Spring data mongodb @Document定义Enum/List/Map数据结构

本文节选自《Netkiller Java 手札》

7.2.2. @Document

复杂的 @Document 数据类型定义

		package cn.netkiller.domain;

import java.util.Date;
import java.util.List;
import java.util.Map;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

@Document
public class MultilevelDirectSellingTradingRebate {

	public enum Type {
		POINT, CASH, GIFT
	}

	public enum Rebate {
		DIRECT, INDIRECT
	}

	public enum Status {
		New, Rejected, Approved
	}

	@Id
	private String id;
	public String name;
	public Date beginDate;
	public Date endDate;
	public double lowAmount;
	public double highAmount;
	public Type type;
	public Status status = Status.New;
	public List<Map<String, Map<?, ?>>> product;

	@Override
	public String toString() {
		return "MultilevelDirectSellingTradingRebate [id=" + id + ", name=" + name + ", beginDate=" + beginDate
				+ ", endDate=" + endDate + ", lowAmount=" + lowAmount + ", highAmount=" + highAmount + ", type=" + type
				+ ", status=" + status + ", product=" + product + "]";
	}

}

7.2.2.1. 在 @Document 中使用 Enum 类型

	public enum Type {
		POINT, CASH, GIFT
	}

	public enum Rebate {
		DIRECT, INDIRECT
	}

	public enum Status {
		New, Rejected, Approved
	}

枚举类型的赋值方法

		MultilevelDirectSellingTradingRebate multilevelDirectSellingTradingRebate = new MultilevelDirectSellingTradingRebate();
		multilevelDirectSellingTradingRebate.name = "TEST";
		multilevelDirectSellingTradingRebate.beginDate = new Date();
		multilevelDirectSellingTradingRebate.endDate = new Date();
		multilevelDirectSellingTradingRebate.lowAmount = 1.5d;
		multilevelDirectSellingTradingRebate.highAmount = 100d;
		multilevelDirectSellingTradingRebate.type = Type.CASH;

7.2.2.2. 在 @Document 中定义数据结构 List/Map

	public List<Map<String, Map<?, ?>>> product;

下面是数据集结构的赋值例子

	Map<Enum<Rebate>, Double> rebate = new HashMap<Enum<Rebate>, Double>();

	rebate.put(Rebate.DIRECT, 10.05d);
	rebate.put(Rebate.INDIRECT, 6.05d);

	Map<String, Map<?, ?>> prod1 = new HashMap<String, Map<?, ?>>();
	prod1.put("USDRMB", rebate);

	List<Map<String, Map<?, ?>>> products = new ArrayList<Map<String, Map<?, ?>>>();
	products.add(prod1);
	multilevelDirectSellingTradingRebate.product = products;