Problem using join in subclass

Brevity · **Joined:** Thu Jan 25, 2007 3:35 pm **Posts:** 2

Hi --

I'm trying to mix table per class and table per subclass mappings and I'm running into an exception when using property elements inside of the join element. I am using Hibernate 3.1.1

My mapping looks like this:

Code:

<subclass
    name="com.x.app.gdl.lists.bean.FilterListItem"
    discriminator-value="8"
>
    <join table="FilterItem" fetch="select">
        <property
             name="inputQuery"
             type="java.lang.String"
         />
         <property
             name="normalizedQuery"
             type="java.lang.String"
         />
    </join>
</subclass>

I am receiving the following errors:

17:00:56,951 ERROR main org.hibernate.util.XMLHelper$ErrorLogger - Error parsing XML: XML InputStream(186) Element "join" does not allow "property" here.
17:00:56,952 ERROR main org.hibernate.util.XMLHelper$ErrorLogger - Error parsing XML: XML InputStream(190) Element "join" does not allow "property" here.
17:00:56,953 ERROR main org.hibernate.util.XMLHelper$ErrorLogger - Error parsing XML: XML InputStream(194) Element "join" requires additional elements.

According to the example I'm following in the Hibernate 3 documentation, this shouldn't be a problem.

http://www.hibernate.org/hib_docs/v3/re ... ersubclass

Can anyone tell me what I'm doing wrong here?

tenwit · **Joined:** Thu Dec 23, 2004 9:08 pm **Posts:** 2008

The first element inside a <join> must be its <key>. Add that in and it'll parse.

FYI, Hibernate provides aliases for java.lang classes: you can use type="string" to improve legibility.

Brevity · **Joined:** Thu Jan 25, 2007 3:35 pm **Posts:** 2

Ah right...

While looking at the example, I thought it was odd that no key definition was shown and thought it might be a byproduct of the mixed mappings. Thanks for the tip, that did it.