[Hibernate-issues] [Hibernate-JIRA] Commented: (HHH-446) The is no possibility to specify embed-xml on key-many-to-one tag

[<no...@at...>]

The following comment has been added to this issue:

     Author: Martin Zdila
    Created: Thu, 18 Aug 2005 11:31 AM
       Body:
Hello

> I'm not at all sure that use of <key-many-to-one> with XML is a good thing.

Why?

Imagine this hibernate mapping:

<hibernate-mapping>
	<class name="com.kovine.kfe.dao.Widget" table="KFE_WIDGET" abstract="true" lazy="false">
	...
		<many-to-one unique="true" name="labelMessageKey" column="LABEL_KEY_ID" not-null="true" cascade="all" class="com.kovine.kfe.dao.MessageKey" />
	...
	</class>

	<class name="com.kovine.kfe.dao.MessageKey" table="KFE_MESSAGE_KEY">
		<id name="id" column="MESSAGE_KEY_ID" node="@id">
			<generator class="native">
				<param name="sequence">KFE_MESSAGE_KEY_ID_SEQ</param>
			</generator>
		</id>
		
		<property name="key" column="MESSAGE_KEY" not-null="false" unique="true"/>
		
		<map name="messages" cascade="all" inverse="true" order-by="LANGUAGE_ID">
			<key column="MESSAGE_KEY_ID" />
			<map-key type="java.lang.String" formula="LANGUAGE_ID" />
			<one-to-many class="com.kovine.kfe.dao.Message" />
		</map>
	</class>
	
	<class name="com.kovine.kfe.dao.Message" table="KFE_MESSAGE">
		<composite-id>
			<key-many-to-one name="language" column="LANGUAGE_ID" class="com.kovine.kfe.dao.Language" />
			<key-many-to-one name="messageKey" column="MESSAGE_KEY_ID" class="com.kovine.kfe.dao.MessageKey" />
		</composite-id>
	
		<property name="value" column="MESSAGE_VALUE" length="255" />
	</class>
	
	<class name="com.kovine.kfe.dao.Language" table="KFE_LANGUAGE" mutable="false">
		<id name="id" unsaved-value="null" column="LANGUAGE_ID" node="@id" />
		<property name="code" column="CODE" length="3" not-null="true" />
		<property name="language" column="LANGUAGE" length="32" not-null="true" />
	</class>
</hibernate-mapping>


It would be just fine if the generated XML was:

...
<labelMessageKey id="776">
	<messages>
		<Message>
			<language id="en" />
			<messageKey id="776" />
			<value>Thing</value>
		</Message>
		<Message>
			<language id="de" />
			<messageKey id="776" />
			<value>Sache</value>
		<Message>
		<Message>
			<language id="sk" />
			<messageKey id="776" />
			<value>Vec</value>
		<Message>
	</messages>
</labelMessageKey>
...

Please look at this issue (priority = at least medium ;-) ).

--
Martin Zdila
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  http://opensource.atlassian.com/projects/hibernate/browse/HHH-446?page=comments#action_19395

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View the issue:
  http://opensource.atlassian.com/projects/hibernate/browse/HHH-446

Here is an overview of the issue:
---------------------------------------------------------------------
        Key: HHH-446
    Summary: The is no possibility to specify embed-xml on key-many-to-one tag
       Type: Improvement

     Status: Unassigned
   Priority: Minor

 Original Estimate: Unknown
 Time Spent: Unknown
  Remaining: Unknown

    Project: Hibernate3
 Components: 
             core
   Versions:
             3.0.2

   Assignee: 
   Reporter: Markus Jessenitschnig

    Created: Fri, 6 May 2005 10:38 AM
    Updated: Thu, 18 Aug 2005 11:31 AM
Environment: MySQL 

Description:
It is not possible to specify embed-xml="false" on key-many-to-one tags within composite-id tag like it is possible for many-to-one relations.


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