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Line 5: Data Access Objects are a Core [[Java 2 Platform, Enterprise Edition\|J2EE]] Design Pattern and considered best practice. The advantage of using data access objects is that any [[Business object (computer science)\|business object]] (which contains application or operation specific details) does not require direct knowledge of the final destination for the information it manipulates. As a result, if it is necessary to change where or how that data is stored that modification can be made without needing to change the main application. Data Access Objects can be used in [[Java programming language\|Java]] to insulate an application from the underlying Java persistence technology, which could be [[Java Database Connectivity\|JDBC]], [[Java Data Objects\|JDO]], [[Enterprise JavaBeans\|EJB CMP]], TopLink, [[Hibernate (~~java~~Java)\|Hibernate]], iBatis, or any one of a range of technologies. Using Data Access Objects means the underlying technology can be upgraded or swapped without changing other parts of the application. == External links ==

Data access object: Difference between revisions