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I want help for generating the Unique key constraint using .hbm.xml

<property name="name" type="java.lang.String" >
<column name="name" sql-type="mediumtext"
not-null="true" index="products_name_idx" />
</property>

<many-to-one name="products"
class="dao.entity.Products"
cascade="none" not-null="true" column="product_id"
unique-key="products_name_idx" />

Actually combinations name and product_id is unique.How to generate this using .hbm.xml, so that it will geneate corresponding index name in the mysql data base.

Next,
I used the index attribute in the property tag. but it is not generating the index corresponding index name in the data base. Is there any solution for this.
If any one know about this pls, reply.

Hi,

Look at the following. I think it might help you.

http://www.hibernate.org/hib_docs/v3/re ... -naturalid

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

Thanks a lot,
I solved that problem using natural-id.

Is there any way to change the index name in the mysql data base using index attribute in the property in .hbm.xml