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Mapping Maps of Maps or Maps of Lists

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gjoseph

Post subject: Mapping Maps of Maps or Maps of Lists

Posted: Thu Aug 24, 2006 4:19 pm

Newbie

Joined: Thu Aug 24, 2006 4:10 pm
Posts: 5

Hi,

I'd like to be able to map either of

Code:

Map<Locale, List<Tag>>

Code:

Map<Locale, Map<String, String>>

(considering that the potential Tag above class is a simple javabean with two name/value String properties)

Any idea how I could do this, specifically using annotations? Any hint using hbm.xml would be fine too of course ;)

What I have until now is

Code:

    @CollectionOfElements
    public List<Tag> getTags()

... where I added a Locale property to my Tag class, but that's not really satisfying, since it doesn't really reflect the domain reality, and the client code will always need to access the "tags" per Locale anyways.

Thanks for any tip ! Cheers,

greg

Hibernate version:
3.2.0-cr2 + -annotations-3.2.0-cr1

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gjoseph

Post subject:

Posted: Thu Aug 24, 2006 4:36 pm

Newbie

Joined: Thu Aug 24, 2006 4:10 pm
Posts: 5

I forgot to mention that, ideally, I'd like this to map to the following db layout:

Code:

+----------------------------------+------------+--------------+--------+
| owning_entity_guid               | name       | value        | locale |
+----------------------------------+------------+--------------+--------+
| ff8080810d41e763010d41e78f800002 | tag name   | tag value    | fr_CA  |
| ff8080810d41e763010d41e78f800002 | tag name 2 | tag value 2  | fr_CA  |
| ff8080810d41e763010d41e78f800002 | tag name   | value for DE | de_DE  |
| ff8080810d41e763010d41e78f800004 | tag name   | othervalue   | fr_CA  |
| ff8080810d41e763010d41e78f800004 | tag name   | otherVal DE  | de_DE  |
+----------------------------------+------------+--------------+--------+

(+ potentially a generated (not part of my model) pk which is missing in this example)

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gjoseph

Post subject:

Posted: Mon Aug 28, 2006 1:28 pm

Newbie

Joined: Thu Aug 24, 2006 4:10 pm
Posts: 5

any idea / suggestion ? ... whistles

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