Using and Understanding Java Data Objects

Java Data Objects is a standardized Java API for object persistence. It facilitates the storage and retrieval of complex object models with various storage mechanisms, including both object and relational databases. This book is suitable for final year undergraduate students on courses that address Java in database applications. Prior knowledge of JDBC and J2EE is not specifically required, but would help to accelerate the student's understanding of JDO's relationships with these technologies....

Java Data Objects revolutionizes the way Java developers interact with databases and other datastores. JDO allows you to store and retrieve objects in a way that's natural to Java programmers. Instead of working with JDBC or EJB's container-managed persistence, you work directly with your Java objects. You don't have to copy data to and from database tables or issue SELECTs to perform queries: your JDO implementation takes care of persistence behind-the-scenes, and you make queries based on the fields of your Java objects, using normal Java syntax. The result is software that is truly object-oriented: not code that is partially object-oriented, with a large database-shaped lump on the back end. JDO lets you save plain, ordinary Java objects, and does...

The need for persistence is a prerequisite for any enterprise application and the case is no different for applications written in the Java programming language. A typical Java application will consist of code that is responsible for storing and retrieving the application specific data to some kind of storage facility so that it can be retrieved and used at a later time. Now there is a new alternative-Java Data Objects (JDO) that is well placed to change the way developers have traditionally perceived persistence in their applications. JDO is a standard developed under the auspices of the Java Community Process by a number of industry participants. JDO is a new technology, but it is one that holds great promise. If you are an architect, a developer o...