An entity persist may fail when @MappedSupercalss is specified.
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Key: OPENJPA-792
URL: https://issues.apache.org/jira/browse/OPENJPA-792
Project: OpenJPA
Issue Type: Bug
Reporter: Sandhya
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;
@javax.persistence.MappedSuperclass
public class Party {
protected Long PartyId;
protected String Status;
protected String ArchiveStatus;
protected Date CreateDate;
@Id
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;
}
@Column
public String getStatus() {
return this.Status;
}
@Column
public String getArchiveStatus() {
return this.ArchiveStatus;
}
public void setCreateDate(Date d) {
this.CreateDate = d;
}
@Column
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;
@Entity
@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,
targetEntity=Store.class)
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;
@Entity
@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,
targetEntity=Site.class)
@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: [EMAIL PROTECTED]
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)
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