Inserting Java Object to MongoDB Collection Using Java

Question

I am trying to insert a whole Java object into a MongoDB Collection using Java. I am getting following error:

Error :

Exception in t         


        

Answer 1

Pro
you continue to work with strong typed objects as you wanted to

Contra
Some people really dislike : extends

package foo;
import com.mongodb.BasicDBObject;


public class Employee extends BasicDBObject {

private static final long serialVersionUID = 2105061907470199595L;
//should be something shorter as "name" like "n" 
//here just use name to conform your  sample
public static final String NAME = "name";
public static final String NO = "no";
public static final String COLLECTION_NAME = "employee";

public Long getNo() {
    return getLong(NO);
}

public void setNo(long no) {
    put(NO, no);
}

public String getName() {
    return getString(NAME);
}

public void setName(String name) {
    put(NAME, name);
}


}

package foo;
import java.net.UnknownHostException;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.Mongo;
import com.mongodb.MongoException;


public class Test {

public static void main(String[] args) throws UnknownHostException,
        MongoException {

    Mongo mongo = new Mongo("localhost", 27017);
    DB db = mongo.getDB("yeahMongo");

    Employee employee = new Employee();
    employee.setNo(1L);
    employee.setName("yogesh");

    DBCollection employeeCollection = null ;
    employeeCollection = db.getCollection(Employee.COLLECTION_NAME);

    employeeCollection.save(employee);

    System.err.println(employeeCollection.findOne());

}


}

In addition to morphia you should take a look to jongo : http://jongo.org/ jongo use the same form syntax as js mongo engine, and I found it great point for a beginner. You don't have to switch your mental map between mongojs and java. you can use the js sample with little changes.