It would be nice if wherever JPA is used in Drools (drools-flow in particular) there was support for RESOURCE_LOCAL transactions through JPA's EntityTransaction interface as an alternative to JTA.

Support for resource local transactions would reduce the base Drools Flow dependency footprint (no need for bitronix) as well as allow Drools to be used in a containerless or Tomcat like environment without a JTA implementation available. Although embeddable solutions are available they are often either buggy or complex. It would be nice to not have to deal with them if possible.

If the idea is acceptable I'd be willing to put together an initial patch.