Using JDO to build an application that creates, reads, updates, and deletes persistent instances of Java classes is easy and requires only some basic knowledge about how JDO works and how to use it. Armed with this knowledge, you can develop your first JDO application and persist instances of Java classes transparently in a datastore. This chapter is a guide to getting started with JDO, providing an understanding of how JDO works and how to use the basic APIs, and exploring some of the more advanced concepts related to using JDO. This chapter covers these topics:
The examples for this chapter can be downloaded from the Internet at www.corejdo.com and are located in the com.corejdo.examples.chapter3 package. In many cases, the code snippets shown are simplified versions of the actual classes to allow the examples to focus only on the relevant concepts. |