Mongo的ORM框架的学习Morphia(四)@Reference 的用法
package com.easyway.mash5.app.model;import java.util.List;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;/** *@Reference 的用法： * //引用对象 Mongo在同一个数据库引用一个文档(对象)到另一个。 *当使用引用时有很重要的一点我们必须提及：被引用的对像在被引用之前必须已经保存到了 *MongoDB数据库中。 * //默认情况下，Morphia使用属性名作为在数据库中保存的值。当然这个可以在@Reference注解中指定。 * * 补充：注解使用的参数。 * concreteClass: 指定具体的实体类。 * ignoreMissing: 忽略任何不能解决的参考。 * lazy： 为参考创建一个代理，这个将在第一次调用时加载(类似Hibernate中的lazy属性) * value: 指定在Mongo中存储的属性名。 * @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("UserCollection")public class UserCollection extends BaseEntry {/** * */private static final long serialVersionUID = 1L;@Property("member")@Reference(concreteClass = Vector.class)private List<User> memberList;private String name;private String owner;private String isOrganization;private String type;private String isOrganiztion;private String alphabet;private String firstAlphabet;private String tag;private String avatarURLKey;@Property("role")@Reference(concreteClass = Vector.class)private List<Role> roleList;private String desc;@Property("task")@Reference(concreteClass = Vector.class)private List<Task> privateTaskList;private String organizationVersion;private String organizationName;private String customerTable;public List<User> getMemberList() {return memberList;}public void setMemberList(List<User> memberList) {this.memberList = memberList;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getOwner() {return owner;}public void setOwner(String owner) {this.owner = owner;}public String getIsOrganization() {return isOrganization;}public void setIsOrganization(String isOrganization) {this.isOrganization = isOrganization;}public String getType() {return type;}public void setType(String type) {this.type = type;}public String getIsOrganiztion() {return isOrganiztion;}public void setIsOrganiztion(String isOrganiztion) {this.isOrganiztion = isOrganiztion;}public String getAlphabet() {return alphabet;}public void setAlphabet(String alphabet) {this.alphabet = alphabet;}public String getFirstAlphabet() {return firstAlphabet;}public void setFirstAlphabet(String firstAlphabet) {this.firstAlphabet = firstAlphabet;}public String getTag() {return tag;}public void setTag(String tag) {this.tag = tag;}public String getAvatarURLKey() {return avatarURLKey;}public void setAvatarURLKey(String avatarURLKey) {this.avatarURLKey = avatarURLKey;}public List<Role> getRoleList() {return roleList;}public void setRoleList(List<Role> roleList) {this.roleList = roleList;}public String getDesc() {return desc;}public void setDesc(String desc) {this.desc = desc;}public List<Task> getPrivateTaskList() {return privateTaskList;}public void setPrivateTaskList(List<Task> privateTaskList) {this.privateTaskList = privateTaskList;}public String getOrganizationVersion() {return organizationVersion;}public void setOrganizationVersion(String organizationVersion) {this.organizationVersion = organizationVersion;}public String getOrganizationName() {return organizationName;}public void setOrganizationName(String organizationName) {this.organizationName = organizationName;}public String getCustomerTable() {return customerTable;}public void setCustomerTable(String customerTable) {this.customerTable = customerTable;}}?