Hi People, Sorry by my bad english..

I have a problem with de one-to-many mapping. Take a look:

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>
<class
name="DataAttrib"
table="DATAATTRIB"
dynamic-update="false"
dynamic-insert="false"
>

<composite-id>
<key-property type="java.lang.String" name="cdData" column="CDDATA" l ength="18" />
<key-property type="java.lang.Long" name="cdAttrib" column="CDSECTIONATTRIB" />
</composite-id>

<property
name="nmString"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="NMSTRING"
/>

<property
name="vlFloat"
type="java.lang.Float"
update="true"
insert="true"
access="property"
column="VLFLOAT"
/>

<property
name="dtDate"
type="java.util.Date"
update="true"
insert="true"
access="property"
column="DTDATE"
/>

<property
name="dsMemo"
type="text"
update="true"
insert="true"
access="property"
column="DSMEMO"
/>

<set
name="myDataAttribValue"
table="FRDATAATTRIBVALUE"
lazy="false"
inverse="true"
cascade="none"
sort="unsorted"
>

<key>
<column name="CDFORMDATA" />
<column name="CDNATTRIB"/>
<column name="CDVALUE"/>
</key>

<one-to-many
class="FRDataAttribValue"
/>
</set>

<!--
To add non XDoclet property mappings, create a file named
hibernate-properties-FRFormDataAttribute.xml
containing the additional properties and place it in your merge dir.
-->

</class>

</hibernate-mapping>

I have a problem in this mapping because the composite keys in the one-to-many mapping. When i execute my server jBoss, I receive the message error:

net.sf.hibernate.MappingException: collection foreign key mapping has wrong number of columns: DataAttrib.myDataAttribValue type: DataAttrib

somebody can help me ??

Thanks ...
Jeferson...


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well ... as the message said, the numbers of columns are not correct ...

you need on both sides the same number of columns ... in compositeID of "FRDataAttribValue" and in your "Set"

gtx
curio

curio, the mapping of the class FRDataAttribValue is:

<composite-id>
<key-property type="java.lang.String" name="cdFormData" column="CDFORMDATA" length="18" />
<key-property type="java.lang.Long" name="cdSectionAttrib" column="CDSECTIONATTRIB" />
<key-property type="java.lang.Long" name="cdValue" column="CDVALUE" />
</composite-id>

This is equal of the mapping in the set attribute in the previous mapping ...

You have other ideia for solution this problem ???

Thanks..
Jeferson..