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 ...

A look at some of the best database and RDBMS tools for Java software developers. Learn more about Java and database programming. We may earn from vendors via affiliate links or sponsorships. This ...

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 ...

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Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions. Programmers frequently need to ...

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 ...

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 ...

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 ...