jBPM 4 Sneak Preview Tom Baeyens JBoss, Red Hat

JBoss jBPM Business Process Management BPM as a discipline BPM as software engineering What is jBPM jBPM 4 Overview

Business Process Management

BPM as a discipline

BPM as software engineering

What is jBPM

jBPM 4 Overview

Tom Baeyens Lead and founder of JBoss jBPM Consulting for numerous BPM projects Bringing BPM mainstream Articles InfoQ, TSS, Dzone, OnJava,… Blogs http://processdevelopments.blogspot.com/ Talks JavaOne, JBossWorld, JAOO, TSS,…

Lead and founder of JBoss jBPM

Consulting for numerous BPM projects

Bringing BPM mainstream

Articles

InfoQ, TSS, Dzone, OnJava,…

Blogs

http://processdevelopments.blogspot.com/

Talks

JavaOne, JBossWorld, JAOO, TSS,…

BPM as a Discipline Management discipline Business processes grow organic Understand Describe Optimise Non technical People to people What, not how Can be vague Unrelated to software architecture Often include diagrams

Management discipline

Business processes grow organic

Understand

Describe

Optimise

Non technical

People to people

What, not how

Can be vague

Unrelated to software architecture

Often include diagrams

BPM as Software Engineering Aspect of software expressed as a graph Specifies execution flow BPMS ‘runs’ process executions It’s software DSL Executes on one system Central dispatcher Multiple participants Wait states

Aspect of software expressed as a graph

Specifies execution flow

BPMS ‘runs’ process executions

It’s software

DSL

Executes on one system

Central dispatcher

Multiple participants

Wait states

Traditional BPM Vendors Stack Integrators Oracle, IBM, SAP XML basis for BPM ?! BPEL, WSDL Lots of tooling required to hide clumsy basics Deprecating BPEL in favour of BPMN Pure plays Monolithic server Automagical Hard to integrate in your project

Stack Integrators

Oracle, IBM, SAP

XML basis for BPM ?!

BPEL, WSDL

Lots of tooling required to hide clumsy basics

Deprecating BPEL in favour of BPMN

Pure plays

Monolithic server

Automagical

Hard to integrate in your project

jBPM ! Bottom Up No magic Server or embedded Not monolithic Just a library Freedom Use the most appropriate tech Java, groovy, web services, SQL Java excellent dispatcher technology

Bottom Up

No magic

Server or embedded

Not monolithic

Just a library

Freedom

Use the most appropriate tech

Java, groovy, web services, SQL

Java excellent dispatcher technology

jBPM’s Modelling Advantage Your App Your Architecture jBPM Business Analyst Developer

jBPM’s Modelling Advantage Your App Your Architecture jBPM Business Analyst Developer

jBPM Overview Process Virtual Machine Java state machine library Pluggable Activities jPDL BPM as a discipline Orchestrating Human Tasks & Services Transactional Script Execution modes SEAM Pageflow …

Process Virtual Machine

Java state machine library

Pluggable Activities

jPDL

BPM as a discipline

Orchestrating Human Tasks & Services

Transactional Script

Execution modes

SEAM Pageflow

…

jPDL Activities Control flow transition start end end-cancel end-error decision fork join super-state sub-process Functional state sub-process task java script esb hql sql

Control flow

transition

start

end

end-cancel

end-error

decision

fork

join

super-state

sub-process

Functional

state

sub-process

task

java

script

esb

hql

sql

jPDL Features Lots of functional activities mail, java, esb, task,… Concurrency Event listeners Timers Asynchronous continuations Transactional exception handlers

Lots of functional activities

mail, java, esb, task,…

Concurrency

Event listeners

Timers

Asynchronous continuations

Transactional exception handlers

State Choice

State Choice < process name = &quot;StateChoice&quot; > < start > < transition to = &quot;wait for response&quot; /> </ start > < state name = &quot;wait for response&quot; > < transition name = &quot;accept&quot; to = &quot;submit document&quot; /> < transition name = &quot;reject&quot; to = &quot;try again&quot; /> </ state > < state name = &quot;submit document&quot; /> < state name = &quot;try again&quot; /> </ process >

< process name = &quot;StateChoice&quot; >

< start >

< transition to = &quot;wait for response&quot; />

</ start >

< state name = &quot;wait for response&quot; >

< transition name = &quot;accept&quot; to = &quot;submit document&quot; />

< transition name = &quot;reject&quot; to = &quot;try again&quot; />

</ state >

< state name = &quot;submit document&quot; />

< state name = &quot;try again&quot; />

</ process >

State Choice repositoryService .createDeployment() .addResourceFromClasspath( &quot;org/jbpm/examples/state/choice/process.jpdl.xml“ ) .deploy();

repositoryService .createDeployment()

.addResourceFromClasspath(

&quot;org/jbpm/examples/state/choice/process.jpdl.xml“ )

.deploy();

State Choice ProcessInstance processInstance = executionService .startProcessInstanceByKey( &quot;StateChoice&quot; ); String executionId = processInstance .findActiveExecutionIn( &quot;wait for response&quot; ) .getId(); processInstance = executionService .signalExecutionById(executionId, &quot;accept&quot; ); assertEquals( &quot;submit document&quot; , processInstance.getActivityName());

ProcessInstance processInstance = executionService

.startProcessInstanceByKey( &quot;StateChoice&quot; );

String executionId = processInstance

.findActiveExecutionIn( &quot;wait for response&quot; )

.getId();

processInstance = executionService

.signalExecutionById(executionId, &quot;accept&quot; );

assertEquals( &quot;submit document&quot; ,

processInstance.getActivityName());

Human Task

Human Task < process name = &quot;TaskCandidates&quot; > < start > < transition to = &quot;review&quot; /> </ start > < task name = &quot;review&quot; candidate-groups = &quot;sales-dept&quot; > < transition to = &quot;wait&quot; /> </ task > < state name = &quot;wait&quot; /> </ process >

< process name = &quot;TaskCandidates&quot; >

< start >

< transition to = &quot;review&quot; />

</ start >

< task name = &quot;review&quot;

candidate-groups = &quot;sales-dept&quot; >

< transition to = &quot;wait&quot; />

</ task >

< state name = &quot;wait&quot; />

</ process >

Identity Component LDAP jBPM Identity Component Interface jBPM build-in JBoss IDM Your own custom implementation 3 10

Identity Component johndoe joesmoe sales-dept membership membership

Human Task executionService .startProcessInstanceByKey( &quot;TaskCandidates&quot; ); List<Task> johnsTakableTasks = taskService .findTakableTasks( &quot;johndoe&quot; ); List<Task> joesTakableTasks = taskService .findTakableTasks( &quot;joesmoe&quot; ); taskService .takeTask(task.getDbid(), &quot;johndoe&quot; ); List<Task> johnsPersonalTasks = taskService .findAssignedTasks( &quot;johndoe&quot; ); taskService .completeTask(task.getDbid());

executionService

.startProcessInstanceByKey( &quot;TaskCandidates&quot; );

List<Task> johnsTakableTasks =

taskService .findTakableTasks( &quot;johndoe&quot; );

List<Task> joesTakableTasks =

taskService .findTakableTasks( &quot;joesmoe&quot; );

taskService .takeTask(task.getDbid(), &quot;johndoe&quot; );

List<Task> johnsPersonalTasks = taskService .findAssignedTasks( &quot;johndoe&quot; );

taskService .completeTask(task.getDbid());

Timer Transition

Timer Transition < process name = &quot;TimerTransition&quot; > < start > < transition to = &quot;guardedWait&quot; /> </ start > < state name = &quot;guardedWait&quot; > < transition name = &quot;go on&quot; to = &quot;next step&quot; /> < transition name = &quot;timeout&quot; to = &quot;escalation&quot; > < timer duedate = &quot;2 business days&quot; /> </ transition > </ state > < state name = &quot;next step&quot; /> < state name = &quot;escalation&quot; /> </ process >

< process name = &quot;TimerTransition&quot; >

< start >

< transition to = &quot;guardedWait&quot; />

</ start >

< state name = &quot;guardedWait&quot; >

< transition name = &quot;go on&quot; to = &quot;next step&quot; />

< transition name = &quot;timeout&quot; to = &quot;escalation&quot; >

< timer duedate = &quot;2 business days&quot; />

</ transition >

</ state >

< state name = &quot;next step&quot; />

< state name = &quot;escalation&quot; />

</ process >

Asynchronous Continuations Automatic activities in sequence One takes a long time Don’t block the client thread async=“true” Transaction 1 Transaction 2 Job Executor

Automatic activities in sequence

One takes a long time

Don’t block the client thread

async=“true”

Designer

Console

Console

Conclusion jBPM provides overview of application External triggers Wait states Business view jBPM adds a layer on top of TX basics Transactional timers Asynchronous messages Integrates with Standard & Enterprise Java JBoss and other app servers SEAM Spring

jBPM provides overview of application

External triggers

Wait states

Business view

jBPM adds a layer on top of TX basics

Transactional timers

Asynchronous messages

Integrates with

Standard & Enterprise Java

JBoss and other app servers

SEAM

Spring

Q&A

Execution Modes

Execution Modes Processes Executions History JVM BPM Engine (1) Persistent Dynamic

Execution Modes Executions History JVM BPM Engine Process Resources (2) Persistent Process resource

Execution Modes Executions History JVM BPM Engine Process Resources (3) Persistent Embedded Referenced INSURANCE_CLAIMS ID … STATE …

Execution Modes History JVM BPM Engine Process Resources (4) Persistent Embedded Included “ review” INSURANCE_CLAIMS ID … STATE …

Execution Modes History JVM BPM Engine Process Resources Execution Objects (5) Memory With Persistent History

Execution Modes JVM BPM Engine Process Resources Execution Objects (6) Memory

Process Concurrency