jBPM

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What is jBPM?

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Key Components

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Process Engine

• BPMN 2.0 standard for process definition
• Java-based execution environment for high performance
• Persistence and transaction management for reliability
• Asynchronous execution for long-running processes

• High-throughput process execution
• Cluster-aware coordination

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Runtime Manager

• Process instance lifecycle management
• Runtime strategy selection (singleton, per request, per process instance) <!— Is this still true - for KS, yes!>
• Deployment unit handling for versioned deployments
• Custom context propagation

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Task Service

• User task assignment and notification
• Task lifecycle management
• Deadlines and escalations
• Form rendering and submission

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Services Infrastructure

• Job Executor for asynchronous and scheduled work
• Data Indexing Service for efficient querying
• Process Audit Service for compliance and monitoring
• Case Management for dynamic, adaptive processes →

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Process Development

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Process Definition

<!-- BPMN HERE -->

• Visual BPMN editors with validation
• Process templates for common deployment and integration patterns
• Simulation and testing tools

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Java Development Integration

// Create a process definition
BpmnProcess process = BpmnProcess.from(new ClassPathResource("onboarding.bpmn2"));

// Configure and start the process engine
ProcessEngineBuilder.get()
    .register(process)
    .eventListeners(new ProcessAuditEventListener())
    .start();

// Start a process instance
ProcessInstance<Onboarding> instance = process
    .createInstance(new Onboarding("John Doe"))
    .start();

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Deployment Models

• Embedded within Java applications
• Standalone process services
• Containerized microservices
• Kubernetes-native deployments

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Integration Points

• Drools for decision-driven processes
• Kogito for cloud-native process orchestration
• Aletyx Playground for visual development
• Spring Boot
• Quarkus for cloud-native applications
• Enterprise messaging systems like Kafka, JMS
• External services via REST, SOAP, or custom connectors

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User Interaction

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Monitoring and Management

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Advanced Features

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Next Steps

• Get started with your first process
• Understand basic BPMN elements
• Learn about human tasks
• Explore the process engine architecture