Tuesday Dec 22, 2009

Java EE 6 and GlassFish v3 virtual seminar replays available -- Connectors 1.6 overview talk

As you might have seen in the recent Aquarium post, the session replays and slide-sets of the talks in the Java EE 6 and GlassFish v3 virtual seminar is now available (registration required for access. registration is free). The replay for the technical overview session on Connectors 1.6 (in slide-cast form) is also made available as part of this set. This talk highlights the new features, discussed in an earlier post, in Java EE Connector Architecture 1.6 (JSR 322).

The slides of the JavaOne talk on Connectors 1.6 are also now available at slideshare and embedded below.

Monday Jun 01, 2009

Connectors 1.6 technical session at JavaOne 2009

Binod and I are talking about Connectors 1.6 (JSR 322) in JavaOne 2009 about the updates to the specification and the work that has been done in the JSR 322 expert group leading to the latest proposed final draft version.

Details of the session:
    ID#: TS-4733
    Title: Java™ Platform, Enterprise Edition Technology-Based Connector Architecture 1.6
    Date: 05-JUN-09
    Time: 10:50 AM-11:50 AM
    Venue: Moscone
    Room: Gateway 104

Please attend this session if you want to learn more about the new features planned for the Java EE Connector Architecture 1.6 technology.

Arun Gupta recently recorded me providing a short blurb video about this talk and I have embedded it below.

Update: Slides for this JavaOne talk on Connectors 1.6 (along with speaker notes to aid the reader) are available at slideshare now.

Connectors 1.6 Proposed Final Draft and the availability of Java EE SDK Preview

The JSR 322 expert group released the proposed final draft (PFD) of the Java EE Connectors 1.6 specification during mid-Febraury 2009.

We had covered the features introduced in the earlier milestones of the specification in this blog (see entries on early draft and public review).
Some of the changes and new features introduced in the PFD draft are:
  • Config property attributes: New attributes (See Section 5.3.7.6) have been introduced to configuration properties to indicate if they
    • support dynamic updates: to indicate to the application server that dynamically reconfiguring the config property is supported by the resource adapter
    • are confidential: to indicate that a particular configuration property is confidential, so that deployment/runtime tools could use special visual aids denoting confidentiality and not expose the values as plain text.
  • The original InflowContext interfaces have been renamed to WorkContext or its equivalent, as the interfaces were not relevant only during Message Inflow but during all Work processing. (See Ch.11 and 16)
  • Robust handling of error conditions during MessageEndpoint creation and Work submission: Enhanced the MessageEndpoint creation APIs to support timeouts and also enhanced the exceptions thrown by the MessageEndpointFactory and WorkManager to handle retryable scenarios. (See 13.3 and 10.3.3 for more details)
  • Provide guidelines on the relationship of the Connector Architecture and other integration technologies such as Java Business Integration (JBI) and Service Component Architecture (SCA). (See Section 1.5)
  • Updated the ease of development annotations and contracts, that were introduced  in the Public Review draft of the specification, to address feedback received.  (See the change history, Section I.1, for a list of changes and Ch. 18 for more details)
  • Misc updates and clarifications to the Connection and Transaction Management chapters (see the change history, Section I.1 for a complete list of changes).
As always, we would like your feedback on the draft through the JSR comments alias jsr322-comments@jcp.org or in the comments section of this blog entry. Since this is the last milestone of the JSR before going final, please try to spend some time reading  the new features introduced in this version of the specification, try out the reference implementation (details below) and provide your review comments and feedback through the alias above.

As you might know, the reference implementation for the Connectors specifications and other components specifications in the Java EE 6 platform are developed in the GlassFish community. Now, with the release of the Java EE 6 SDK early access in JavaOne, most of the features in the PFD draft are now available for you to try out.

Jagadish, the lead of the Connectors technology reference implementation in GlassFish, has blogged recently about how a resource adapter can be built using the new metadata annotations introduced in the spec and demonstrates how the use of the EoD features could reduce the need for redundant boilerplate code and eliminate/reduce the need for XML deployment descriptors. Please also go through the Connectors 1.6 mail-connector sample that he has made available through the Java EE 6 Preview SDK to understand how these annotations could be used while developing a resource adapter.
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