remarkserviceimpl.java

菲律宾的一个大学的图书管理系统 spring+hibernate+velocity

/*
 * 创建日期 2005-5-16
 */
package biz.bluesky.pts.service.impl;

import java.util.List;

import org.springframework.dao.DataAccessException;
import org.springframework.orm.ObjectRetrievalFailureException;

import biz.bluesky.pts.model.TRemark;
import biz.bluesky.pts.model.TSchool;
import biz.bluesky.pts.service.IRemarkService;
import biz.bluesky.pts.service.dao.IRemarkDAO;
import biz.bluesky.pts.util.ErrorCode;


public class RemarkServiceImpl implements IRemarkService {
	private IRemarkDAO remarkDAO;
	
	
	
	public IRemarkDAO getRemarkDAO() {
		return this.remarkDAO;
	}
	public void setRemarkDAO(IRemarkDAO remarkDAO) {
		this.remarkDAO = remarkDAO;
	}
	
	//新增评语
	public int saveRemark(TRemark remark) {
		if(remark == null) {
			return ErrorCode.ERR_REMARK_EMPTY;
		}
		try {
			remarkDAO.saveRemark(remark);
		} catch(ObjectRetrievalFailureException excp) {
            return ErrorCode.ERR_REMARK_REPEAT;
        }
        catch(DataAccessException excp) {
            return ErrorCode.ERR_UNKNOW;
        }
        
        return ErrorCode.ERR_UNDISCOVERED;
	}
	
	//删除评语
	public int removeRemark(int remarkId) {
		try {
			remarkDAO.removeRemark(remarkId);
		} catch(ObjectRetrievalFailureException excp) {
            return ErrorCode.ERR_REMARK_NOT_FIND;
        }
        catch(DataAccessException excp) {
            return ErrorCode.ERR_UNKNOW;
        }
        
        return ErrorCode.ERR_UNDISCOVERED;
	} 
	
	//根据评语编号查询评语
	public TRemark findRemark(int remarkId) {
		TRemark remark = null;
		try {
			remark = remarkDAO.findRemark(remarkId);
		} catch(ObjectRetrievalFailureException excp) {
            
        }
        return remark;
		
	} 
	
	//根据学生编号查询评语
	public List findRemarks(int studentId) {		
		return remarkDAO.findRemarks(studentId);
	}

}