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  package org.apache.cayenne.access;
  
  import org.apache.cayenne.ObjectContext;
  import org.apache.cayenne.QueryResponse;
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.query.EJBQLQuery;
  import org.apache.cayenne.test.jdbc.DBHelper;
  import org.apache.cayenne.test.jdbc.TableHelper;
  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.Before;
  import org.junit.Test;
  
  import java.util.List;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  
  @UseCayenneRuntime(CayenneProjects.MEANINGFUL_PK_PROJECT)
  public class DataContextEJBQLDeletePKIT extends RuntimeCase {
  
      @Inject
      protected ObjectContext context;
  
      @Inject
      protected DBHelper dbHelper;
  
      protected TableHelper tMeaningfulPKTest1Table;
  
      @Before
      public void setUp() throws Exception {
          tMeaningfulPKTest1Table = new TableHelper(dbHelper, "MEANINGFUL_PK_TEST1");
          tMeaningfulPKTest1Table.setColumns("PK_ATTRIBUTE", "DESCR", "INT_ATTRIBUTE");
      }
  
      protected void createMeaningfulPKDataSet() throws Exception {
          for (int i = 1; i <= 33; i++) {
              tMeaningfulPKTest1Table.insert(i, "a" + i, 0);
          }
      }
  
      @Test
      public void testDeleteIdVar() throws Exception {
  
          createMeaningfulPKDataSet();
  
          EJBQLQuery q = new EJBQLQuery("select m.pkAttribute from MeaningfulPKTest1 m");
  
          @SuppressWarnings("unchecked")
          List<Integer> id = (List<Integer>)context.performQuery(q);
  
          String ejbql = "delete from MeaningfulPKTest1 m WHERE m.pkAttribute in (:id)";
  
          EJBQLQuery query = new EJBQLQuery(ejbql);
          query.setParameter("id", id);
          QueryResponse result = context.performGenericQuery(query);
  
          int[] count = result.firstUpdateCount();
          assertNotNull(count);
          assertEquals(1, count.length);
          assertEquals(33, count[0]);
      }
  }
  