This chapter describes the out-of-the-box web services support in jBPM jPDL.
There is a WS subproject in jPDL. The aim of this subproject is to enable the jPDL engine to be called as a web service. The current implementation enables you to start process instances from the definition and to provide the trigger to running instances to continue their execution. It is not (yet) very sophisticated but it can serve as a starting point from which you can start to implement more advanced uses.
Stay tuned as there is probably more to come with respect to web services.
Currently, there is no deployable artefact included in the distribution. Luckily it is very simple to build it yourself. Checkout the jbpm.3 codebase from the jbpm repository, navigate into the jpdl/ws subfolder and invoke ant to build it. You will find the jbpm-jpdl-ws.war artefact in the target subfolder. With JBoss AS it is as simple as dropping this file in the deploy folder of your server instance. You will need to endorse some libraries if you are running Java 6. For more information look at http://jbws.dyndns.org/mediawiki/index.php?title=Install_JBossWS.