Although there are a lot of databases, we have had some reasons to
develop ozone. It owes its existence to various reasons, the
most important of which is that we needed a tool with which to
model and implement complex database applications, but we did not
have access to a suitable package to adapt to our needs. We also
did not want to to have to convert to new, package-specific
methods. Because of this, we decided to develop one ourselves from
scratch, according to the following requirements:
This goal remained unattainable for quite some time, because of the
effort required with older technologies. The appearance of Java,
with the following characteristics, allowed us to proceed.
Natural, easy integration of database development with the main software effort
- Persistent objects freely available on the network.
- Particularly powerful multiuser support
- Speed adequate to the task
ozone offers several possibilities similar to other systems,
and combines these with new concepts. Insofar as possible, we have
used existing techniques and technologies, and extended them only
when it seemed absolutely necessary; to ensure certain theoretical
aspects or for implementation specific reasons, for example.
- Run Time Type Information (RTTI)
- Dynamically loadable code
- Security concepts
- Adequate support for threading