ebean/src/test/java/com/avaje/tests/query/TestAutofetchTuneWithJoin.java

package com.avaje.tests.query;

import java.util.List;

import junit.framework.TestCase;

import com.avaje.ebean.AdminAutofetch;
import com.avaje.ebean.Ebean;
import com.avaje.ebean.Query;
import com.avaje.ebean.bean.ObjectGraphNode;
import com.avaje.ebean.bean.ObjectGraphOrigin;
import com.avaje.ebean.meta.MetaAutoFetchStatistic;
import com.avaje.ebean.meta.MetaAutoFetchStatistic.NodeUsageStats;
import com.avaje.ebean.meta.MetaAutoFetchStatistic.QueryStats;
import com.avaje.ebeaninternal.api.SpiQuery;
import com.avaje.ebeaninternal.server.querydefn.DefaultOrmQuery;
import com.avaje.tests.model.basic.Address;
import com.avaje.tests.model.basic.Customer;
import com.avaje.tests.model.basic.Order;
import com.avaje.tests.model.basic.ResetBasicData;

public class TestAutofetchTuneWithJoin extends TestCase {

    public void test() {
        runQuery();
        collectUsage();
    }

    private void runQuery() {

        ResetBasicData.reset();

        Query<Order> q = Ebean.find(Order.class)
            .setAutofetch(true)
            .fetch("customer")
            .fetch("customer.contacts")
            .where().lt("id", 3)
            .query();

        List<Order> list = q.findList();

        for (int i = 0; i < list.size(); i++) {
            Order order = list.get(i);
            order.getOrderDate();
            order.getShipDate();
            // order.setShipDate(new Date(System.currentTimeMillis()));
            Customer customer = order.getCustomer();
            customer.getName();
            Address shippingAddress = customer.getShippingAddress();
            if (shippingAddress != null) {
                shippingAddress.getLine1();
                shippingAddress.getCity();
            }
            // customer.getContacts()
        }

        SpiQuery<?> sq = (SpiQuery<?>) q;
        ObjectGraphNode parentNode = sq.getParentNode();
        ObjectGraphOrigin origin = parentNode.getOriginQueryPoint();

        System.out.println("Origin:" + origin.getKey());

//        MetaAutoFetchStatistic metaAutoFetchStatistic = ((DefaultOrmQuery<?>)q).getMetaAutoFetchStatistic();
//        if (metaAutoFetchStatistic != null) {
//            List<NodeUsageStats> nodeUsageStats = metaAutoFetchStatistic.getNodeUsageStats();
//            System.out.println(nodeUsageStats);
//            List<QueryStats> queryStats = metaAutoFetchStatistic.getQueryStats();
//            System.out.println(queryStats);
//        }

        if (q.isAutofetchTuned()) {
            System.out.println("TUNED...");
        }
    }

    private static void collectUsage() {

        AdminAutofetch adminAutofetch = Ebean.getServer(null).getAdminAutofetch();
        adminAutofetch.collectUsageViaGC();

    }

}