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.Presystemstrategy;

/**
 * Facade for entity Presystemstrategy.
 * 
 * @see com.sinosoft.message.po.Presystemstrategy
 * @author MyEclipse Persistence Tools
 */
@Stateless
public class PresystemstrategyFacade implements PresystemstrategyFacadeLocal,
		PresystemstrategyFacadeRemote {
	// property constants
	public static final String APP_STRATEGY_NAME = "appStrategyName";
	public static final String APP_STRATEGY_DEC = "appStrategyDec";
	public static final String SENDTYPE = "sendtype";
	public static final String FUNMODELID = "funmodelid";

	@PersistenceContext
	private EntityManager entityManager;

	/**
	 * Perform an initial save of a previously unsaved Presystemstrategy entity.
	 * All subsequent persist actions of this entity should use the #update()
	 * method.
	 * 
	 * @param entity
	 *            Presystemstrategy entity to persist
	 * @throws RuntimeException
	 *             when the operation fails
	 */
	public void save(Presystemstrategy entity) {
		LogUtil.log("saving Presystemstrategy 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 Presystemstrategy entity.
	 * 
	 * @param entity
	 *            Presystemstrategy entity to delete
	 * @throws RuntimeException
	 *             when the operation fails
	 */
	public void delete(Presystemstrategy entity) {
		LogUtil.log("deleting Presystemstrategy instance", Level.INFO, null);
		try {
			entity = entityManager.getReference(Presystemstrategy.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 Presystemstrategy entity and return it or a
	 * copy of it to the sender. A copy of the Presystemstrategy entity
	 * parameter is returned when the JPA persistence mechanism has not
	 * previously been tracking the updated entity.
	 * 
	 * @param entity
	 *            Presystemstrategy entity to update
	 * @return Presystemstrategy the persisted Presystemstrategy entity
	 *         instance, may not be the same
	 * @throws RuntimeException
	 *             if the operation fails
	 */
	public Presystemstrategy update(Presystemstrategy entity) {
		LogUtil.log("updating Presystemstrategy instance", Level.INFO, null);
		try {
			Presystemstrategy 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 Presystemstrategy findById(String id) {
		LogUtil.log("finding Presystemstrategy instance with id: " + id,
				Level.INFO, null);
		try {
			Presystemstrategy instance = entityManager.find(
					Presystemstrategy.class, id);
			return instance;
		} catch (RuntimeException re) {
			LogUtil.log("find failed", Level.SEVERE, re);
			throw re;
		}
	}

	/**
	 * Find all Presystemstrategy entities with a specific property value.
	 * 
	 * @param propertyName
	 *            the name of the Presystemstrategy 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<Presystemstrategy> found by query
	 */
	@SuppressWarnings("unchecked")
	public List<Presystemstrategy> findByProperty(String propertyName,
			final Object value, final int... rowStartIdxAndCount) {
		LogUtil.log("finding Presystemstrategy instance with property: "
				+ propertyName + ", value: " + value, Level.INFO, null);
		try {
			final String queryString = "select model from Presystemstrategy 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<Presystemstrategy> findByAppStrategyName(
			Object appStrategyName, int... rowStartIdxAndCount) {
		return findByProperty(APP_STRATEGY_NAME, appStrategyName,
				rowStartIdxAndCount);
	}

	public List<Presystemstrategy> findByAppStrategyDec(Object appStrategyDec,
			int... rowStartIdxAndCount) {
		return findByProperty(APP_STRATEGY_DEC, appStrategyDec,
				rowStartIdxAndCount);
	}

	public List<Presystemstrategy> findBySendtype(Object sendtype,
			int... rowStartIdxAndCount) {
		return findByProperty(SENDTYPE, sendtype, rowStartIdxAndCount);
	}

	public List<Presystemstrategy> findByFunmodelid(Object funmodelid,
			int... rowStartIdxAndCount) {
		return findByProperty(FUNMODELID, funmodelid, rowStartIdxAndCount);
	}

	/**
	 * Find all Presystemstrategy 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<Presystemstrategy> all Presystemstrategy entities
	 */
	@SuppressWarnings("unchecked")
	public List<Presystemstrategy> findAll(final int... rowStartIdxAndCount) {
		LogUtil
				.log("finding all Presystemstrategy instances", Level.INFO,
						null);
		try {
			final String queryString = "select model from Presystemstrategy 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;
		}
	}

}