db4o - database for objects 2.8
db4o - database for objects - is a fast client/server
Java object database optimised for mobile platforms and other low-resource environments. A footprint of 250 kB saves device memory and allows online-download. ACID transactions keep all data safe in case of unplanned VM stops. Query-By-Example minimizes resource consumption and improves performance. The additional S.O.D.A. query API let's you query your data with all the power of
Java. Automatic object recognition permits zero-admin deployment. High integration with the
Java programming language omits driver overhead and maximizes speed. All standard
Java constructs like arrays and JDK collections are supported. Further functionality includes cascade-on-delete, callback methods and blob storage. WeakReference memory management ensures a constant low memory footprint. No "enhancers": Changes to application classes are not necessary to make objects persistent. db4o supports
Java Web Start. db4o is threadsafe and runs in servlet environments like Tomcat.
object database java wireless mobile EPOC OODB ODBMS persistent JDO JDBC driver server class guid scheme query