Video: Java EE 6 does Java 7 (with GlassFish 3.1.1)

July 28, 2011 Comments Off

Java 7 is here! and so is GlassFish 3.1.1! Get them while they’re hot!

New Java versions can sometimes take a bit of time before they’re adopted because:
a/ your IDE doesn’t support the new version and associated language constructs
b/ you’re a server-side developer and it’ll be a while before your application server supports that new version of the JDK
Well, with Java 7, things are different with the quasi-simultaneous releases of JDK 7, NetBeans 7.0.1 (coming up very soon) and GlassFish 3.1.1! Here’s a new screencast on the GlassFish Youtube Channel showing Java EE 6 development taking advantage of the project Coin features and running on GlassFish 3.1.1 and Java 7 :

JPA/EclipseLink multitenancy screencast

June 28, 2011 § 8 Comments

I find JPA and in particular EclipseLink 2.3 to be particularly well suited to illustrate the concept of multitenancy, one of the key PaaS features en route for Java EE 7.

Here’s a short (5-minute) screencast showing GlassFish 3.1.1 (due out real soon now) and its EclipseLink 2.3 JPA provider showing multitenancy in action. In short, it adds EclipseLink annotations to a JPA entity and deploys two identical applications with different tenant-id properties defined in the persistence.xml descriptor. Each application only sees its own data, yet everything is stored in the same table which was augmented with a discriminator column.

For more advanced (or more realistic) uses such as tenant property being set on the @PersistenceContext, XML configuration of multitenant JPA entities, and more check out the nicely written wiki page.

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