Eclipse Web Tools Platform 3.2 - New and Noteworthy

Dali JPA Tools

Initial JPA 2.0 Support - 2.0 Facet and Generic 2.0 Platform

Initial JPA 2.0 support has been added, including a new JPA 2.0 Facet version and a Generic 2.0 Platform. Support for specific JPA 2.0 features is ongoing.

Default Facet selection for Dali 3.0

Derived ID support

Support has been added for JPA 2.0 Derived Id's, which allows one to map an entity where the identity of that entity is derived via the identity from another entity.

Derived Id with composite PK using IdClass

JPA 1.0 and 2.0 Configurations

Two new facet configurations are now available for quick configuration of either a JPA 1.0 or 2.0 project in Dali. This selection will determine what platforms are visible in the New JPA Project wizard.

Document version upgrade

To help with migration from JPA 1.0 to JPA 2.0, Dali offers a menu item on XML artifacts that can be updated to a newer version, which is necessary to get the latest UI for 2.0 features.

Upgrade menu item

JPA 2.0 Support and EclipseLink 2.0 Platform

A number of new JPA 2.0 concepts have been implemented in this milestone in both the Generic and EclipseLink (2.0) platforms. An EclipseLink 2.0 Platform has been added for more customized EclipseLink support.

JPA 2.0 Cache support

Shared-Cache-Mode and Cacheable support have been added to the Dali UI, with persistence-unit, platform, and inheritance based defaults.

Shared-Cache-Mode



@Cacheable

JPA 2.0 Canonical Metamodel generation

Dali has added native support for JPA 2.0 canonical metamodel generation. Dali allows you to specify a source folder for the metamodel to be generated. The metamodel is updated automatically when changes are made to entities in the persistence unit. This is offered as an alternative to APT based implementations that may be offered by JPA implementations.

Project properties configuration



Resulting metamodel creation

EclipseLink 1.2 Platform

EclipseLink 1.2 support has been added to Dali via the new EclipseLink 1.2.x Platform.

EclipseLink 2.1 support

Dali has added platform support for the Helios targeted EclipseLink 2.1 release.

EclipseLink Logging Categories

Logging Category editing has been added to the Persistence XML Editor. This allows for easier configuration of finer grained EclipseLink logging. This expandable section will display the many different logging categories available for configuration.

Validation Preferences

Dali now offers Workspace and Project level preference settings for Dali based validation. Problems are now configurable to 3 severity levels ("Error", "Warning", "Info"), or simply "Ignore".

Validation preferences

OrderColumn

JPA 2.0 based OrderColumn configuration has been added to the Details View. This allows you to specify a column for use in ordering one to many relationships.

ElementCollection

Dali has added support for the new Element Collection mapping introduced in JPA 2.0. This mapping provides support for mapping collections of primitives and Embeddebles. Currently this support does not include Maps as of Dali M5.

Derived Identity support

Dali now supports the Derived Identity concept specified in JPA 2.0. This allows easy mapping of a primary key derived from a foreign key. A given relationship mapping can now be designated as the primary key of an entity. Similarly, when using an Embedded Id, the Maps Id field can be used to designate the Id attribute.

JAXB XML Schema Generation

Dali has added JAXB Schema Generation support to WTP. You can now generate an XML Schema (XSD) for a chosen set of JAXB mapped Java classes in your workspace. Use the "New" wizard at the Workspace, Project, or Package level to access the "JAXB->Schema from JAXB Classes" wizard.



Select the classes that you want to use for schema generation. Select a project, package, or just individual classes.

JAXB Class Generation

Dali has added JAXB class generation support to WTP. Users can now generate classes for a given XML schema (XSD) in their workspace. Use the "Generate" context menu on any schema in a Java project to invoke the wizard.

JoinTable support for "Many to One" and "One to One" mappings

Full JoinTable support (UI and Validation) for single-valued associations has been added to Dali.

Cascade Detach

The JPA 2.0 Cascade Detach option has been added to Dali.

Collection-valued associations map key attribute overrides; MapKeyClass, and MapKeyColumn Model Support

Dali has added significant model (validation) support for Map based mappings. Not all of this support is currently visible in the UI.

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