Hi Paul, Thanks for your suggestion.. But even after implementing your suggestion I get the same result.. It persists once and next time it fails.. its inconsistent..
I made the following changes to the mapping.. @ManyToOne (optional=false, CascadeType.ALL) Is this a defect? Best regards, Srini On Wed, Apr 1, 2009 at 11:20 PM, Paul Copeland (via Nabble) <[email protected]> wrote: > Does it make any difference if you put the CascadeType.ALL on both sides? > > Does it make any difference if you put optional=false on the ManyToOne ? > > @ManyToOne (optional=false, CascadeType.ALL) > > On 4/1/2009 10:29 AM, srini.krish wrote: >> Hi , >> I am trying to create a bidirectional one to many mapping and seeing >> inconsistent behaviour. If I enable trace persistence succeeds and if I >> disable it, it fails. The failure is due to foreign key violation. I think >> its due to the order of the execution of insert statements. The dependent >> table is inserted with rows first. >> >> Here is the outline of mapping I have done. >> (A person can have one or more address. Each address has an unique id and >> a person associated with it) >> public class Person { >> @Id >> private int Id; >> >> @Basic >> private String Name; >> >> @OneToMany (cascade=CascadeType.ALL, mappedBy="person") >> @OrderBy >> private Collection<Address> addresses; >> } >> >> public class Address { >> @Id >> private int id; >> >> @ManyToOne >> @JoinColumn(name="PersonId", nullable=false) >> private Person person; >> } >> >> I try the following code >> >> //Create new person >> // Create new addresses(2) >> //To each address add the same person. >> //To the person add addressCollection.(size 2). >> >> em.getTransaction().begin(); >> em.persist(person); >> em.getTransaction().commit(); >> >> When I do this, sometimes person is first persisted and address is next. >> This case passes. (This happen when trace is on). >> >> The other times, address is persisted first. This fails for want of person >> id. (This happens when trace is at Info level). >> >> Can anybody please help me, if I am missing something? >> >> Best Regards, >> Srini >> > > > ________________________________ > This email is a reply to your post @ > http://n2.nabble.com/Inconsistent-behaviour-with-Bi-directional-One-to-Many-Mapping.-tp2570464p2570589.html > You can reply by email or by visting the link above. > > -- View this message in context: http://n2.nabble.com/Inconsistent-behaviour-with-Bi-directional-One-to-Many-Mapping.-tp2570464p2573585.html Sent from the OpenJPA Users mailing list archive at Nabble.com.
