[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4496) Entity with composite-id and serial foreign-key one-to-many set mapping can't be saved under 3.3.x and under 3.2.x can be saved but can't fetch set to father object

[Yi, Han (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-4496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=34216#action_34216 ] 

Yi, Han commented on HHH-4496:
------------------------------

I've known why under 3.2.5 the set is empty. it's because of the query under the same session context got the same ExtraInfo which had existed and without a not-empty set.
but in the other session, just query on the same condition, the new exception was thrown:

org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of net.vuniverse.db.ExtrainfoId.sn
        at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
        at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:64)
        at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValues(AbstractComponentTuplizer.java:70)
        at org.hibernate.tuple.component.PojoComponentTuplizer.getPropertyValues(PojoComponentTuplizer.java:86)
        at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:353)
        at org.hibernate.type.ComponentType.getHashCode(ComponentType.java:184)
        at org.hibernate.engine.EntityKey.generateHashCode(EntityKey.java:104)
        at org.hibernate.engine.EntityKey.<init>(EntityKey.java:48)
        at org.hibernate.engine.StatefulPersistenceContext.getCollectionOwner(StatefulPersistenceContext.java:678)
        at org.hibernate.engine.loading.CollectionLoadContext.getLoadingCollection(CollectionLoadContext.java:107)
        at org.hibernate.loader.Loader.readCollectionElement(Loader.java:1003)
        at org.hibernate.loader.Loader.readCollectionElements(Loader.java:646)
        at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:591)
        at org.hibernate.loader.Loader.doQuery(Loader.java:701)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
        at org.hibernate.loader.Loader.doList(Loader.java:2220)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
        at org.hibernate.loader.Loader.list(Loader.java:2099)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)
        at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
        at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
        ......

> Entity with composite-id and serial foreign-key one-to-many set mapping can't be saved under 3.3.x and under 3.2.x can be saved but can't fetch set to father object 
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HHH-4496
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4496
>             Project: Hibernate Core
>          Issue Type: Bug
>    Affects Versions: 3.2.5, 3.3.1, 3.3.2
>         Environment: jdk1.6.0_13
> windows 2003 server
> hibernate 3.2.5, 3.3.1, 3.3.2
> database: postgreSQL8.4
>            Reporter: Yi, Han
>
> Mapping:
>    <class name="ExtraInfo" table="extrainfo">
>     <composite-id class="ExtraInfoId" name="key">
>       <key-property column="sn" length="20" name="cid" type="string"/>
>       <key-property column="composite" length="2" name="composite" type="string"/>
>       <key-property column="fileName" length="300" name="fileName" type="string"/>
>     </composite-id>
>     <property name="id" generated="insert" insert="false" type="java.lang.Integer" unique="true" update="false">
>       <column name="id" not-null="true"/>
>     </property>
>     ...
>     <setinverse="true" name="scanDatas">
>       <key property-ref="id">
>         <column name="id"/>
>       </key>
>       <one-to-many class="ScanData"/>
>     </set>
>   </class>
>   <class name="ScanData" table="scandata">
>     <composite-id class="net.vuniverse.app.biochemanalysis.db.model.ScanDataId" name="key">
>       <key-property column="id" name="id" type="java.lang.Integer"/>
>       <key-property column="idx" name="idx" type="java.lang.Integer"/>
>     </composite-id>
>     <many-to-one fetch="join" insert="false" name="extraInfo" property-ref="id" update="false">
>       <column name="id"/>
>     </many-to-one>
>     <property name="data" type="java.lang.Float">
>       <column name="data" precision="8" scale="8"/>
>     </property>
>   </class>
> Code:
> ExtraInfoId eid = new ExtraInfoId("a", "1", "aa.txt");
> ExtraInfo extra = new ExtraInfo(eid);
> session.save(extra);
> session.flush();
> int id = extra.getId();
> for (int i = 0; i < 3; i++) {
>     ScanData sd = new ScanData(new ScanDataId(id, 1));
>     sd.setData(0.5f * (i + 1));
>     session.save(sd);
> }
> session.flush();
> extra = session.createQuery("from ExtraInfo a left join fetch a.scandatas b where a.id='" + id + "'").list().get(0);
> Set<ScanData> scandatas = extra.getScanDatas();
> for (ScanData sd : scandatas) {
>     System.out.println(sd.getData());
> }
> under all version, mapping can be varified correctly.
> under version 3.2.5, new ExtraInfo can be saved. but the query with "left join fetch" can't return a Extra with set full of ScanData. the size of scandatas is 0.
> under version 3.3.x, new ExtraInfo can't be saved. and the following exception is thrown:
> java.lang.ClassCastException: java.lang.Integer
>         at org.hibernate.type.ComponentType.toLoggableString(ComponentType.java:400)
>          at org.hibernate.pretty.MessageHelper.collectionInfoString(MessageHelper.java:307)
>          at org.hibernate.engine.Collections.processReachableCollection(Collections.java:199)
>          at org.hibernate.event.def.FlushVisitor.processCollection(FlushVisitor.java:60)
>          at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:124)
>          at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:84)
>          at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:78)
>          at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:161)
>          at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
>          at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
>          at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:49)
>          at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
> .........

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