/**
    * 
    */
   package de.tivsource.page.dao.property;
   
   import java.util.List;
   
   import javax.ejb.Stateless;
   import javax.persistence.EntityManager;
  import javax.persistence.PersistenceContext;
  import javax.persistence.Query;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  import de.tivsource.page.entity.property.Property;
  
  /**
   * @author Marc Michele
   *
   */
  @Stateless
  public class PropertyDao implements PropertyDaoLocal {
  
      /*
       * Statischer Logger der Klasse.
       */
      private static final Logger LOGGER = LogManager.getLogger(PropertyDao.class);
  
      /*
       * EntityManager der Dao Klasse.
       */
      @PersistenceContext
      private EntityManager entityManager;
  
      /* (non-Javadoc)
       * @see de.tivsource.page.dao.property.PropertyDaoLocal#save(de.tivsource.page.entity.property.Property)
       */
      @Override
      public void save(Property property) {
          LOGGER.info("save(Property property) aufgerufen");
          entityManager.persist(property);
      }
  
      /* (non-Javadoc)
       * @see de.tivsource.page.dao.property.PropertyDaoLocal#merge(de.tivsource.page.entity.property.Property)
       */
      @Override
      public void merge(Property property) {
          LOGGER.info("merge(Property property) aufgerufen");
          entityManager.merge(property);
      }
  
      /* (non-Javadoc)
       * @see de.tivsource.page.dao.property.PropertyDaoLocal#delete(de.tivsource.page.entity.property.Property)
       */
      @Override
      public void delete(Property property) {
          entityManager.remove(entityManager.find(Property.class, property.getKey()));
      }
  
      /* (non-Javadoc)
       * @see de.tivsource.page.dao.property.PropertyDaoLocal#findByKey(java.lang.String)
       */
      @Override
      public Property findByKey(String key) {
          return entityManager.find(Property.class, key);
      }
  
      /* (non-Javadoc)
       * @see de.tivsource.page.dao.property.PropertyDaoLocal#findAll(java.lang.Integer, java.lang.Integer)
       */
      @SuppressWarnings("unchecked")
      @Override
      public List<Property> findAll(Integer start, Integer max) {
          Query query = entityManager.createQuery("from Property p");
          query.setFirstResult(start);
          query.setMaxResults(max);
          return query.getResultList();
      }
  
      /* (non-Javadoc)
       * @see de.tivsource.page.dao.property.PropertyDaoLocal#findAll(java.lang.Integer, java.lang.Integer, java.lang.String, java.lang.String)
       */
      @SuppressWarnings("unchecked")
      @Override
      public List<Property> findAll(Integer start, Integer max, String field, String order) {
          String queryString = "select p from Property p order by ";
          queryString = queryString + field + " " + order;
          Query query = entityManager.createQuery(queryString);
          query.setFirstResult(start);
          query.setMaxResults(max);
          return query.getResultList();
      }
  
      /* (non-Javadoc)
       * @see de.tivsource.page.dao.property.PropertyDaoLocal#countAll()
       */
      @Override
     public Integer countAll() {
         Query query = entityManager.createQuery("Select Count(p) from Property p");
         return Integer.parseInt(query.getSingleResult().toString());
     }
 
 }// Ende class