Designing DAOs for data sources other than a database

Posted by James P. on Stack Overflow See other posts from Stack Overflow or by James P.
Published on 2010-03-28T13:10:24Z Indexed on 2010/03/28 13:13 UTC
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dao

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data

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Xml

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fetch

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java

Hi,

Until now I've been used to using DAOs to retrieve information from databases. Other sources of data are possible though and I'm wondering if and how the pattern could be applied in general.

For example, I'm now working on an application that fetches XML on the web. The XML file could be considered as a data source and the actual fetching is similar in principle to a database request. I'm not quite sure how the DAO could be structured though.

Any views on the subject are welcome.

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