Db4o

db4o (database for objects) is a high-performance, embeddable open source object database for Java and .NET developers. It is developed, commercially licensed and supported by Versant. db4o is written in Java and .NET and provides the respective APIs. db4o can run on any operating system that supports Java or .NET. db4o is offered under a dual licence providing a user with a choice between free and commercial depending on the project needs. The d... more

db4o (database for objects) is a high-performance, embeddable open source object database for Java and .NET developers. It is developed, commercially licensed and supported by Versant. db4o is written in Java and .NET and provides the respective APIs. db4o can run on any operating system that supports Java or .NET. db4o is offered under a dual licence providing a user with a choice between free and commercial depending on the project needs. The db4o engine is free when licensed under the General Public License (GPL) or distributed with non-GPL open source projects under the db4o Opensource Compatibility License (dOCL). A commercial license is required to embed db4o in a non-GPL, commercial product and/or when professional support is required. db4o quick fact sheet is available on db4o official website. Object-oriented Database System term goes back to around 1985, though the first research developments in this area started a bit earlier in mid-1970s. The first commercial object... less