Oracle TopLink 11g Released

Oracle released its next version of TopLink 11g(11.1.1.0.0) . This is the first release based on the open-source EclipseLink project. (EclipseLink is derived from a previous version of Oracle TopLink)

Features of 11g are

1.Object-Relational Persistence

TopLink 11g includes support for the native TopLink ORM API as well as the Java Persistence API (JPA) through EclipseLink

a. Java Persistence API (JPA) Support ( supports JPA 1.0 spec)

b. JPA Extensions

• Mappings
• Mapping Customization
• Converters
• Entity Caching
• Optimistic Locking
• Query Hints
• Stored Procedure Query
• Lazy Loading
• Schema Generation
• Returning Policy
• Change Tracking

c.JPA Configuration

d.Performance Requirements

• Change tracking for JPA entities
• Read-only queries
• Parameter binding: now enabled by default.
• Joining: additional support for many-to-many, direct-collection, direct-map, and aggregate-collection mappings, and mapping level inner and outer join support
• Inheritance: support for outer joining inheritance subclasses on queries, and support for joining classes with inheritance
• Improved performance and concurrency
• Dynamic Expression and JPQL parse cache

e.Oracle Spatial support

f.Stored procedure configuration in ORM Project.xml

g. Support for SDO (Service data objects) for Java specification version 2.1