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 Post subject: Hibernate "effective date pattern" mapping under many-to-one
PostPosted: Tue Jul 27, 2010 6:51 am 
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Joined: Tue Jul 27, 2010 6:15 am
Posts: 1
there is a table T, containing two fields product_id and date_of_production
and a table product_info, containing columns product_id, a number of columns describing product and product#BGN and product#END columns, so for each product we have quite different properties dependent on date of production. The problem is to map many-to-one in such a way, that the resulting select would have the following on condition:

on T.product_id = product_info.product_id and T.date_of_production between product_info.product#BGN and product_info.product#END

OR:

on T.product_id = product_info.product_id and T.date_of_production > product_info.product#BGN and T.date_of_production<product_info.product#END


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