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
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
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.
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
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.
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".
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.
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.
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.