The Jakarta Persistence API (JPA) is a Java specification that bridges the gap between relational databases and object-oriented programming. This two-part tutorial introduces JPA and explains how Java ...

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Object relational mappers, which are code libraries that connect object-oriented code to relational databases directly, serve as an alternative to SQL in some instances. ORMs are attractive because ...

Start-up db4objects Inc. next week is releasing its object database, db4o, under an open-source format, with the product now available either under the GPL (GNU General Public License) via open-source ...

db4objects, Inc, creator of the leading open source object database for Java and .NET, announces that db4o runs seamlessly on the Android platform, a software stack for mobile devices introduced ...

db4o - database for objects - is a true object database; it manipulates objects in such a fashion that those objects retain their nature throughout their lifetimes - in or out of the database. Object ...