I'm trying to create a table that has a a unique constraint that consists of multiple columns. After some time i found <properties> and when i use it then i get the correct unique constraint. But the code no longer runs when i try to read some objects using the Criteria API. When the properties are define "as usual" everything works fine, when i wrap them int a <properties> element then hibernate complains that it cannot find the property. Does anyone have a small hint for me?
Mapping documents:
Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="test">
<class name="Test" table="TEST" lazy="false">
<id name="myID" column="ID" access="field">
<generator class="uuid"/>
</id>
<properties name="someName" unique="true">
<property name="myName" type="string" column="name" access="field" not-null="true"/>
<property name="myDomain" type="string" length="16" column="domain" access="field" not-null="true"/>
</properties>
</class>
</hibernate-mapping>
Code:
package test;
public class Test
{
private String myID;
private String myName;
private String myDomain;
}
Criteria loCriteria = loSession.createCriteria(Test.class);
loCriteria.add(Restrictions.eq("myName", "aaa"));
return (Test) loCriteria.uniqueResult();
Full stack trace of any exception that occurs:Code:
org.hibernate.QueryException: could not resolve property: myName of: test.Test
at org.hibernate.persister.entity.AbstractPropertyMapping.throwPropertyException(AbstractPropertyMapping.java:43)
at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:37)
at org.hibernate.persister.entity.BasicEntityPersister.getSubclassPropertyTableNumber(BasicEntityPersister.java:1111)
at org.hibernate.persister.entity.BasicEntityPropertyMapping.toColumns(BasicEntityPropertyMapping.java:31)
at org.hibernate.persister.entity.BasicEntityPersister.toColumns(BasicEntityPersister.java:1086)
at org.hibernate.loader.criteria.CriteriaQueryTranslator.getColumns(CriteriaQueryTranslator.java:403)
at org.hibernate.loader.criteria.CriteriaQueryTranslator.getColumnsUsingProjection(CriteriaQueryTranslator.java:369)
at org.hibernate.criterion.SimpleExpression.toSqlString(SimpleExpression.java:42)
at org.hibernate.loader.criteria.CriteriaQueryTranslator.getWhereCondition(CriteriaQueryTranslator.java:314)
at org.hibernate.loader.criteria.CriteriaLoader.<init>(CriteriaLoader.java:92)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1303)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:300)
at org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:433)
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