TestLazyLoadInCache.java

package org.tests.basic;

import io.ebean.BaseTestCase;
import io.ebean.BeanState;
import io.ebean.Ebean;
import org.tests.model.basic.Address;
import org.tests.model.basic.Customer;
import org.tests.model.basic.ResetBasicData;
import org.junit.Test;

import java.util.Map;
import java.util.Set;

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

public class TestLazyLoadInCache extends BaseTestCase {

  @Test
  public void testLoadInCache() {

    ResetBasicData.reset();

    Map<Integer, Customer> map = Ebean.find(Customer.class)
      .select("id, name")
      .setLoadBeanCache(true)
      .setReadOnly(true)
      .orderBy().asc("id")
      .findMap();

    assertTrue(!map.isEmpty());

    Object id = map.keySet().iterator().next();

    Customer cust1 = map.get(id);

    Customer cust1B = Ebean.find(Customer.class)
      .setReadOnly(true)
      .setId(id)
      .findOne();

    assertTrue(cust1 != cust1B);

    Set<String> loadedProps = Ebean.getBeanState(cust1).getLoadedProps();

    assertTrue(loadedProps.contains("name"));
    assertFalse(loadedProps.contains("status"));

    cust1.getStatus();

    // a readOnly reference
    Address billingAddress = cust1.getBillingAddress();
    BeanState billAddrState = Ebean.getBeanState(billingAddress);
    assertTrue(billAddrState.isReference());
    assertTrue(billAddrState.isReadOnly());

    // lazy load .. no longer a reference
    billingAddress.getCity();
    assertFalse(billAddrState.isReference());

  }

}