Examples of javax.persistence.EntityNotFoundException

javax.persistence.EntityNotFoundException
Thrown by the persistence provider when an entity reference obtained by EntityManager.getReference(Class,Object) is accessed but the entity does not exist. Also thrown when EntityManager.refresh(Object) is called and the object no longer exists in the database. The current transaction, if one is active, will be marked for rollback. @author Gavin King

        assertEntity(entityClass);


        AbstractClassMetaData acmd = om.getMetaDataManager().getMetaDataForClass(entityClass, om.getClassLoaderResolver());
        if (acmd == null)
        {
            throw new EntityNotFoundException();
        }
        Object pc;
        try
        {
            if (acmd.getObjectidClass().equals(primaryKey.getClass().getName()))

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        {
            throw new IllegalArgumentException(LOCALISER.msg("EM.EntityIsNotManaged", StringUtils.toJVMIDString(entity)));
        }
        if (!om.exists(entity))
        {
            throw new EntityNotFoundException(LOCALISER.msg("EM.EntityNotInDatastore", StringUtils.toJVMIDString(entity)));
        }


        try
        {
            om.refreshObject(entity);

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                return new PersistenceException(jdoe.getMessage(), jdoe);
            }
        }
        else if (jdoe instanceof JDOObjectNotFoundException)
        {
            return new EntityNotFoundException(jdoe.getMessage());
        }
        else if (jdoe instanceof JDOUserException)
        {
            // JPA doesnt have "user" exceptions so just give a PersistenceException
            if (jdoe.getNestedExceptions() != null)

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                return new PersistenceException(jpe.getMessage(), jpe);
            }
        }
        else if (jpe instanceof JPOXObjectNotFoundException)
        {
            return new EntityNotFoundException(jpe.getMessage());
        }
        else if (jpe instanceof JPOXUserException)
        {
            // JPA doesnt have "user" exceptions so just give a PersistenceException
            if (jpe.getNestedExceptions() != null)

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      // XXX: only needs to get a reference.


      reference = (T) load(entityClass, primaryKey, false);


      if (reference == null)
        throw new EntityNotFoundException(L.l("entity with primary key {0} not found in getReference()", primaryKey));


      /*
        if (! (entityClass.isAssignableFrom(Entity.class)))
          throw new IllegalArgumentException(L.l("getReference() operation can only be applied to an entity class"));
      */

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        T entity = this.entityManager.find(this.persistentClass, id);


        if (entity == null) {
            String msg = "Uh oh, '" + this.persistentClass + "' object with id '" + id + "' not found...";
            log.warn(msg);
            throw new EntityNotFoundException(msg);
        }


        return entity;
    }

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    else if ( e instanceof org.hibernate.QueryTimeoutException ) {
      javax.persistence.QueryTimeoutException converted = new javax.persistence.QueryTimeoutException(e.getMessage(), e);
      throwPersistenceException( converted );
    }
    else if ( e instanceof ObjectNotFoundException ) {
      throwPersistenceException( new EntityNotFoundException( e.getMessage() ) );
    }
    else if ( e instanceof org.hibernate.NonUniqueResultException ) {
      throwPersistenceException( new NonUniqueResultException( e.getMessage() ) );
    }
    else if ( e instanceof UnresolvableObjectException ) {
      throwPersistenceException( new EntityNotFoundException( e.getMessage() ) );
    }
    else if ( e instanceof QueryException ) {
      throw new IllegalArgumentException( e );
    }
    else if ( e instanceof TransientObjectException ) {

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      return;
    }


    if (lazyLoadFailure) {
      // failed when batch lazy loaded by another bean in the batch
      throw new EntityNotFoundException("Bean has been deleted - lazy loading failed");
    }


    if (lazyLoadProperty == -1) {


      lazyLoadProperty = loadProperty;


      if (nodeUsageCollector != null) {
        nodeUsageCollector.setLoadProperty(getProperty(lazyLoadProperty));
      }


      loader.loadBean(this);


      if (lazyLoadFailure) {
        // failed when lazy loading this bean
        throw new EntityNotFoundException("Bean has been deleted - lazy loading failed");
      }


      // bean should be loaded and intercepting now. setLoaded() has
      // been called by the lazy loading mechanism
    }

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    }


    Object dbBean = query.findUnique();
    if (dbBean == null) {
      String msg = "Bean not found during lazy load or refresh." + " id[" + id + "] type[" + desc.getBeanType() + "]";
      throw new EntityNotFoundException(msg);
    }


  }

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  private static EntityNotFoundDelegate ejb3EntityNotFoundDelegate = new Ejb3EntityNotFoundDelegate();
  private static Configuration DEFAULT_CONFIGURATION = new AnnotationConfiguration();


  private static class Ejb3EntityNotFoundDelegate implements EntityNotFoundDelegate, Serializable {
    public void handleEntityNotFound(String entityName, Serializable id) {
      throw new EntityNotFoundException("Unable to find " + entityName  + " with id " + id);
    }

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