Effective use of Java Data objects in developing database applications. Advantages and disadvantages

Currently, the most common approach in developing database applications is to use an object-oriented language for the frontend module and a relational database for the backend datastore. The major disadvantage of this approach is the well-known "impedance mismatch" in which some form of mapping is required to connect the objects in the frontend and the relational tuples in the backend. Java Data Objects (JDO) technology is recently proposed Java API that eliminates the impedance mismatch. By using JDO API, the programmers deal strictly with objects. JDO hides the details of the backend datastore by providing the object-oriented view of the datastore. JDO automatically handles the mapping between the objects and the underlying data in the relational database, which is hidden from the programmer. This thesis investigates the effectiveness of JDO. Part of the analysis will develop a database application using JDO. Although JDO provides the benefits of object-orientation in design and implementation of the databases, it is not immune from problems and limitations. The thesis will also analyze the advantages and disadvantages of using JDO and discuss the areas requiring improvements in future releases.

Department dc:contributor.department

Computer Science (CS)

Grantor dc:publisher

Monterey, CA; Naval Postgraduate School

Year dc:date.issued

2004

Author dc:creator

• Zilidis, Paschalis.

Advisor dc:contributor.advisor

• Otani, Thomas

Statement dc:rights

• Copyright�is reserved by the copyright owner.

Handle dc:identifier.uri

https://hdl.handle.net/10945/1482

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/1482