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  1. OpenJPA
  2. OPENJPA-792

An entity persist may fail when @MappedSupercalss is specified.


    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.0-M2
    • Fix Version/s: 1.3.0, 2.0.0-M2
    • Component/s: jpa
    • Labels:


      When @MappedSuperClass annotation is specified and if we try to persist the same key of the subclasses which are entities of the Mappedsuperclass , Persist fails which is not the expected behavior.

      import java.util.Date;

      import javax.persistence.Id;
      import javax.persistence.Column;

      public class Party {

      protected Long PartyId;
      protected String Status;
      protected String ArchiveStatus;
      protected Date CreateDate;

      public Long getPartyId()

      { return this.PartyId; }

      public void setPartyId(Long id)

      { this.PartyId = id; }

      public void setArchiveStatus(String s)

      { this.ArchiveStatus = s; }

      public void setStatus(String s)

      { this.Status = s; }

      public String getStatus()

      { return this.Status; }

      public String getArchiveStatus()

      { return this.ArchiveStatus; }

      public void setCreateDate(Date d)

      { this.CreateDate = d; }

      public Date getCreateDate()

      { return this.CreateDate; }


      import java.util.List;

      import javax.persistence.DiscriminatorValue;
      import javax.persistence.Entity;
      import javax.persistence.Inheritance;
      import javax.persistence.OneToMany;
      import javax.persistence.Table;
      import javax.persistence.FetchType;
      import javax.persistence.CascadeType;
      import javax.persistence.InheritanceType;

      import org.apache.openjpa.persistence.jdbc.DiscriminatorStrategy;

      @Table(name = "Site")
      public class Site extends Party implements java.io.Serializable {

      private static final long serialVersionUID = 1L;

      private String SiteName;
      private String SiteDescription;
      /* private List<Store> stores;

      @OneToMany(mappedBy="site", cascade=CascadeType.ALL, fetch=FetchType.LAZY,
      public List<Store> getStores()

      { return stores; }

      public void setStores(List<Store> storeList)

      { this.stores = storeList; }

      public void setSiteName(String s)

      { this.SiteName = s; }

      public String getSiteName()

      { return this.SiteName; }

      public void setSiteDescription(String s)

      { this.SiteDescription = s; }

      public String getSiteDescription()

      { return this.SiteDescription; }


      import javax.persistence.CascadeType;
      import javax.persistence.Entity;
      import javax.persistence.FetchType;
      import javax.persistence.Inheritance;
      import javax.persistence.InheritanceType;
      import javax.persistence.JoinColumn;
      import javax.persistence.ManyToOne;
      import javax.persistence.Table;

      @Table(name = "Store")
      public class Store extends Party implements java.io.Serializable {

      private static final long serialVersionUID = 1L;
      private String StoreName;
      private String StoreDescription;

      private Site site;
      private Long SiteId;

      @ManyToOne( fetch = FetchType.LAZY, cascade = CascadeType.ALL,
      @JoinColumn(name = "Store.SiteId",
      referencedColumnName="site.PartyId", nullable = false, insertable = true,
      updatable = true)

      public Site getSite()

      { return site; }

      public void setSite(Site s)

      { this.site = s; }

      public void setStoreName(String s)

      { this.StoreName = s; }

      public String getStoreName()

      { return this.StoreName; }

      public void setStoreDescription(String s)

      { this.StoreDescription = s; }

      public String getStoreDescription()

      { return this.StoreDescription; }

      public void setSiteId(Long id)

      { this.SiteId = id; }

      public Long getSiteId()

      { return this.SiteId; }


      TestCase follows:

      import java.util.ArrayList;
      import java.util.Date;
      import java.util.List;

      import javax.persistence.EntityManager;
      import javax.persistence.EntityManagerFactory;
      import javax.persistence.Persistence;

      import lazy_fetch.bean.Site;
      import lazy_fetch.bean.Store;

      public class TestLazyFetch {

      public static EntityManagerFactory emf = null;
      public static Long pkey = new Long (1502);

      public static void main(String[] args)

      { emf = Persistence.createEntityManagerFactory("LazyFetch"); createSite(); System.out.println("Done creating Site"); createStore(); System.out.println("Done creating Store"); // getStoreWithSite(); }

      public static void getStoreWithSite()

      { EntityManager em = emf.createEntityManager(); Store store = em.find(Store.class, pkey); System.out.println("store =" + store); // Site site = store.getSite(); // System.out.println("site =" + site); }

      public static void createSite()

      { EntityManager em = emf.createEntityManager(); em.getTransaction().begin(); Site s = new Site(); s.setPartyId(pkey); s.setSiteName("San Jose"); s.setSiteDescription("San Jose site"); s.setStatus("2"); s.setArchiveStatus("2"); s.setCreateDate(new Date()); em.persist(s); em.getTransaction().commit(); em.close(); }

      public static void createStore()

      { EntityManager em = emf.createEntityManager(); em.getTransaction().begin(); Site site = em.find(Site.class, pkey); Store store = new Store(); store.setPartyId(pkey); store.setStoreDescription("storeDescription"); store.setStoreName("storeName"); store.setStatus("1"); store.setArchiveStatus("1"); store.setCreateDate(new Date()); store.setSiteId(site.getPartyId()); store.setSite(site); // List<Store> stores = new ArrayList<Store>(); // stores.add(store); // site.setStores(stores); em.persist(store); em.getTransaction().commit(); }


      47 LazyFetch INFO [main] openjpa.Runtime - Starting OpenJPA 2.0.0-SNAPSHOT
      125 LazyFetch INFO [main] openjpa.jdbc.JDBC - Using dictionary class "org.apache.openjpa.jdbc.sql.DB2Dictionary".
      Exception in thread "main" <openjpa-2.0.0-SNAPSHOT-runknown nonfatal store error> org.apache.openjpa.persistence.EntityExistsException: An object of type "lazy_fetch.bean.Store" with oid "lazy_fetch.bean.Party-1502" already exists in this context; another cannot be persisted.
      FailedObject: lazy_fetch.bean.Store@9c609c6
      at org.apache.openjpa.kernel.BrokerImpl.checkForDuplicateId(BrokerImpl.java:4756)
      at org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2445)
      at org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2281)
      at org.apache.openjpa.kernel.DelegatingBroker.persist(DelegatingBroker.java:1021)
      at org.apache.openjpa.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:645)
      at lazy_fetch.tests.TestLazyFetch.createStore(TestLazyFetch.java:77)
      at lazy_fetch.tests.TestLazyFetch.main(TestLazyFetch.java:25)




            • Assignee:
              turagasandy Sandhya
            • Votes:
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              • Created: