Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is the relationship between SDO & JDO?

April 26, 2017JDO relationship sdo

0

0 Posted

What is the relationship between SDO & JDO?

1 Answer

0

0 Posted

JDO is a Java Community Process (JCP) standard and stands for Java Data Objects. JDO looks at data programming in the Java environment and provides a common API to access data stored in various types of data sources. JDO preserves relationships between Java objects (graphs) and at the same time allows concurrent access to the data. JDO’s goal is similar to SDO’s in that it wants to simplify and unify Java data programming. The main difference, however, is that JDO looks at the persistence issue only (the J2EE data tier or enterprise information system (EIS) tier), whereas SDO is more general and represents data that can flow between any J2EE tier, such as between a presentation and business tier. SDO can be used in conjunction with JDO where JDO is a data source that SDO can access, applying the Data Transfer Object (DTO) design pattern.