MongDB之各种删除操作

接口IMongDaoDelete：

package com.net.test.mongdb.dao;

public interface IMongDaoDelete {
    
    public void deleteByName(String name);
    
    public void deleteLikeName(String name);
    
    public void deleteArrFirst(String name);
    
    public void pullDomArray(String name,String key,String value);
    
}

实现类：

package com.net.test.mongdb.dao.imp;

import javax.annotation.Resource;

import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.data.mongodb.core.query.Update.Position;
import org.springframework.stereotype.Repository;

import com.net.test.mongdb.dao.IMongDaoDelete;
import com.net.test.mongdb.entity.User;


/**
 * @author ****
 * @Time：2017年8月4日 上午10:34:06
 * @version 1.0  
 * Function: Delete
 */
@Repository
public class MongDaoDeleteImp implements IMongDaoDelete{
    
    @Resource
    protected MongoTemplate mongoTemplate;
    
    /**
     * @description 单条精确删除对象
     * @param name
     */
    @Override
    public void deleteByName(String name) 
    {
        Query query = Query.query(Criteria.where("name").is(name));
        mongoTemplate.remove(query, User.class);
    }
 
    /**
     * @description 模糊删除对象，批量
     * @param name
     */
    @Override
    public void deleteLikeName(String name) 
    {
        Query query = Query.query(Criteria.where("name").regex(name));
        mongoTemplate.remove(query, User.class);
    }
    
    /**
     * 
     * @description 删除user元素中hobby属性数组元素的开头或者结尾，根据参数而定
     * @param name
     */
     @Override
    public void deleteArrFirst(String name) 
    {
        Query query = Query.query(Criteria.where("name").is(name));
        
        Update update = new Update();
        update.pop("hobby", Position.FIRST);
        mongoTemplate.updateFirst(query, update, User.class);
        
        update.pop("hobby", Position.LAST);
        mongoTemplate.updateFirst(query, update, User.class);
    }
     
     
    /**
     * @description 根据hobby数组的具体对象值，删除对象的数组数据
     * @param name  行数据名称
     * @param key   数组键
     * @param value 数组值
     */
    @Override
    public void pullDomArray(String name,String key, String value) 
    {
        Query query = new Query();
        query.addCriteria(Criteria.where("name").is(name));
        
        Update update = new Update();
        update.pull(key, value);
        
        mongoTemplate.updateFirst(query, update, User.class);
    }

}