package com.sinosoft.message.ejb;

import java.util.List;
import java.util.logging.Level;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

import com.sinosoft.message.po.Historymessage;

/**
 * Facade for entity Historymessage.
 * 
 * @see com.sinosoft.message.po.Historymessage
 * @author MyEclipse Persistence Tools
 */
@Stateless
public class HistorymessageFacade implements HistorymessageFacadeLocal,
		HistorymessageFacadeRemote {
	// property constants
	public static final String CREATE_DATE = "createDate";
	public static final String SENDER = "sender";
	public static final String RECEIVER = "receiver";
	public static final String SEND_DEL_FLAG = "sendDelFlag";
	public static final String RECEVIVE_DEL_FLAG = "receviveDelFlag";
	public static final String STATUS = "status";
	public static final String SENDER_NAME = "senderName";
	public static final String RECEIVER_NAME = "receiverName";
	public static final String SEND_TYPE = "sendType";
	public static final String RECEIVE_TYPE = "receiveType";

	@PersistenceContext
	private EntityManager entityManager;

	/**
	 * Perform an initial save of a previously unsaved Historymessage entity.
	 * All subsequent persist actions of this entity should use the #update()
	 * method.
	 * 
	 * @param entity
	 *            Historymessage entity to persist
	 * @throws RuntimeException
	 *             when the operation fails
	 */
	public void save(Historymessage entity) {
		LogUtil.log("saving Historymessage instance", Level.INFO, null);
		try {
			entityManager.persist(entity);
			LogUtil.log("save successful", Level.INFO, null);
		} catch (RuntimeException re) {
			LogUtil.log("save failed", Level.SEVERE, re);
			throw re;
		}
	}

	/**
	 * Delete a persistent Historymessage entity.
	 * 
	 * @param entity
	 *            Historymessage entity to delete
	 * @throws RuntimeException
	 *             when the operation fails
	 */
	public void delete(Historymessage entity) {
		LogUtil.log("deleting Historymessage instance", Level.INFO, null);
		try {
			entity = entityManager.getReference(Historymessage.class, entity
					.getId());
			entityManager.remove(entity);
			LogUtil.log("delete successful", Level.INFO, null);
		} catch (RuntimeException re) {
			LogUtil.log("delete failed", Level.SEVERE, re);
			throw re;
		}
	}

	/**
	 * Persist a previously saved Historymessage entity and return it or a copy
	 * of it to the sender. A copy of the Historymessage entity parameter is
	 * returned when the JPA persistence mechanism has not previously been
	 * tracking the updated entity.
	 * 
	 * @param entity
	 *            Historymessage entity to update
	 * @return Historymessage the persisted Historymessage entity instance, may
	 *         not be the same
	 * @throws RuntimeException
	 *             if the operation fails
	 */
	public Historymessage update(Historymessage entity) {
		LogUtil.log("updating Historymessage instance", Level.INFO, null);
		try {
			Historymessage result = entityManager.merge(entity);
			LogUtil.log("update successful", Level.INFO, null);
			return result;
		} catch (RuntimeException re) {
			LogUtil.log("update failed", Level.SEVERE, re);
			throw re;
		}
	}

	public Historymessage findById(String id) {
		LogUtil.log("finding Historymessage instance with id: " + id,
				Level.INFO, null);
		try {
			Historymessage instance = entityManager.find(Historymessage.class,
					id);
			return instance;
		} catch (RuntimeException re) {
			LogUtil.log("find failed", Level.SEVERE, re);
			throw re;
		}
	}

	/**
	 * Find all Historymessage entities with a specific property value.
	 * 
	 * @param propertyName
	 *            the name of the Historymessage property to query
	 * @param value
	 *            the property value to match
	 * @param rowStartIdxAndCount
	 *            Optional int varargs. rowStartIdxAndCount[0] specifies the the
	 *            row index in the query result-set to begin collecting the
	 *            results. rowStartIdxAndCount[1] specifies the the maximum
	 *            number of results to return.
	 * @return List<Historymessage> found by query
	 */
	@SuppressWarnings("unchecked")
	public List<Historymessage> findByProperty(String propertyName,
			final Object value, final int... rowStartIdxAndCount) {
		LogUtil.log("finding Historymessage instance with property: "
				+ propertyName + ", value: " + value, Level.INFO, null);
		try {
			final String queryString = "select model from Historymessage model where model."
					+ propertyName + "= :propertyValue";
			Query query = entityManager.createQuery(queryString);
			query.setParameter("propertyValue", value);
			if (rowStartIdxAndCount != null && rowStartIdxAndCount.length > 0) {
				int rowStartIdx = Math.max(0, rowStartIdxAndCount[0]);
				if (rowStartIdx > 0) {
					query.setFirstResult(rowStartIdx);
				}

				if (rowStartIdxAndCount.length > 1) {
					int rowCount = Math.max(0, rowStartIdxAndCount[1]);
					if (rowCount > 0) {
						query.setMaxResults(rowCount);
					}
				}
			}
			return query.getResultList();
		} catch (RuntimeException re) {
			LogUtil.log("find by property name failed", Level.SEVERE, re);
			throw re;
		}
	}

	public List<Historymessage> findByCreateDate(Object createDate,
			int... rowStartIdxAndCount) {
		return findByProperty(CREATE_DATE, createDate, rowStartIdxAndCount);
	}

	public List<Historymessage> findBySender(Object sender,
			int... rowStartIdxAndCount) {
		return findByProperty(SENDER, sender, rowStartIdxAndCount);
	}

	public List<Historymessage> findByReceiver(Object receiver,
			int... rowStartIdxAndCount) {
		return findByProperty(RECEIVER, receiver, rowStartIdxAndCount);
	}

	public List<Historymessage> findBySendDelFlag(Object sendDelFlag,
			int... rowStartIdxAndCount) {
		return findByProperty(SEND_DEL_FLAG, sendDelFlag, rowStartIdxAndCount);
	}

	public List<Historymessage> findByReceviveDelFlag(Object receviveDelFlag,
			int... rowStartIdxAndCount) {
		return findByProperty(RECEVIVE_DEL_FLAG, receviveDelFlag,
				rowStartIdxAndCount);
	}

	public List<Historymessage> findByStatus(Object status,
			int... rowStartIdxAndCount) {
		return findByProperty(STATUS, status, rowStartIdxAndCount);
	}

	public List<Historymessage> findBySenderName(Object senderName,
			int... rowStartIdxAndCount) {
		return findByProperty(SENDER_NAME, senderName, rowStartIdxAndCount);
	}

	public List<Historymessage> findByReceiverName(Object receiverName,
			int... rowStartIdxAndCount) {
		return findByProperty(RECEIVER_NAME, receiverName, rowStartIdxAndCount);
	}

	public List<Historymessage> findBySendType(Object sendType,
			int... rowStartIdxAndCount) {
		return findByProperty(SEND_TYPE, sendType, rowStartIdxAndCount);
	}

	public List<Historymessage> findByReceiveType(Object receiveType,
			int... rowStartIdxAndCount) {
		return findByProperty(RECEIVE_TYPE, receiveType, rowStartIdxAndCount);
	}

	/**
	 * Find all Historymessage entities.
	 * 
	 * @param rowStartIdxAndCount
	 *            Optional int varargs. rowStartIdxAndCount[0] specifies the the
	 *            row index in the query result-set to begin collecting the
	 *            results. rowStartIdxAndCount[1] specifies the the maximum
	 *            count of results to return.
	 * @return List<Historymessage> all Historymessage entities
	 */
	@SuppressWarnings("unchecked")
	public List<Historymessage> findAll(final int... rowStartIdxAndCount) {
		LogUtil.log("finding all Historymessage instances", Level.INFO, null);
		try {
			final String queryString = "select model from Historymessage model";
			Query query = entityManager.createQuery(queryString);
			if (rowStartIdxAndCount != null && rowStartIdxAndCount.length > 0) {
				int rowStartIdx = Math.max(0, rowStartIdxAndCount[0]);
				if (rowStartIdx > 0) {
					query.setFirstResult(rowStartIdx);
				}

				if (rowStartIdxAndCount.length > 1) {
					int rowCount = Math.max(0, rowStartIdxAndCount[1]);
					if (rowCount > 0) {
						query.setMaxResults(rowCount);
					}
				}
			}
			return query.getResultList();
		} catch (RuntimeException re) {
			LogUtil.log("find all failed", Level.SEVERE, re);
			throw re;
		}
	}

}