schoolserviceimpl.java.svn-base

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

/*
 * 创建日期 2005-4-12
 */
package biz.bluesky.pts.service.impl;

import java.util.List;

import biz.bluesky.pts.model.TSchool;
import biz.bluesky.pts.service.ISchoolService;
import biz.bluesky.pts.service.dao.ISchoolDAO;

import biz.bluesky.pts.util.ErrorCode;

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

public class SchoolServiceImpl implements ISchoolService {
    
    private ISchoolDAO schoolDAO;

    public void setSchoolDAO(ISchoolDAO schoolDAO) {
        this.schoolDAO = schoolDAO;
    }

    public ISchoolDAO getSchoolDAO() {
        return this.schoolDAO;
    }

    //查询所有的学校
    public List findSchools() {
        return schoolDAO.findSchools();
    }

    //根据学校名称模糊查询学校
    public List findSchools(String schoolName) {
        return schoolDAO.findSchhols(schoolName);
    }

    //根据学校编号查询学校
    public TSchool findSchool(int schoolId) {
        TSchool school = null;
        
        try {
            school = schoolDAO.findSchool(schoolId);
        }
        catch(ObjectRetrievalFailureException excp) {
            
        }
        return school;
    }

    //根据学校名称查询学校
    public TSchool findSchool(String schoolName) {
        return schoolDAO.findSchool(schoolName);
    }

    //新增学校
    public int saveSchool(TSchool school) {
        if((school == null)||(school.getName() == "")) {
            return ErrorCode.ERR_SCHOOL_EMPTY;
        }
        
        try {
            schoolDAO.saveSchool(school);
        }
        catch(ObjectRetrievalFailureException excp) {
            return ErrorCode.ERR_SCHOOL_REPEAT;
        }
        catch(DataAccessException excp) {
            return ErrorCode.ERR_UNKNOW;
        }
        
        return ErrorCode.ERR_UNDISCOVERED;
    }

    //删除学校
    public int removeSchool(int schoolId) {
        try {
            schoolDAO.removeSchool(schoolId);
        }
        catch(ObjectRetrievalFailureException excp) {
            return ErrorCode.ERR_SCHOOL_NOT_FIND;
        }
        catch(DataAccessException excp) {
            return ErrorCode.ERR_UNKNOW;
        }
        
        return ErrorCode.ERR_UNDISCOVERED;
    }

}