database driven webservice using axis

I would like to create a database driven webservice (only to retrieve data)

so I want to know where to start ? (POJO or EJB)

is it be开发者_开发知识库tter to make individual functions for each query?

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Use WSO2 DSS[1]. This is a product specifically created for such purposes.

[1] http://wso2.org/library/dss