This project aims to offer an easy-to-extend Java DAS server framework.
It offers several advantages:
* Implementing data sources is very easy but also flexible and powerful.
* Data caching is built into the system, with access to the caching
mechanism made available to the data sources.
* All aspects of the server are highly configurable, including
selecting options where the DAS 1.53 specification offers
choices to the implementor.
* The latest Java technologies have been used throughout the
system to optimise performance and simplify data source development.
* Wherever possible the same terminology is used in the API as in
the DAS specification and XML - again, making data source
development more easy.
* The server allows XSLT transforms of the DAS XML to be configured
to provide a simple DAS client view (limited to the single DAS
source).
More details of the DAS protocol, DAS servers and DAS clients can
be found at http://www.biodas.org/wiki/Main_Page.
The first version of this server is a complete implementation of
Distributed Sequence Annotation System (DAS) Version 1.53.
If you are interested in learning more about DAS 1.53, the
specification is highly recommended as a concise and complete
description of the DAS protocol that can be obtained from:
http://biodas.org/documents/spec.html