ahmed m. gamal , j2ee developer @ icraft mohamed maaty , information analyst @ hp
Post on 31-Dec-2015
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•Ahmed M. Gamal, J2EE Developer @iCraft
•Mohamed Maaty , Information Analyst @ hp
INTRODUCING JBPM
Agenda
Java Developer Conference 2010
The Challenge
Analyst –Developer communication
bla bla bla bla bla bla bla bla bla
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 .
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