UEP-树和表

Model Select:表格要展示的数据
Tree DataSource:树的数据源
数据源是自定义java类
实现接口：ITreeRetriever创建根节点、判断子节点、创建子节点

--数据源

package com.haiyisoft.bill.page.tree;

import java.math.BigDecimal;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import com.haiyisoft.entity.UepContract;

import com.haiyisoft.entity.UepCustomer;

import com.haiyisoft.ep.common.jpa.util.JPAUtil;

import com.haiyisoft.ep.common.model.QueryParam;

import com.haiyisoft.ep.common.model.QueryParamList;

import com.haiyisoft.ep.framework.model.ITreeRetriever;

import com.haiyisoft.ep.framework.model.TreeBean;

public class TreeSourceDP implements ITreeRetriever {

    @Override

    public TreeBean createTree(String arg0) {

        TreeBean root = new TreeBean();

        if(arg0 != null && "".equals(arg0)){

            root.setCode("0");

        }else{

            root.setCode(arg0);

        }

        root.setLabel("客户合同树根");

        root.setType("ROOT");

        return root;

    }

    @Override

    public boolean hasChild(TreeBean arg0) {

        return this.retrieveNode(arg0).size()>0;

    }

    @Override

    public List<TreeBean> retrieveNode(TreeBean arg0) {

        List<TreeBean> list = new ArrayList<TreeBean>();

        if("ROOT".equals(arg0.getType())){

            List<UepCustomer> dataList = JPAUtil.loadAll(UepCustomer.class);

            for(UepCustomer entity : dataList){

                TreeBean node = new TreeBean();

                node.setCode(entity.getId().toString());

                node.setLabel(entity.getCustomerName());

                node.setType("CUSTOMER");

                //向前台传递参数或属性

                Map<String,String> extProp = new HashMap<String,String>();

                extProp.put("config", node.getCode()+"_"+node.getLabel());

                node.setExtProp(extProp);

                list.add(node);

            }

        }else if("CUSTOMER".equals(arg0.getType())){

            QueryParamList params = new QueryParamList();

            params.addParam("customerId",new BigDecimal(arg0.getCode()));

            List<UepContract> dataList = JPAUtil.load(UepContract.class,params);

            for(UepContract entity : dataList){

                TreeBean node = new TreeBean();

                node.setCode(entity.getId().toString());

                node.setLabel(entity.getContractName());

                node.setType("CONTRACT");

                list.add(node);

            }

        }

        return list;

    }

}