By bloid
via refcardz.dzone.com
Published: Sep 22 2008 / 07:26
JPACreated by co-lead, Mike Keith, of the EJB 3.0 and JPA 1.0 specifications, this refcard will give users enough to understand the basics of JPA and get started writing JPA applications. The Java Persistence API (JPA) is the Java standard for mapping Java objects to a relational database. Getting Started with JPA covers entities, identifiers, O-R mappings, using an entity manager, creating and executing queries, and configuration of the persistence.xml file.
Features include Mapping an Object, Obtaining and Using an Entity Manager, Transactions, Querying, Hot Tips and more.
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