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 Post subject: Using JoinFormulas in ManyToMany relations
PostPosted: Tue Jan 19, 2010 10:28 am 
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Joined: Tue Jan 19, 2010 10:17 am
Posts: 1
I'm trying to overcome a problem joining on a table with a composite key using only one of the fields. I've seen some examples using @JoinFormula to get around this, and I upgraded to beta to take advantage of that. However, many of my cases are ManyToMany, and I can't find a way to annotate this. Here's an example:


@ManyToMany
@JoinTable(name="TBLCUSTOMER_CONTACT",
joinColumns=@JoinColumn(name="CUSTOMER_ID"),
inverseJoinColumns=@JoinColumnsOrFormulas({
@JoinColumnOrFormula(column=@JoinColumn(name="CONTACT_ID")),
@JoinColumnOrFormula(formula=@JoinFormula(value="0" referencedColumnName="RECORD_SUFFIX"))
})
)

obviously, this doesn't work because inverseJoinColumns is expecting a JoinColumn[], rather than a JoinColumnsOrFormulas. Is there a proper way to annotate this?

Thanks,
Ian


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