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. Analysts agree that JDO's transparent persistence will accelerate software development and yield more flexible applications and object models. According to Infoworld , "The JDO standard promises to be a winner for business leaders and corporate developers alike. Unifying data access—that is, using familiar Java constructs to access information housed in relational databases, object databases, file systems, or even flash RAM—means that corporate applications will experience an increase in usability, portability and integration". This book is for Java developers, designers and architects with a good understanding of the Java language who wish to write applications that use JDO for persistence. Prior knowledge of JDBC and J2EE is not specifically required, but would help to accelerate the reader's understanding of JDO's relationship with these technologies. The companion CD-ROM includes the following JDO implementations:FastObjects, Kodo JDO, LiDO and OpenFusion JDO. 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. Analysts agree that JDO's transparent persistence will accelerate software development and yield more flexible applications and object models. According to Infoworld , "The JDO standard promises to be a winner for business leaders and corporate developers alike. Unifying data access--that is, using familiar Java constructs to access information housed in relational databases, object databases, file systems, or even flash RAM--means that corporate applications will experience an increase in usability, portability and integration". This book is for Java developers, designers and architects with a good understanding of the Java language who wish to write applications that use JDO for persistence. Prior knowledge of JDBC and J2EE is not specifically required, but would help to accelerate the reader's understanding of JDO's relationship with these technologies. The companion CD-ROM includes the following JDO implementations:FastObjects, Kodo JDO, LiDO and OpenFusion JDO. 0321123808B08192002 Annotation -- First book introducing JDO, an enhancement for databases with improvements in application portability, performance and reliability.-- Complete coverage of JDOQL, a new query language, removing dependence on JDBC and SQL. JDO, Java Data Objects is an API for transparent database access. Programmers can write code in Java that transparently accesses the underlying datastore, without using database-specific code. JDO is an object persistence technology and is complementary to JDBC. JDO scores high on programmer convenience, because programmers do not need to learn SQL. It gives you the ability to directly manipulate data stored in a database. Most server-side developers have used JDBC to access databases. JDO extends that by allowing programmers to work on the business solution without worrying about the infrastructure-level code to map between objects and databases. This allows programmers to access Oracle, Sybase, and other implementations with greater ease. There are a growing number of commercial applications and JDO products. JDO is controversial in EJB forums, as some maintain JDO is superior to EJB's Entity Beans. Many think JDO is a great tool, and more applications are to come The first book to introduce JDO, an enhancement for databases with improvements in application portability, performance and reliability. Complete coverage of JDOQL, a new query language. CD-ROM included.