Extensible Transaction Management in PJava

Persistent programming languages o er an attractive alternative to the increasing number of applications whose needs cannot be satis ed with traditional database support. The requirement of these so called non-traditional applications have prompted the development of numerous transaction models whose semantics vary from the traditional transaction model as well as from each other. In order to minimize the investment to realize new transaction models, application builders must be o ered a simple framework they can use to quickly de ne the transaction behavior they want and incorporate it into the persistent program-