Mongo的ORM框架的学习Morphia(五)使用容器(Using Lists, Sets, and Maps)
package com.easyway.mash5.app.model;import java.util.List;import java.util.Set;import java.util.Vector;import com.google.code.morphia.annotations.Entity;import com.google.code.morphia.annotations.Property;import com.google.code.morphia.annotations.Reference;/** * Mongodb 的ORM框架 Morphia 之 使用容器(Using Lists, Sets, and Maps) . * 集合的使用： * Morphia 支持容器(List, Set, Map) 和数组(Integer) * Morphia 将使用一下实现(默认)来创建容器： *? java.util.ArrayList for List *?java.util.HashSet for Set *?java.util.hashMap for Map * 如果你想使用其他的实现， 你可以在注解中重写他们 * @Property(concreteClass = java.util.TreeSet.class) * private Set<String> tags; * * @Embedded(concreteClass = java.util.TreeMap.class) * private Map<String,Translation> translations; * * @Reference(concreteClass = java.util.Vector.class) * private List<Article> relatedArticles; * * //是否延时加载相关的关联应用对象 * @Property("userCollection") * @Reference(concreteClass = java.util.Vector.class,lazy=true) * private List<UserCollection> userCollectionList; //拥有该角色的团队 * * 角色模型类 * @Title: * @Description: 实现TODO * @Copyright:Copyright (c) 2011 * @Company:易程科技股份有限公司 * @Date:2012-3-1 * @author * @version 1.0 */@Entity("Role")public class Role extends BaseEntry {/** * */private static final long serialVersionUID = 1L;private String name; //角色的名称private String desc; //角色的描述@Property("acl")@Reference(concreteClass = Vector.class)private List<ACL> priviligeList; //角色拥有的权限的引用对象@Property("userCollection")@Reference(concreteClass = java.util.Vector.class,lazy=true)private List<UserCollection> userCollectionList; //拥有该角色的团队@Property("member")@Reference(concreteClass =java.util.TreeSet.class,lazy=false)private Set<User> userList; //拥有该角色的用户的信息public String getName() {return name;}public void setName(String name) {this.name = name;}public String getDesc() {return desc;}public void setDesc(String desc) {this.desc = desc;}public List<ACL> getPriviligeList() {return priviligeList;}public void setPriviligeList(List<ACL> priviligeList) {this.priviligeList = priviligeList;}public List<UserCollection> getUserCollectionList() {return userCollectionList;}public void setUserCollectionList(List<UserCollection> userCollectionList) {this.userCollectionList = userCollectionList;}public Set<User> getUserList() {return userList;}public void setUserList(Set<User> userList) {this.userList = userList;}}?