com.ewcms.mongo.demo.repositories.PersonRepositoryImpl.java Source code

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Here is the source code for com.ewcms.mongo.demo.repositories.PersonRepositoryImpl.java

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/**
 * Copyright (c)2010-2011 Enterprise Website Content Management System(EWCMS), All rights reserved.
 * EWCMS PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 * http://www.ewcms.com
 */
package com.ewcms.mongo.demo.repositories;

import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.data.mongodb.core.DbCallback;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.stereotype.Repository;

import com.ewcms.common.repositories.MongoBaseRepository;
import com.ewcms.mongo.demo.model.Person;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoException;

@Repository
public class PersonRepositoryImpl extends MongoBaseRepository<Person, String> implements PersonRepository {

    @Autowired
    public PersonRepositoryImpl(MongoOperations mongoOperations) {
        super(Person.class, mongoOperations);
    }

    @Override
    public List<Person> findWorkByAgeRang(final int start, final int end) {
        return getMongoOperations().execute(new DbCallback<List<Person>>() {
            @Override
            public List<Person> doInDB(DB db) throws MongoException, DataAccessException {
                DBCollection coll = db.getCollection("person");
                BasicDBObject query = new BasicDBObject();
                query.put("age", new BasicDBObject("$gte", 20).append("$lte", 60));
                DBCursor cur = coll.find(query);
                List<Person> list = new ArrayList<Person>();
                for (; cur.hasNext();) {
                    DBObject source = cur.next();
                    Person person = convertEntity(source);
                    list.add(person);
                }
                return list;
            }
        });
    }

}