JPA 2.0 introduces the strongly typed Criteria API for going away with the Java Persistence Query (JQL) language. It comes with the metamodel for helping the typed objects. Every entity must have a meta model generated with underscore(_) added to its name. These objects will be referred in the Criteria API instead of using the …
JPA 2 Tutorials
JPA 2.1 New Features
JPA 2.1 adds lot of enhancements on top of the JPA 2.0 features. Some of the notable features are custom converters, criteria update, stored procedures, DDL generation, entity groups, etc. Here I have listed all the changes and explained few of the features. I will write examples for each features in the future articles. 1. …
JPA 2.0 New Features
Java Persistance API (JPA) is the object relational mapping (ORM) specification for Java EE applications. It is only the specification, every framework owners can implement their own persistence layer following the JPA specification. Standardizing three major competing vendors of ORM technologies, Hibernate, JDO and Toplink, into one standard is the JPA 1.0 specification. JPA 1.0 …