departmentservice.java

HR系统模拟企业对内部职员的管理

/*$Id: DepartmentService.java,v 1.1 2008/07/15 03:38:23 liqi Exp $
 *--------------------------------------
 * Apusic (Kingdee Middleware)
 *---------------------------------------
 * Copyright By Apusic ,All right Reserved
 * author   date   comment
 * chenhongxin  2008-4-14  Created
*/
package org.operamasks.example.ejb.hr.service;

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.persistence.Query;
import java.util.*;

import org.operamasks.example.ejb.hr.entity.Department;

/** 
 * @generated
 */
@Stateless
@SuppressWarnings("unchecked")
public class DepartmentService implements IDepartmentService {
	/** 
	 * @generated default persist manager
	 */
	@PersistenceContext
	private EntityManager _innerDao;

	/** 
	 * @generated default persist method 
	 */
	@TransactionAttribute(value = TransactionAttributeType.REQUIRED)
	public void createDepartment(Department vo) {
		_innerDao.persist(vo);
	}

	/** 
	 * @generated default persist method
	 */
	@TransactionAttribute(value = TransactionAttributeType.REQUIRED)
	public void modifyDepartment(Department vo) {
		_innerDao.merge(vo);
	}

	/** 
	 * @generated default remove method
	 */
	@TransactionAttribute(value = TransactionAttributeType.REQUIRED)
	public void removeDepartment(Department vo) {
		Department managed = _innerDao.merge(vo);
		_innerDao.remove(managed);
	}

	/** 
	 * @generated default query method
	 */
	@TransactionAttribute(value = TransactionAttributeType.REQUIRED)
	public List<Department> listDepartment() {
		Query q = _innerDao.createQuery("SELECT o FROM Department o ");
		return q.getResultList();
	}

	@TransactionAttribute(value = TransactionAttributeType.REQUIRED)
	public Department findById(String id) {
		Query q = _innerDao
				.createQuery("SELECT o FROM Department o where o.id='" + id
						+ "'");
		return (Department) q.getSingleResult();
	}
}