[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-3181) Legacy databases: Advanced handling of missing foreign key values

[Heinz Huber (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Heinz Huber updated HHH-3181:
-----------------------------

    Attachment: not-found-keep-2008-04-04.zip

There was a problem with one-to-one.
Any entity of a one-to-one association was generated without regard of nullability.

> Legacy databases: Advanced handling of missing foreign key values
> -----------------------------------------------------------------
>
>                 Key: HHH-3181
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3181
>             Project: Hibernate3
>          Issue Type: New Feature
>    Affects Versions: 3.2.6
>         Environment: Hibernate 3.2.6
> Oracle 10i (irrelevant)
>            Reporter: Heinz Huber
>         Attachments: not-found-keep-2008-04-04.zip, not-found-keep.zip
>
>
> "keep" as valid value for attribute not-found of many-to-one/many.
> Effect: If the referenced object can't be found, a dummy object with the given key is constructed.
> Example: Account.currency contains the value XYZ. This currency can't be found in the corresponding code table. After loading the account contains a currency object XYZ nontheless.
> Extent:
> src/org/hibernate/hibernate-mapping-3.0.dtd
> src/org/hibernate/cfg/HbmBinder.java
> src/org/hibernate/engine/ForeignKeys.java
> src/org/hibernate/mapping/ManyToOne.java
> src/org/hibernate/mapping/OneToMany.java
> src/org/hibernate/type/EntityType.java
> src/org/hibernate/type/ManyToOneType.java
> src/org/hibernate/type/OneToOneType.java
> src/org/hibernate/type/TypeFactory.java
> There are some TODOs left:
> - The handling of proxies should be improved.
> - Currently works only per target entity (see comment in test).
> But it works for 

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