DataStore

package me.dvorkin;

import com.google.appengine.api.datastore.*;

public class DataStore {
    public static void main(String[] args) throws EntityNotFoundException {
        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();

        Entity entity = new Entity("monster", 566);
        entity.setProperty("health", 100);
        entity.setProperty("name", "Vasya");

        datastore.put(entity);

        entity = datastore.get(KeyFactory.createKey("monster", 566));
        int health = (Integer) entity.getProperty("health");
        String name = (String) entity.getProperty("name");
    }
}