[hibernate-issues] [Hibernate-JIRA] Created: (HBX-1151) let JDBCBinder check for excluded foreign key columns in many-to-many tables

[Andreas Brieg (JIRA)]

let JDBCBinder check for excluded foreign key columns in many-to-many tables
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                 Key: HBX-1151
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-1151
             Project: Hibernate Tools
          Issue Type: Patch
    Affects Versions: 3.2.4.GA
         Environment: hibernate-tools revision 17926
            Reporter: Andreas Brieg
            Priority: Minor
         Attachments: jdbcbinder_check_foreignkey_excluded_for_many_to_many_table.patch

When processing a many-to-many table the JDBCBinder looks only for other foreign key columns in the many-to-many table in method bindOneToMany(PersistentClass, ForeignKey, Set, Mapping) but it doesn't ask the reverse engineering strategy if those foreign key columns are excluded.

The patch changes the bindOneToMany(PersistentClass, ForeignKey, Set, Mapping) method when processing a many-to-many table so that it asks the reverse engineering strategy if the foreign key is excluded. Only if it isn't excluded it is chosen for the mapping of the other side of the many-to-many table.

This lets you map tables many-to-many tables, which have a third optional foreign key. This may be needed in case the optional foreign key is only used by other modules, which access the database.

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