JPDL specifies an xml schema and the mechanism to package all the process definition related files into a process archive. A process archive is a zip file. The central file in the process archive is processdefinition. The main information in that file is the process graph. The processdefinition. A process archive can also contain other process related files such as classes, ui-forms for tasks,

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Table of Contents 1. Introduction 1. Overview 1. The jPDL suite 1. The jPDL graphical process designer 1. The jBPM console web application 1. The jBPM core library 1. Getting started 2.

Downloadables Overview 2. Source code CVS access 2. Anonymous CVS access 2. Developer CVS access 3. Tutorial 3. Hello World example 3. Database example 3.

Context example: process variables 3. Task assignment example 3. Custom action example 4. Graph Oriented Programming 4.

Introduction 4. Domain specific languages 4. Features of graph based languages 4. Support for wait states 4. Graphical representation 4.

The graph structure 4. An execution 4. A process language 4. Actions 4. Synchronous execution 4. Code example 4. Extensionding Graph Oriented Programming 4.

Process variables 4. Concurrent executions 4. Process composition 4. Asynchronous continuations 4. Persistence and Transactions 4. Services and environment 4. Considerations 4. Runtime data isolation 4.

GOP compared to other techniques 4. GOP compared to petri nets 4. Application domains 4. Different aspects of BPM 4. Goals of BPM systems 4. Service orchestration 4. Embedding graph based languages 4.

Market 4. The ultimate process language 4. Fragmentation 4. Other implementation techniques 5. Deployment 5. Java runtime environment 5. Third party libraries 5. Web application 5. Enterprise archive 6. Configuration 6. Configuration properties 6. Configuration files 6. Hibernate cfg xml file 6.

Hibernate queries configuration file 6. Node types configuration file 6. Action types configuration file 6. Business calendar configuration file 6. Variable mapping configuration file 6. Converter configuration file 6. Default modules configuration file 6. Process archive parsers configuration file 6. Object factory 7. Persistence 7. The persistence API 7. Relation to the configuration framework 7. Convenience methods on JbpmContext 7. Managed transactions 7. Injecting the hibernate session 7.

Injecting resources programmatically 7. Advanced API usage 7. Configuring the persistence service 7. The hibernate session factory 7. Configuring a c3po connection pool 7. Configuring a ehcache cache provider 7. The DbPersistenceServiceFactory 7.

Hibernate transactions 7. JTA transactions 7. Customizing queries 7. Database compatibility 7. Combining your hibernate classes 7. Customizing the jBPM hibernate mapping files 7. Second level cache 8. The jBPM Database 8. Switching the Database Backend 8. Last Steps 8. Database upgrades 8.

Starting hsqldb manager on JBoss 9. Process Modelling 9. Overview 9. Process graph 9. Nodes 9. Node responsibilities 9. Nodetype task-node 9.


Chapter 14. jBPM Process Definition Language

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Table of Contents 1. Introduction 1. Overview 1. The jPDL suite 1. The jPDL graphical process designer 1.


This tutorial will show you basic process constructs in jpdl and the usage of the API for managing the runtime executions. The format of this tutorial is explaining a set of examples. The examples focus on a particular topic and contain extensive comments. The best way to learn is to create a project and experiment by creating variations on the examples given. To get started for eclipse users: download jbpm


This tutorial should give a first impression what simulation can do, what business cases are behind and how this is implemented in jBPM. The first part of this tutorial needs a database, because we want to retrieve historical information out of it. This includes calculating the standard deviation, which can be done by most of the databases today see Howto enable MySQL standard deviation calculation in Hibernate. Unfortunately, some of the database queries made trouble with the standard hibernate HQL.

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