Dorado 9 : 14.3.1.2 准备后台服务

package com.bstek.dorado.sample.standardlesson.service;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.Resource;
import org.springframework.stereotype.Component;
import com.bstek.dorado.annotation.DataProvider;
import com.bstek.dorado.sample.standardlesson.dao.SlDeptDao;
import com.bstek.dorado.sample.standardlesson.entity.SlDept;
@Component
public class DeptService {
    @Resource
    private SlDeptDao slDeptDao;
    
      @DataProvider
    public Collection<SlDept> getTopDept(){
        return slDeptDao.find("from SlDept where parentId is NULL");
    }
    
    @DataProvider
    public Collection<SlDept> getDeptByParentId(Long deptId){
		if(null != deptId){
		    String hql = "from SlDept where parentId = :deptId";
		    Map param = new HashMap();
		    param.put("deptId", deptId);
		    return slDeptDao.find(hql, param);
		}else{
		    return null;
		}
    }
}