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TOTD #139: Asynchronous Request Processing using Servlets 3.0 and Java EE 6

Server resources are always valuable and should be used conservatively. Consider a Servlet that has to wait for a JDBC connection to be available from the pool,...

Server resources are always valuable and should be used conservatively. Consider a Servlet that has to wait for a JDBC connection to be available from the pool, receiving a JMS message or reading a resource from the file system. Waiting for a "long running" process to completely blocks the thread - waiting, sitting and doing nothing - not an optimal usage of your server resources. Servlets 3.0 introduces the ability to asynchronously process requests such that the control (or...

TOTD #138: GlassFish 3.1 Milestone 1 - Clustering and Application Versioning Demos

GlassFish Server Open Source Edition 3.1 Milestone 1 is now available. The key functional drivers of this release are:Clustering and Centralized...

GlassFish Server Open Source Edition 3.1 Milestone 1 is now available. The key functional drivers of this release are:Clustering and Centralized AdministrationHigh AvailabilityThe Feature List shows the complete set of features planned for the release. The Draft Engineering Schedule shows what/when the features will be delivered. Per the schedule, Milestone 1 is the promoted build b02.This is a bleeding-edge build and the first time clustering capabilities and application...

Oracle at Jazoon 2010 - Java SE, Java FX, Java EE 6, GlassFish, JPA 2.0, JSF 2, Servlets 3.0, OSGi, Cloud, HTML 5, Open DS, ...

Oracle Corporation is a platinum sponsor of Jazoon and here are the list of sessions given by Oracle speakers.Java SE and JavaFX: The Road AheadDanny...

Oracle Corporation is a platinum sponsor of Jazoon and here are the list of sessions given by Oracle speakers.Java SE and JavaFX: The Road AheadDanny CowardTuesday, 1 June 2010, 9:30-10:30, Arena 5Servlet 3.0 - Asynchronous, extensibility, ease-of-developmentRajiv MordaniTuesday, 1 June 2010, 16:30-17:20, Arena 3Java EE 6 Development with Eclipse, NetBeans, IntelliJ, and GlassFishLudovic ChampenoisTuesday, 1 June 2010, 16:30-16:50, Arena 6JPA 2.0: Filling the Feature GapMike...

GlassFish 3.1 - One Pagers Available For Review

GlassFish Server Open Source Edition continue to follow the open and transparent process for the upcoming 3.1 release. The key functional drivers are:Clustering...

GlassFish Server Open Source Edition continue to follow the open and transparent process for the upcoming 3.1 release. The key functional drivers are:Clustering and Centralized AdministrationHigh AvailabilityThis will bring GlassFish Server Open Source Edition 3.x in feature parity with GlassFish v2. Several components have published one pagers on the dev/user alias and are available for review. Here are the one-pagers that are currently available today (in no particular...

TOTD #137: Asynchronous EJB, a light-weight JMS solution - Feature-rich Java EE 6

One of the new features introduced in Enterprise Java Beans 3.1 (JSR 318)  is asynchronous invocation of a business method. This allows the control to return to...

One of the new features introduced in Enterprise Java Beans 3.1 (JSR 318)  is asynchronous invocation of a business method. This allows the control to return to the client before the container dispatches the instance to a bean. The asynchronous operations can return a "Future<V>" that allow the client to retrieve a result value, check for exceptions, or attempt to cancel any in-progress invocations.The "@Asynchronous" annotation is used to mark a specific (method-level) or...

TOTD #136: Default Error Page using Servlets 3.0 - Improved productivity using Java EE 6

Servlets 2.x allowed to create a mapping between an HTTP error code or an exception type to the path of a resource in the Web application. This is achieved by...

Servlets 2.x allowed to create a mapping between an HTTP error code or an exception type to the path of a resource in the Web application. This is achieved by specifying an "error-page" element in the "web.xml". The element definition looks like:So any HTTP error code or an exception thrown within the application can be mapped to a resource bundled with the application. Here is a sample:<error-page>     <error-code>404</error-code>   ...

Bay Area JUG Roundup 2010 - Trip Report

Oracle hosted the first Bay Area JUG Roundup yesterday.There were about 200 attendees from different JUGs and communities in the Bay Area. There were...

Oracle hosted the first Bay Area JUG Roundup yesterday.There were about 200 attendees from different JUGs and communities in the Bay Area. There were representatives from Silicon Valley Web JUG, San Francisco JUG, Silicon Valley JavaFX JUG, Oakland Java SIG, SDForum Java SIG, Bay Area Scala Enthusiasts, and SF Bay Groovy & Grails Group. Good quality free food, beer, wine, and tee-shirts left everybody thrilled. A live Java Posse session was certainly hilarious so stay tuned...

TOTD #135: JSF2 Composite Components using NetBeans IDE - lightweight Java EE 6

NetBeans IDE provide comprehensive feature set to build applications using Java Server Faces 2 (JSR 314). This Tip Of The Day (TOTD) explains how to create JSF...

NetBeans IDE provide comprehensive feature set to build applications using Java Server Faces 2 (JSR 314). This Tip Of The Day (TOTD) explains how to create JSF composite components using wizards provided by the NetBeans IDE.The JSF2 specification, section 3.6 defines composite components as:A tree of "UIComponent" instances, rooted at a top level component, that can be thought of and used as a single component in a view. The component hierarchy of this subtree is described in...

TOTD #134: Interceptors 1.1 in Java EE 6 - What and How ?

TOTD #129 explained Managed Beans 1.0, this Tip Of The Day (TOTD) attempts to explain the basics of Interceptors 1.1 - a "new" specification introduced in the...

TOTD #129 explained Managed Beans 1.0, this Tip Of The Day (TOTD) attempts to explain the basics of Interceptors 1.1 - a "new" specification introduced in the Java EE 6.The specification is not entirely new as the concept is borrowed from the EJB 3.0 specification and abstracted at a higher level so that it can be more generically applied to a broader set of specifications in the platform. Interceptors do what they say - they intercept on invocations and lifecycle events on...