is being used for generating unique ids. The statements that select then update the db are executed in a separate transaction.
There is a jira for this feature. https://hibernate.atlassian.net/browse/HHH-8429 Attached to the jira is a diagram. See this link https://hibernate.atlassian.net/secure/attachment/19534/hibernate-class-structure-allowing-same-tx-support.png This diagram shows what I currently have implemented. It shows the existing classes and the new classes shaded in light blue. The methods on a new class IsolationAware show how I've re-jigged most the implementation from JtaTransaction to it's new ancestor IsolationAware. A new concrete implementation of IsolationDelegate will negotiate the work to be executed in the same running transaction. The structure splits up the factory/transaction/delegate classes into two groups. "same transaction" and "separate transaction". This has only been done for JtaTransaction and the same will probably be necessary for CMTTransaction as it also uses a separate transaction to complete work. That has been left out to keep the diagram simple. The option of using aggregation at the point where implementers of TransactionImplementor are instantiated has been considered. Before too much effort is expended coding I wondered what others thought is the preferred way to implement this feature. Jeremy _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
