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[Hibernate-issues] [Hibernate-JIRA] Updated: (HB-513) QueryException using composite elements
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From: <leg...@at...> - 2003-12-02 04:16:23
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The following issue has been updated:
Updater: Matt Read (mailto:mr...@sp...)
Date: Mon, 1 Dec 2003 4:21 PM
Changes:
Attachment changed to EntityA.hbm.xml
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For a full history of the issue, see:
http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-513&page=history
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View the issue:
http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-513
Here is an overview of the issue:
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Key: HB-513
Summary: QueryException using composite elements
Type: Bug
Status: Unassigned
Priority: Minor
Project: Hibernate2
Components:
core
Versions:
2.1 rc1
Assignee:
Reporter: Matt Read
Created: Mon, 1 Dec 2003 4:14 PM
Updated: Mon, 1 Dec 2003 4:21 PM
Environment: Hibernate 2.1rc1
Sun JDK 1.4.2_01 on Windows XP
Description:
See also: http://forum.hibernate.org/viewtopic.php?t=924854
I've tried to make this as simple as possible but I can't find any guidelines on exactly what that means. I've included everything I think is needed to recreate the problem but I can probably make up a standalone jar if absolutely necessary. Let me know if this would be useful.
Here's 2 Java classes with XDoclet markup, EntityA is a standard entity and AssocationForA is a component used in the many-to-many assocation from Entity to itself.
/*
* Created on 17-Nov-2003
*
*/
package gatt.example;
import java.util.HashSet;
import java.util.Set;
/**
* @hibernate.class table="EntityA"
* proxy = "gatt.example.EntityA"
*
*/
public class EntityA {
long id;
protected Set association = new HashSet();
/**
* @return
*
* @hibernate.id column="id"
* generator-class="increment"
* unsaved-value="0"
*
*/
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
/**
*
* @hibernate.set cascade="all"
* lazy="true"
* table="Association_To_Self"
* @hibernate.collection-key column="entityA_id"
* @hibernate.collection-composite-element class="gatt.example.AssociationForA"
*
* @return
*/
public Set getAssociation() {
return association;
}
/**
*
* @param associationForA
*/
public void setAssociation(Set associationForA) {
this.association = associationForA;
}
}
/*
* Created on 17-Nov-2003
*
*/
package gatt.example;
import java.util.Date;
/**
* @hibernate.component
*
* @author Gatt
*
*/
public class AssociationForA {
protected Date date;
protected EntityA reverseAssociation;
/**
* @hibernate.property
*
* @return Returns the date.
*/
public Date getDate() {
return date;
}
/**
* @param date The date to set.
*/
public void setDate(Date date) {
this.date = date;
}
/**
* @hibernate.many-to-one column="association_id"
* not-null="true"
* cascade="save-update"
*
* @return Returns the associated instance.
*/
public EntityA getReverseAssociation() {
return reverseAssociation;
}
/**
* @param attackedBy The attackedBy to set.
*/
public void setReverseAssociation(EntityA reverseAssociation) {
this.reverseAssociation = reverseAssociation;
}
}
Here is the generated mapping file:
<?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="gatt.example.EntityA"
table="EntityA"
proxy="gatt.example.EntityA"
dynamic-update="false"
dynamic-insert="false"
>
<id
name="id"
column="id"
type="long"
unsaved-value="0"
>
<generator class="increment">
</generator>
</id>
<set
name="association"
table="Association_To_Self"
lazy="true"
inverse="false"
cascade="all"
sort="unsorted"
>
<key
column="entityA_id"
/>
<composite-element
class="gatt.example.AssociationForA"
>
<property
name="date"
type="java.util.Date"
update="true"
insert="true"
column="date"
/>
<many-to-one
name="reverseAssociation"
class="gatt.example.EntityA"
cascade="save-update"
outer-join="auto"
update="true"
insert="true"
column="association_id"
not-null="true"
/>
</composite-element>
</set>
<!--
To add non XDoclet property mappings, create a file named
hibernate-properties-EntityA.xml
containing the additional properties and place it in your merge dir.
-->
</class>
</hibernate-mapping>
And here is the test class:
/*
* Created on Dec 1, 2003
*
*/
package gatt.example;
import gatt.util.hibernate.HibernateFilter;
import junit.framework.TestCase;
import net.sf.hibernate.Query;
import net.sf.hibernate.Session;
import net.sf.hibernate.SessionFactory;
/**
* @author Gatt
*
*/
public class EntityATest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(EntityATest.class);
}
protected void setUp() throws Exception {
super.setUp();
}
protected void tearDown() throws Exception {
super.tearDown();
}
/**
* Constructor for EntityATest.
*
* @param arg0
*/
public EntityATest(String arg0) {
super(arg0);
}
public void testQuery() {
try {
SessionFactory sf = HibernateFilter.getSessionFactory();
Session session = sf.openSession();
// get the number of associations
Query query = session.createQuery("select count(assoc) from EntityA entityA "
+ "join entityA.association assoc");
int count = ((Integer) query.iterate().next()).intValue();
} catch (Exception e) {
e.printStackTrace();
}
}
}
And finally the error:
net.sf.hibernate.QueryException: could not resolve property: id of: gatt.example.AssociationForA [select count(assoc) from gatt.example.EntityA entityA join entityA.association assoc]
at net.sf.hibernate.persister.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:38)
at net.sf.hibernate.collection.AbstractCollectionPersister.toType(AbstractCollectionPersister.java:678)
at net.sf.hibernate.hql.PathExpressionParser.getPropertyType(PathExpressionParser.java:244)
at net.sf.hibernate.hql.PathExpressionParser.end(PathExpressionParser.java:283)
at net.sf.hibernate.hql.ParserHelper.parse(ParserHelper.java:30)
at net.sf.hibernate.hql.SelectParser.token(SelectParser.java:140)
at net.sf.hibernate.hql.ClauseParser.token(ClauseParser.java:87)
at net.sf.hibernate.hql.ClauseParser.end(ClauseParser.java:114)
at net.sf.hibernate.hql.PreprocessingParser.end(PreprocessingParser.java:143)
at net.sf.hibernate.hql.ParserHelper.parse(ParserHelper.java:30)
at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:152)
at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:141)
at net.sf.hibernate.impl.SessionFactoryImpl.getQuery(SessionFactoryImpl.java:287)
at net.sf.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:1488)
at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1518)
at net.sf.hibernate.impl.QueryImpl.iterate(QueryImpl.java:33)
at gatt.example.EntityATest.testQuery(EntityATest.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:395)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:279)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:171)
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