[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3181) Legacy databases: Advanced handling of missing foreign key values
Max Rydahl Andersen (JIRA)
noreply at atlassian.com
Thu Mar 13 17:58:33 EDT 2008
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_29791 ]
Max Rydahl Andersen commented on HHH-3181:
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A dummy object ? What good would that do ?
> 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.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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