TestQueryCacheCountry.java

package org.tests.cache;

import io.ebean.BaseTestCase;
import io.ebean.Ebean;
import io.ebean.cache.ServerCache;
import io.ebean.cache.ServerCacheStatistics;
import org.tests.model.basic.Country;
import org.tests.model.basic.ResetBasicData;
import org.junit.Assert;
import org.junit.Test;

import java.util.List;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

public class TestQueryCacheCountry extends BaseTestCase {

  @Test
  public void test() {

    ResetBasicData.reset();

    awaitL2Cache();

    ServerCache queryCache = Ebean.getServerCacheManager().getQueryCache(Country.class);
    queryCache.clear();

    ServerCache beanCache = Ebean.getServerCacheManager().getBeanCache(Country.class);
    beanCache.clear();

    assertEquals(0, queryCache.getStatistics(false).getSize());

    List<Country> countryList0 = Ebean.find(Country.class)
      .setUseQueryCache(true)
      .order().asc("name")
      .findList();

    assertEquals(1, queryCache.getStatistics(false).getSize());
    assertTrue(!countryList0.isEmpty());

    List<Country> countryList1 = Ebean.find(Country.class)
      .setUseQueryCache(true)
      .order().asc("name")
      .findList();

    ServerCacheStatistics statistics = queryCache.getStatistics(false);
    assertEquals(1, statistics.getSize());
    assertEquals(1, statistics.getHitCount());
    Assert.assertSame(countryList1, countryList0);

    Country nz = Ebean.find(Country.class, "NZ");
    nz.setName("New Zealandia");
    Ebean.save(nz);
    awaitL2Cache();

    statistics = queryCache.getStatistics(false);
    assertEquals(0, statistics.getSize());

    List<Country> countryList2 = Ebean.find(Country.class)
      .setUseQueryCache(true)
      .order().asc("name")
      .findList();

    Assert.assertNotSame(countryList2, countryList0);
  }

}