•Ahmed M. Gamal, J2EE Developer @iCraft

•Mohamed Maaty , Information Analyst @ hp

INTRODUCING JBPM

Agenda

Java Developer Conference 2010

The Challenge

Analyst –Developer communication

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Problem

Business Logic Scattered Everywhere

Continuous Requirement Changes

Problem Dimensions

Business Process Management

•Domain Specific languages .•BPM Definition.•BPMN 2.0. •Service Orchestration (PBEL).

Domain Specific languages.

domain-specific language (DSL) is a programming language or specification language dedicated to a particular problem domain,

BPM Definition Business process:

A procedure that describes how people and systems work together

Business Process Management (BPM):Optimizing efficiency by automating ,analyzing, describing and improving business processes

Traditional BPM approach

Collaboration Common Language

BPM Key Features Common Communication language.Graphically visualized process.Separation of concerns.Ease of Development and deploy.Ease of change and reuseReduced development time/Time to Market.

Key Functions Workflow delivers the following functionality

Automation of processes Routing and scheduling of activities Process visibility Process control through escalations and notifications Tracking of activities Collaboration of all parties involved Convergence of process and information Redesign of business processes

BPMN 2.0 (business-oriented notation) Business Process Modeling Notation (BPMN) is a graphical representation for

specifying business processes in a business process model. The objective of BPMN is to support business process management for both technical users

and business users .

Service Orchestration (BPEL)Business Process Execution Language (BPEL) is a XML-based language

used to define enterprise business processes within Web services.Service orchestration is to be seen in the context of an Enterprise Service

Bus. An enterprise service bus is a central communication backbone on a corporate level. It integrates many diverse systems and it is based on XML technology.

Service Orchestration (BPEL ):Example Example

Suppose you have services A, B and C on your enterprise service bus. Service orchestration is a graph based execution language for writing a new services as a function of existing services. E.g. A new service D can be written as a function of existing services A, B and C in an orchestration script.

jBPM

•Overview jBPM•jBPM Architecture •Keyword .•jPDL•Process Deployment•Process Execution

OverviewJBoss jBPM is a workflow, process

automation, that enables coordination between disparate applications and services, resulting in the deployment of new revenue generating business processes

Architecture JBoss Enterprise Framework that delivers workflow, business process

management (BPM) and service orchestration in a multi-process language platform and in a scalable and flexible product footprint.

Keywords

API

jPDLjPDL stands for : JBoss Process Definition languageDomain specific language based on XML

Process Modeling Cont.

Process Modeling Cont.

Process Modeling Cont.

Tasks

JPDL ElementsjPDL has a number of process constructs

start-state task-nodeTransitionDecisionFork / Joinprocess-stateend-state

Process Deployment

Process Execution Cont.

PersistenceProcess and execution can be persisted

Without persistence, the execution state of a process could not be stored and later retrieved.

Standard Let Hibernate manage the connection or... Provide your connection to jBPM Combine your DB updates with jBPM In one transaction on the JDBC connection

Enterprise Configure hibernate to participate in JTA transaction

Demo•Environment Setup (runtime, IDE, examples )•Design simple process.•Deployment.•Web console.•API •Advanced jBPM features .