1 Reply Latest reply on May 27, 2010 4:00 AM by Adam Warski

    hibernate 3.5.1 Envers retrieve revisions produces PropertyNotFoundException

    Hannes Havel Newbie
      Hi all,

       

      On retrieve all revisions of a  entity with a composite-id
      the function AuditReaderImpl.find  produces the following error:
      =====================================================================
      11:51:34,825  ERROR          http-8080-2 HibernateVersionDAOUtil:52 - ::getVersions:  error loading:  ContentData
      org.hibernate.envers.exception.AuditException:  org.hibernate.PropertyNotFoundException: Could not find a setter for  property contentid in class java.lang.Object
      at  org.hibernate.envers.entities.mapper.id.EmbeddedIdMapper.mapToEntityFromMap(EmbeddedIdMapper.java:82)
      at  org.hibernate.envers.entities.EntityInstantiator.createInstanceFromVersionsEntity(EntityInstantiator.java:95)
      at  org.hibernate.envers.entities.EntityInstantiator.addInstancesFromVersionsEntities(EntityInstantiator.java:103)
      at  org.hibernate.envers.query.impl.EntitiesAtRevisionQuery.list(EntitiesAtRevisionQuery.java:90)
      at  org.hibernate.envers.query.impl.AbstractAuditQuery.getSingleResult(AbstractAuditQuery.java:105)
      at  org.hibernate.envers.reader.AuditReaderImpl.find(AuditReaderImpl.java:106)
      ..
      ..
      ..
      at  java.lang.Thread.run(Thread.java:619)
      Caused by:  org.hibernate.PropertyNotFoundException: Could not find a setter for  property contentid in class java.lang.Object
      at  org.hibernate.property.BasicPropertyAccessor.createSetter(BasicPropertyAccessor.java:262)
      at  org.hibernate.property.BasicPropertyAccessor.getSetter(BasicPropertyAccessor.java:255)
      at  org.hibernate.envers.tools.reflection.ReflectionTools.getSetter(ReflectionTools.java:85)
      at  org.hibernate.envers.tools.reflection.ReflectionTools.getSetter(ReflectionTools.java:78)
      at  org.hibernate.envers.entities.mapper.id.SingleIdMapper.mapToEntityFromMap(SingleIdMapper.java:64)
      at  org.hibernate.envers.entities.mapper.id.EmbeddedIdMapper.mapToEntityFromMap(EmbeddedIdMapper.java:79)
      ... 29 more
      =====================================================================

       

      The  reportetd error is correct, becouse in the class ContentData no setter  for a field "contentid " exists.

       

      Insted of set the fields  directly in the entry, a primary key class ContentDataPK should be  instanciated and in that the
      primary key fields should be set.

       

       

      below  you see the access function, entity class "ContentData", primary key  class "ContentDataPK" and the hibernate configuration.

       

      I use hibernate 3.5.1.

       

       


      Question:  is it not possible to retrieve the revisions for a entity with a  composite-id ?

       


      Please suggest how can i proceed.

       

      Thanks  in advance.

       

      Hannes

       


      === retireve  revisions ======================================================
      public  class HibernateVersionDAOUtil {

       

      public Map<Number, ?>  getVersions(Session session, Class<?> cls, Serializable id) throws  PersistentException {

       

      log.debug("::getVersions: cls:" + cls +  " id:" + id + " session:" + session);
      Map map = new HashMap();
      Transaction tx = null;

       

      boolean opened = false;
      try  {
      tx = session.getTransaction();
      if (tx==null ||  tx.isActive()==false) {
      log.debug("starting new  transaction...");
      tx = session.beginTransaction();
      opened = true;
      }

       

      AuditReader reader =  AuditReaderFactory.get(session);
      List<Number> versions =  reader.getRevisions(cls, id);

       

      for (Number c : versions ) {
      Object obj = reader.find(cls, id, c);

       

      map.put(c,  obj);
      }

       

      if (opened) {
      log.debug("::getVersions: autocomitting new transaction...");
      tx.commit();
      }
      } catch (HibernateException e) {
      log.error("::getVersions: error loading:  "+cls.getName(),e);
      if (tx != null && tx.isActive()) {
      try {
      tx.rollback();
      } catch (HibernateException e1) {
      log.error("::getVersions: error rolling back after exception at find  "+cls.getSimpleName(),e1);
      }
      }

       

      throw  new  PersistentException("persistence", "getVersions", "hibernate  error:" + e.getLocalizedMessage(), null, e);
      }

       

      log.debug("::getVersions: result:" + map);

       

      return map;
      }
      }
      =====================================================================

       

      ====  primary key class ====================================================
      public  class ContentDataPK {
      private Integer contentid;
      private  String language;

       

      public ContentDataPK() {
      super();
      }

       

      public ContentDataPK(Integer contentid, String language) {
      this.contentid = contentid;
      this.language = language;
      }

       

      public String getLanguage() {
      return language;
      }

       

      public void setLanguage(String language) {
      this.language =  language;
      }

       

      public Integer getContentid() {
      return  contentid;
      }

       

      public void setContentid(Integer contentid) {
      this.contentid = contentid;
      }
      }
      =====================================================================

       

      ====  entity class  =================================================================
      @Audited
      public  class ContentData implements Serializable {

       

      private  ContentDataPK id;  // primary key

       

      private String title;
      private String text;

       

      public ContentData() {
      super();
      }

       

      public ContentData(Integer id, String language, String  title, String text) {
      this.id = new ContentDataPK(id, language);

       

      this.title = title;
      this.text = text;
      }

       

      public  String getTitle() {
      return title;
      }

       

      public void  setTitle(String title) {
      this.title = title;
      }

       

      public String getText() {
      return text;
      }

       

      public  void setText(String text) {
      this.text = text;
      }

       

      public ContentDataPK getId() {
      return id;
      }

       

      public  void setId(ContentDataPK id) {
      this.id = id;
      }

       

      }
      =====================================================================

       


      ===  hibernate mapping ================================================
      <?xml  version="1.0" encoding="UTF-8"?>
      <!DOCTYPE hibernate-mapping  PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"  "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
      <hibernate-mapping>
      <class name="ContentData" table="contents">

       

      <composite-id name="id">
      <key-property name="contentid" column="contentid"  type="java.lang.Integer" />
      <key-property name="language"  column="language" type="java.lang.String"/>
      </composite-id>
      <property name="title" column="title" type="java.lang.String" />
      <property name="text" column="text" type="java.lang.String" />

       

      </class>
      </hibernate-mapping>
      =====================================================================

       

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