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Linuxhippy
 Post subject: How to create nullable ManyToOne relationship?
PostPosted: Thu Aug 05, 2010 2:35 pm 
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Joined: Tue Jul 03, 2007 8:47 am
Posts: 46
Hello,

Is it possible to create nullable ManyToOne relationships?
I tried to set the nullable attribut on JoinColumn, and also tried optional=true, but anyway the DDL generated by Hibernate contains "NOT NULL" constraints.

Code:
    @JoinColumn(nullable = true)
    @ManyToOne(fetch = FetchType.EAGER)
    Flugzeug flugzeug;


Whats the proper way to make ManyToOne relationships nullable?

Thank you in advance, Clemens
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Linuxhippy
 Post subject: Re: How to create nullable ManyToOne relationship?
PostPosted: Thu Aug 05, 2010 3:59 pm 
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Joined: Tue Jul 03, 2007 8:47 am
Posts: 46
The problem was @JoinColumn needs a name in order to make the other attributes work.

Thanks, Clemens
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