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* to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.access;
import java.util.List;
import org.apache.cayenne.DataRow;
import org.apache.cayenne.QueryResponse;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.query.QueryChain;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.test.jdbc.DBHelper;
import org.apache.cayenne.testdo.testmap.Artist;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
@UseServerRuntime(ServerCase.TESTMAP_PROJECT)
public class DataContextQueryChainTest extends ServerCase {
@Inject
private DataContext context;
@Inject
private DBHelper dbHelper;
@Override
protected void setUpAfterInjection() throws Exception {
dbHelper.deleteAll("PAINTING_INFO");
dbHelper.deleteAll("PAINTING");
dbHelper.deleteAll("PAINTING1");
dbHelper.deleteAll("ARTIST_EXHIBIT");
dbHelper.deleteAll("ARTIST_GROUP");
dbHelper.deleteAll("ARTIST");
}
public void testSelectQuery() {
Artist a1 = context.newObject(Artist.class);
a1.setArtistName("X");
context.commitChanges();
QueryChain chain = new QueryChain();
chain.addQuery(new SelectQuery(Artist.class));
chain.addQuery(new SelectQuery(Artist.class));
QueryResponse r = context.performGenericQuery(chain);
// data comes back as datarows
assertEquals(2, r.size());
r.reset();
r.next();
List<?> l1 = r.currentList();
r.next();
List<?> l2 = r.currentList();
assertTrue(l1.get(0) instanceof DataRow);
assertTrue(l2.get(0) instanceof DataRow);
}
}