30. License


db4objects Inc. supplies the object database engine db4o under a dual licensing regime:


    30.1. General Public License (GPL)

    db4o is free to be used:
    - for development,
    - in-house as long as no deployment to third parties takes place,
    - together with works that are placed under the GPL themselves.

    You should have received a copy of the GPL in the file db4o.license.txt together with the db4o distribution.

    If you have questions about when a commercial license is required, please
    read our GPL Interpretation policy for further detail, available at:

    http://www.db4o.com/about/company/legalpolicies/gplinterpretation.aspx


    30.2. Commercial License

    For incorporation into own commercial products and for use together with redistributed software that is not placed under the GPL, db4o is also available under a commercial license.

    Visit the purchasing area on the db4o website or contact db4o sales for licensing terms and pricing.


    30.3. Bundled 3rd Party Licenses


    The db4o distribution comes with the following 3rd party libraries:

    -Apache Ant(Apache Software License)

    Files: lib/ant.jar, lib/ant.license.txt

    Ant can be used as a make tool for class file based optimization of native
    queries at compile time.

    This product includes software developed by the Apache Software Foundation
    (http://www.apache.org/).

    -BLOAT(GNU LGPL)

    Files: lib/bloat-1.0.jar, lib/bloat.license.txt

    Bloat is used for bytecode analysis during native queries optimization. It
    needs to be on the classpath during runtime at load time or query execution
    time for just-in-time optimization. Preoptimized class files are not dependent
    on BLOAT at runtime.



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    Doctor courtesy of db4objects Inc.