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  package org.apache.cayenne.access;
  
  import org.apache.cayenne.Cayenne;
  import org.apache.cayenne.ObjectId;
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.query.ObjectIdQuery;
  import org.apache.cayenne.query.SQLTemplate;
  import org.apache.cayenne.testdo.testmap.Artist;
  import org.apache.cayenne.unit.di.runtime.CayenneProjects;
  import org.apache.cayenne.unit.di.runtime.RuntimeCase;
  import org.apache.cayenne.unit.di.runtime.UseCayenneRuntime;
  import org.junit.Test;
  
  import java.util.Collections;
  import java.util.Date;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  
  @UseCayenneRuntime(CayenneProjects.TESTMAP_PROJECT)
  public class DataContextObjectIdQueryIT extends RuntimeCase {
  
      @Inject
      private DataContext context;
  
      @Test
      public void testRefreshNullifiedValuesNew() {
  
          Artist a = context.newObject(Artist.class);
          a.setArtistName("X");
          a.setDateOfBirth(new Date());
  
          context.commitChanges();
  
          context.performGenericQuery(new SQLTemplate(
                  Artist.class,
                  "UPDATE ARTIST SET DATE_OF_BIRTH = NULL"));
  
          long id = Cayenne.longPKForObject(a);
          ObjectIdQuery query = new ObjectIdQuery(ObjectId.of(
                  "Artist",
                  Artist.ARTIST_ID_PK_COLUMN,
                  id), false, ObjectIdQuery.CACHE_REFRESH);
  
          Artist a1 = (Artist) Cayenne.objectForQuery(context, query);
          assertNull(a1.getDateOfBirth());
          assertEquals("X", a1.getArtistName());
      }
  
      @Test
      public void testNoRefreshValuesNew() {
  
          Artist a = context.newObject(Artist.class);
          a.setArtistName("X");
  
          context.commitChanges();
  
          context.performGenericQuery(new SQLTemplate(
                  Artist.class,
                  "UPDATE ARTIST SET ARTIST_NAME = 'Y'"));
  
          long id = Cayenne.longPKForObject(a);
          ObjectIdQuery query = new ObjectIdQuery(ObjectId.of(
                  "Artist",
                  Artist.ARTIST_ID_PK_COLUMN,
                  id), false, ObjectIdQuery.CACHE);
  
          Artist a1 = (Artist) Cayenne.objectForQuery(context, query);
          assertEquals("X", a1.getArtistName());
      }
  
      @Test
      public void testRefreshNullifiedValuesExisting() {
  
          SQLTemplate insert = new SQLTemplate(
                  Artist.class,
                  "INSERT INTO ARTIST (ARTIST_ID, ARTIST_NAME, DATE_OF_BIRTH) VALUES (44, 'X', #bind($date 'DATE'))");
          insert.setParameters(Collections.singletonMap("date", new Date()));
  
          context.performGenericQuery(insert);
  
          Artist a = Cayenne.objectForPK(context, Artist.class, 44L);
          assertNotNull(a.getDateOfBirth());
          assertEquals("X", a.getArtistName());
  
          context.performGenericQuery(new SQLTemplate(
                  Artist.class,
                  "UPDATE ARTIST SET DATE_OF_BIRTH = NULL"));
  
          ObjectIdQuery query = new ObjectIdQuery(ObjectId.of(
                  "Artist",
                  Artist.ARTIST_ID_PK_COLUMN,
                  44L), false, ObjectIdQuery.CACHE_REFRESH);
  
          Artist a1 = (Artist) Cayenne.objectForQuery(context, query);
          assertNull(a1.getDateOfBirth());
          assertEquals("X", a1.getArtistName());
      }
  }
  