![]() ![]() Hibernate Annotations are based on the JPA 2. Annotated Class ExampleĪs I mentioned above while working with Hibernate Annotation, all the metadata is clubbed into the POJO java file along with the code, this helps the user to understand the table structure and POJO simultaneously during the development. There are many annotations that can be used to create hibernate application such as Entity, Id, Table etc. Second, you will need to install the Hibernate 3.x annotations distribution package, available from the sourceforge: ( Download Hibernate Annotation) and copy hibernate-annotations.jar, lib/hibernate-comons-annotations.jar and lib/ejb3-persistence.jar from the Hibernate Annotations distribution to your CLASSPATH. Environment Setup for Hibernate Annotationįirst of all you would have to make sure that you are using JDK 5.0 otherwise you need to upgrade your JDK to JDK 5.0 to take advantage of the native support for annotations. If you going to make your application portable to other EJB 3 compliant ORM applications, you must use annotations to represent the mapping information, but still if you want greater flexibility, then you should go with XML-based mappings. All the metadata is clubbed into the POJO java file along with the code, this helps the user to understand the table structure and POJO simultaneously during the development. Hibernate Annotations is the powerful way to provide the metadata for the Object and Relational Table mapping. You can use annotations in addition to or as a replacement of XML mapping metadata. Hibernate annotations are the newest way to define mappings without the use of XML file. So far you have seen how Hibernate uses XML mapping file for the transformation of data from POJO to database tables and vice versa. ![]()
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