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The moose likes Object Relational Mapping and the fly likes OneToMany relationship Big Moose Saloon
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JavaRanch » Java Forums » Databases » Object Relational Mapping
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Author

OneToMany relationship

Will Myers
Ranch Hand

Joined: Aug 05, 2009
Posts: 325

Hi I need some help in mapping a relationship...

my tables look like:



I'm trying to map the CurrencyHolidays as a set inside the Currency object like so:



but this is causing an exception:



I can't change the database schema so what am i doing wrong?
Will Myers
Ranch Hand

Joined: Aug 05, 2009
Posts: 325

so contrary to what this says you need to add



to the id column in the source entity
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: OneToMany relationship