示例#1
0
  public static String getEntityName(Class entity) {

    if (mappedName.get(entity) != null) {
      return mappedName.get(entity);
    }

    String name = null;

    Table table = (Table) entity.getAnnotation(Table.class);
    if (table != null && table.name() != null && !table.name().isEmpty()) {
      name = table.name();
    } else {
      Entity entityAnnotation = (Entity) entity.getAnnotation(Entity.class);
      if (entityAnnotation != null
          && entityAnnotation.name() != null
          && !entityAnnotation.name().isEmpty()) {
        name = entityAnnotation.name();
      } else {
        name = entity.getSimpleName();
      }
    }

    mappedName.put(entity, name);

    return name;
  }
  /**
   * Gets all the annotation info for a particular class and puts it in our annotation info cache.
   *
   * @param c
   * @return
   */
  public AnnotationInfo putAnnotationInfo(Class c) {
    {
      Entity entity = (Entity) c.getAnnotation(Entity.class);
      if (entity == null) {
        throw new PersistenceException("Class not marked as an @Entity: " + c.getName());
      }
    }
    AnnotationInfo ai = new AnnotationInfo();
    ai.setClassAnnotations(c.getAnnotations());
    ai.setMainClass(c);
    Class superClass = c;
    Class rootClass = null;
    while ((superClass = superClass.getSuperclass()) != null) {
      MappedSuperclass mappedSuperclass =
          (MappedSuperclass) superClass.getAnnotation(MappedSuperclass.class);
      Entity entity = (Entity) superClass.getAnnotation(Entity.class);
      Inheritance inheritance = (Inheritance) superClass.getAnnotation(Inheritance.class);
      if (mappedSuperclass != null || entity != null) {
        putProperties(ai, superClass);
        putMethods(ai, superClass);
        if (entity != null) {
          rootClass = superClass;
        }
        putEntityListeners(ai, superClass);
      }
    }
    if (rootClass != null) {
      ai.setRootClass(rootClass);
      DiscriminatorValue dv = (DiscriminatorValue) c.getAnnotation(DiscriminatorValue.class);
      String discriminatorValue;
      if (dv != null) {
        discriminatorValue = dv.value();
        if (discriminatorValue == null) {
          throw new PersistenceException(
              "You must specify a value= for @DiscriminatorValue on " + c.getName());
        }
      } else {
        discriminatorValue = c.getSimpleName();
      }
      ai.setDiscriminatorValue(discriminatorValue);
      discriminatorMap.put(discriminatorValue, ai);
    } else {
      ai.setRootClass(c);
    }
    putTableDeclaration(ai, c);
    putProperties(ai, c);
    putMethods(ai, c);
    if (ai.getIdMethod() == null) {
      throw new PersistenceException("No ID method specified for: " + c.getName());
    }
    putEntityListeners(ai, c);

    getAnnotationMap().put(c.getName(), ai);
    return ai;
  }
示例#3
0
  public List<E> findAll() {
    EntityManager em = getEntityManager();
    EntityTransaction tx = em.getTransaction();
    List<E> list = new ArrayList<E>();

    try {
      tx.begin();
      Query q = em.createNamedQuery(clazz.getSimpleName() + ".findAll");

      list = q.getResultList();

      tx.commit();
    } finally {
      if (tx.isActive()) {
        tx.rollback();
      }
      em.close();
    }

    return list;
  }
示例#4
0
 public <T> List<T> list(Class<T> target) {
   return (List<T>)
       entityManager.createQuery("SELECT t FROM " + target.getSimpleName() + " t").getResultList();
 }