New features and development trends of the open-source framework Hibernate3

Article Title: New features and development trends of the open-source framework Hibernate3. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Hibernate is a powerful middleware that provides object-link persistence and query services. it enables programmers to develop persistence classes based on object-oriented principles, realize Association, inheritance, polymorphism, combination, set among objects.

Hibernate provides its unique Database Query Language HQL, which shields the differences between different databases and enables you to write unified query statements to execute queries. Unlike other persistence solutions, Hibernate does not block the powerful functions of SQL, but is still compatible with SQL, which makes your previous relational technology still effective.

I. update of Hibernate versions

The Hibernate version is updated quickly. so far, there are two phased versions: Hibernate2 and Hibernate3, which can be seen by programmers in their Jar file names. The latest version released on the date of writing this article is Hibernate3.4.

The highest version of the Hibernate2 series is Hibernate2.1.8. The highest version of the Hibernate3 series when writing this book is Hibernate 3.2.5 GA, and GA is General Availability, which is a widely used version, however, Hibernate 3.1.3 or Hibernat 3.1.2 is a widely used and stable version.

In addition, since the release of Hibernate3, its product line has become more mature, and a series of product suites have emerged, such as Hibernate annotations, Hibernate entity manager, and Hibernate plug-in tools. While making it easier for programmers to use Hibernate for application development, it also gradually enhances the strength of the Hibernate product line.

However, there are few books on the market for learning Hibernate development. most of them are about the old version of Hibernate2. recently, Xicai and blog jointly launched "link Hibernate development". this article provides detailed answers to the latest Hibernate3, which is recommended for readers to read.

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