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krasig
 Post subject: Need help obout <properties>
PostPosted: Thu May 31, 2007 12:16 pm 
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Joined: Fri Feb 10, 2006 8:33 am
Posts: 32
I have this maping:
<class name="SchemeItem" table="scheme" optimistic-lock="none">
.
.
<properties name="aa21" update="true" insert="true" >
<property name="code" type="string" column="code" not-null="true"/>
<property name="idVersion" type="integer" column="id_version" not-null="true" update="false" insert="false"/>
</properties>
<set name="measureUnits">
<key property-ref="aa21">
<column name="code"/>
<column name="id_scheme"/>
</key>
<one-to-many class="SchemeItemUnits"/>
</set>
</class>

And after test like:
session.get(SchemeItem.class, 12873);

Exception in thread "main" java.lang.ClassCastException: mytest.SchemeItem
at org.hibernate.type.CollectionType.getKeyOfOwner(CollectionType.java:355)
at org.hibernate.type.CollectionType.resolve(CollectionType.java:368)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
at org.hibernate.loader.Loader.doQuery(Loader.java:729)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1860)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3044)
at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:395)
at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:375)
at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:139)
at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:195)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:103)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:815)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:808)
at mytest.ProbaSchemeItem.main(ProbaSchemeItem.java:24)


Any ideas what to do?
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krasig
 Post subject:
PostPosted: Thu May 31, 2007 1:39 pm 
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Joined: Fri Feb 10, 2006 8:33 am
Posts: 32
I can't belive than nobady never uded <properties> . This is amazing.
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pepelnm
 Post subject:
PostPosted: Thu May 31, 2007 2:02 pm 
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Joined: Thu Sep 22, 2005 10:29 am
Posts: 285
Location: Almassera/Valencia/Spain/EU/Earth/Solar system/Milky Way/Local Group/Virgo Supercluster
Try with this:
Code:
<class name="mytest.SchemeItem" table="scheme" optimistic-lock="none">
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krasig
 Post subject:
PostPosted: Thu May 31, 2007 2:55 pm 
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Joined: Fri Feb 10, 2006 8:33 am
Posts: 32
Are you kidding?!
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pepelnm
 Post subject:
PostPosted: Thu May 31, 2007 3:05 pm 
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Joined: Thu Sep 22, 2005 10:29 am
Posts: 285
Location: Almassera/Valencia/Spain/EU/Earth/Solar system/Milky Way/Local Group/Virgo Supercluster
Are you?
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pepelnm
 Post subject:
PostPosted: Thu May 31, 2007 3:19 pm 
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Joined: Thu Sep 22, 2005 10:29 am
Posts: 285
Location: Almassera/Valencia/Spain/EU/Earth/Solar system/Milky Way/Local Group/Virgo Supercluster
Maybe if I tell you that you didn't post the line

Code:
<hibernate-mapping package="mytest">


you will understand the joke.
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krasig
 Post subject:
PostPosted: Thu May 31, 2007 3:29 pm 
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Joined: Fri Feb 10, 2006 8:33 am
Posts: 32
Muhhahaha hahaha.
Ok.I will tell you more details obout the problem
( please excuse me for bad language)

I have 2 tables
Scheme{
someColumn1 ..
someColun2 ...
.
code VARCHAR,
id_version INT,
.
}

Schem_Unit{
SomeColumn...
..
..
code VARCHAR,
id_scheme INT,
...
..}

and
SCHEME.CODE = SCHEME_UNIT.CODE and
SCHEME.ID_VERSION=SCHEME_UNIT.ID_SCHEME

this is very simple situacion in SQL life but may be in HIBERNATE this is advaced ?????

So. The only way that I find is to create <properirs group.

Id we comment all <set> sectio there is not proble. that mean that


<class name="mytest.SchemeItem" table="scheme" optimistic-lock="none"> is not the desision.

Regards.
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pepelnm
 Post subject:
PostPosted: Thu May 31, 2007 4:38 pm 
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Post your full map file.
Between [code] [/code] tags please
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krasig
 Post subject:
PostPosted: Thu May 31, 2007 4:58 pm 
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Joined: Fri Feb 10, 2006 8:33 am
Posts: 32
Code:
<hibernate-mapping schema="informix" package="mytest">
  <class name="mytest.SchemeItem" table="scheme" optimistic-lock="none">
    <id name="id" type="integer" unsaved-value="null" column="id">
      <generator class="native"/>
    </id>
    <property name="numberItem" type="integer" column="number_item" not-null="true"/>
    <property name="text" type="string" column="text" length="255" not-null="true"/>
    <property name="levelNumber" type="integer" column="level_number" not-null="true"/>
    <property name="parrentCode" type="integer" column="parrent_code"/>
    <property name="indChild" type="integer" column="ind_child" not-null="true"/>
   
    <properties name="aa21" update="true" insert="true" >
      <property name="code" type="string" column="code" not-null="true"/>
      <property name="idVersion" type="integer" column="id_version" not-null="true" update="false" insert="false"/>
    </properties>
     <bag name="measureUnits">
      <key property-ref="aa21">
        <column name="code"/>
        <column name="id_scheme"/>
      </key>
      <one-to-many  class="SchemeItemUnits"/>
    </bag>
   
  </class>


and
Code:
  <class name="SchemeItemUnits" table="scheme_units" optimistic-lock="none">
    <id name="id" type="integer" unsaved-value="null">
      <column name="id" not-null="true" unique="true" index="191_382"/>
      <generator class="native"/>
    </id>
   
    <property name="code" type="string" column="code" length="50" not-null="true"/>
    <property name="type" type="short" column="type" not-null="true"/>
    <property name="unit" type="string" column="unit" length="50" not-null="true"/>
    <property name="idScheme" type="integer" column="id_scheme" not-null="true"/>
  </class>
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pepelnm
 Post subject:
PostPosted: Thu May 31, 2007 5:48 pm 
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Posts: 285
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Well, at first sight it looks fine.
What about the POJOS?
(mytest.SchemeItem and mytest.SchemeItemUnits)
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krasig
 Post subject:
PostPosted: Fri Jun 01, 2007 1:55 am 
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Joined: Fri Feb 10, 2006 8:33 am
Posts: 32
Code:
public class SchemeItem {

   
   private Integer   id;
   private Integer   numberItem;
   private String   code;
   private String   text;
   private Integer   levelNumber;
   private Integer   parrentCode;
   private Integer   indChild;
   private Integer   idVersion;
   
   private Set<SchemeItemUnits> measureUnits;

   
   
   /** auto generated
    * @es_generated
    */
   public SchemeItem() {
      super();
   }

    .......
     For all I have Getters and Setters
}



Code:
public class SchemeItemUnits {

   private Integer   id;
   private String   code;
   private Short   type;
   private String   unit;
   private Integer   idScheme;

   public SchemeItemUnits() {
      super();
   }
   ..........
       .......
     For all I have Getters and Setters   
}
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krasig
 Post subject:
PostPosted: Fri Jun 01, 2007 6:23 am 
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Joined: Fri Feb 10, 2006 8:33 am
Posts: 32
The solution is:

The POJO must implements Serializable
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pepelnm
 Post subject:
PostPosted: Fri Jun 01, 2007 4:42 pm 
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Joined: Thu Sep 22, 2005 10:29 am
Posts: 285
Location: Almassera/Valencia/Spain/EU/Earth/Solar system/Milky Way/Local Group/Virgo Supercluster
Why?
It has to be a bug.
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