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The following issue has been closed.
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View the issue:
http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-253
Here is an overview of the issue:
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Key: HB-253
Summary: Filter with "elements(this.employees)" clause
Type: Bug
Status: Closed
Priority: Major
Resolution: REJECTED
Project: Hibernate2
Versions:
2.1 beta 1
Assignee:
Reporter: Alessandro Vernet
Created: Tue, 12 Aug 2003 2:20 PM
Updated: Tue, 26 Aug 2003 1:28 PM
Description:
I am doing a:
session.filter(regions, "where ? in elements(this.employees)", employee, Hibernate.entity(Employee.class));
Where Region.hbm.xml defines employees as:
<hibernate-mapping>
<class name="bean.Region" table="owf_region" mutable="false">
...
<set name="employees" table="owf_employee_region">
<key column="region_id"/>
<many-to-many class="bean.Employee" column="employee_id"/>
</set>
</class>
</hibernate-mapping>
I get:
net.sf.hibernate.QueryException: could not resolve property: employees [where ? in elements(this.employees)]
at net.sf.hibernate.persister.AbstractPropertyMapping.getPropertyType(AbstractPropertyMapping.java:33)
at net.sf.hibernate.hql.PathExpressionParser.getPropertyType(PathExpressionParser.java:242)
at net.sf.hibernate.hql.PathExpressionParser.token(PathExpressionParser.java:122)
at net.sf.hibernate.hql.WhereParser.doPathExpression(WhereParser.java:333)
at net.sf.hibernate.hql.WhereParser.doToken(WhereParser.java:365)
at net.sf.hibernate.hql.WhereParser.token(WhereParser.java:250)
at net.sf.hibernate.hql.ClauseParser.token(ClauseParser.java:87)
at net.sf.hibernate.hql.PreprocessingParser.end(PreprocessingParser.java:142)
at net.sf.hibernate.hql.ParserHelper.parse(ParserHelper.java:30)
at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:148)
at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:135)
at net.sf.hibernate.hql.FilterTranslator.compile(FilterTranslator.java:25)
at net.sf.hibernate.impl.SessionFactoryImpl.getFilter(SessionFactoryImpl.java:269)
at net.sf.hibernate.impl.SessionImpl.getFilterTranslator(SessionImpl.java:3149)
at net.sf.hibernate.impl.SessionImpl.filter(SessionImpl.java:3169)
at net.sf.hibernate.impl.SessionImpl.filter(SessionImpl.java:3109)
I expected this to work. Pretty much the same HQL works just fine when used in a session.createQuery(), e.g.:
session.createQuery("from Region as r where ? in elements(r.employees)").setEntity(0, employee).list()
Alex
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