Java EE 7 - Into the Cloud
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The document outlines the evolution of Java EE, focusing on the transition to Java EE 7 as a platform-as-a-service (PaaS) model that supports cloud applications. It discusses various specifications, such as JPA 2.1 and JMS 2.0, which include features for multi-tenancy, ease-of-development, and improved cloud integration. The document also provides a status update on the Java EE 7 specifications and their expected release schedule.
Java EE 7 - Into the Cloud
- 1. 1 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 2. Agenda 1. Java EE – Past, Present and Future 2. Java EE 7 – Platform as a Service 3. PaaS Roadmap 4. Focus Areas 5. All the Specs 2 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 3. http://blog.eisele.net http://twitter.com/myfear markus.eisele@msg-systems.com 3 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 4. Java EE Past, Present and Future Cloud Flexible Java EE 7 Ease of Multi-tenancy, Java EE 6 Isolation Development Pruning Application Extensibility Versioning, Web Java EE 5 Profiles Packaging Services Ease-of-dev Ease of EJB Lite Virtualization Development RESTful WS J2EE 1.4 Annotations CDI Modularity EJB 3.0 Robustness Persistence API Web Services, New Roles Management, New and Enterprise J2EE 1.3 Deployment, Updated Java Async. Web Services Platform CMP, ` Connector Connector J2EE 1.2 Architecture Web Profile & Servlet, JSP, Managed EJB, JMS Beans 1.0 JPE RMI/IIOP Project May 1998 Dec 1999 Sep 2001 Nov 2003 May 2006 Dec 2009 Q3 2012 10 specs 13 specs 20 specs 23 specs 28 specs 28+ specs 4 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 5. Java EE 7 Focus : Platform as a Service • Provide way for customers and users to leverage public, private, and hybrid clouds • PaaS support entails evolutionary change • Next logical step for Java EE J2EE -> Java EE 6 : The Java EE Platform provides services Java EE 7 : The Java EE Platform IS a service 5 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 6. Java EE 7 PaaS Roadmap • Define new platform roles to accommodate PaaS model • Add metadata For service provisioning and configuration For QoS, elasticity For sharing of applications and resources For (re)configurability and customization • Add useful APIs for cloud environment JAX-RS client API, Caching API, State Management, JSON,… • Extend existing APIs with support for multitenancy 6 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 7. Java EE 7 Roles 7 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 8. Cloud Services – not just APIs • In the cloud tenant applications consume services • PaaS administrators host, configure, and manage application and infrastructure services • Existing APIs in Java EE need to be updated to be service-enabled and tenant-aware Example: pluggable services, late binding and tenant id injection 8 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 9. Auto-Provision Services from Application Dependencies • Old Java EE Model Configure Java EE resources – JDBC, JMS etc Deploy Application EAR • Java EE 7 Model Provision and deploy application resources (e.g. LDAP stripe, data source instantiation and connection …) • Extensible Deployment Models Supporting Multiple Frameworks Spring, Seam, Play … 9 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 10. Elasticity • Service Levels • Minimum and Maximum Instances • Futures – Self Adjustment, Capacity On Demand 10 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 11. And … not only clouds: • Alignment of ManagedBeans across CDI, EJB, JSF,… POJO -> ManagedBean -> Enterprise JavaBean Extension of container-managed transactions beyond EJB • Further simplifications for ease-of- development JMS 2.0 focus on ease-of-development Expanded use of dependency injection Expanded service metadata; improved configuration • Pruning EJB CMP and BMP, JAX-RPC, Deployment API • Update to Web Profile 11 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 12. JPA 2.1 • JPA 2.1 (JSR 338) The first spec to include new features is the JPA 2.1. The new features can be described with the following short list: - Multi-Tenancy (Table discriminator) - Stored Procedures - Custom types and transformation methods - Query by Example - Dynamic PU Definition - Schema Generation (Additional mapping metadata to provide better standardization) 12 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 13. JMS 2.0 • JMS 2.0 (JSR 343) This could be considered as the most mature spec in general. It had a long 9 years to go since it's last maintenance release (April 2002). - Modest scope - Ease of development - Pluggable JMS provider - Extensions to support “Cloud” 13 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 14. EJB 3.2 • EJB 3.2 (JSR 345) The goal of Enterprise JavaBeans 3.2 is to consolidate these advances and to continue to simplify the EJB architecture as well as to provide support for the Java EE platform-wide goal of further enabling cloud computing. The scope of EJB 3.2 is intended to be relatively constrained in focusing on these goals. - Incremental factorization (Interceptors) - Further use of annotations to simplify the EJB programming model - Proposed Optional: BMP/CMP - Proposed Optional: Web Services invocation using RPC 14 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 15. CDI 1.1 • CDI 1.1 (JSR 346) Since the final release of the CDI 1.0 specification a number of issues have been identified by the community and a update to the specification will allow these to be addressed. A list of proposed updates is provided here, however the EG will consider other issues raised as the JSR progresses. - Embedded mode - Lifecycle Events - Declarative package scanning - Global ordering of interceptors and decorators - Injection Static Variables 15 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 16. Servlet 3.1 • Servlet 3.1 (JSR 340) In developing the servlet specification 3.1 the EG will take into consideration any requirements from the platform to optimize the Platform as a Service (PasS) model for web applications. Beside this, the following areas should be addressed. - Cloud support - NIO.2 async I/O - Leverage Java EE concurrency - Security improvements - Web Sockets support - Ease-of-Development 16 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 17. JSF 2.2 • JSF 2.2 (JSR 344) The new JSF JSR will be a significant feature update that builds on the advances from the previous JavaServer Faces versions. - Ease-of-Development - HTML 5 support (Forms, Headings, Metadata) - New components - Portlet Integration 17 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 18. JAX-RS 2.0 • JAX-RS 2.0 (JSR 339) JAX-RS addresses most requested community features. To name a few: - Client API - Hypermedia - The primary API utilized for validation will be the Bean Validation API - Ease-of-Development 18 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 19. Expression Lanugage 3.0 • Expression Language 3.0 (JSR 341) The Expression Language (EL), has been part of JSP specification since JSP 2.0. In Java EE 7 this will become a separate JSR. - Standalone JSR - Easier to use outside container - Criteria-based Collection selection - New operators - CDI events for expression eval 19 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 20. Bean Validation 1.1 • Bean Validation 1.1 (JSR 349) Being a version 1.0, Bean Validation stayed on the conservative side feature wise. The community has expressed interest in additional features to enhance the work done in the first version of the specification. - Integration with other JSRs (JAXRS, JAXB, JPA, CDI, EJB, JSF) - Method-level validation - Constraint composition 20 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 21. MR Releases • Common Annotations 1.2 MR • JAX-WS 2.3 MR • JTA 1.2 MR • JSP 2.3 MR • JASPIC 1.2 MR 21 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 22. Candiadates • Jcache 1.0 (JSR 107) • Concurrency Utilities 1.0 (JSR-236), • State Management 1.0 • Batch Processing 1.0 • JSON 1.0 22 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 23. Status and Schedule • Nearly all JSRs up and running • Remaining ones to be filed in next few weeks • Final release target: Q3 2012 • Date-driven release: anything not ready will be deferred to Java EE 8 23 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 24. Links and Readings • Enterprise Software Development mit Java Blog: http://blog.eisele.net • Java EE 7 Expert Group Page http://javaee-spec.java.net One project per spec – e.g., jpa-spec, jax-rs-spec, jms-spec… • Java EE 7 Reference Implementation http://glassfish.org • The Aquarium http://blogs.oracle.com/theaquarium • Arun Gupta„s Blog „Miles to go…“ http://blogs.oracle.com/arungupta 24 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011
- 25. Disclaimer The thoughts expressed here are the personal opinions of the author and no official statement of the msg systems ag. 25 Markus Eisele, Oracle ACE Director FMW & SOA msg systems ag, 2011
- 26. Vielen Dank für Ihre Aufmerksamkeit Markus Eisele markus.eisele@msg-systems.com www.msg-systems.com www.msg-systems.com 26 Markus Eisele, Insurance - Strategic IT-Architecture msg systems ag, 17.10.2011