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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.ObjectContext;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.exp.Expression;
import org.apache.cayenne.exp.ExpressionFactory;
import org.apache.cayenne.map.Entity;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.query.SortOrder;
import org.apache.cayenne.test.jdbc.DBHelper;
import org.apache.cayenne.test.jdbc.TableHelper;
import org.apache.cayenne.testdo.testmap.Artist;
import org.apache.cayenne.testdo.testmap.Painting;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
@UseServerRuntime(ServerCase.TESTMAP_PROJECT)
public class DataContextOuterJoinsTest extends ServerCase {
@Inject
protected ObjectContext context;
@Inject
protected DBHelper dbHelper;
protected TableHelper artistHelper;
protected TableHelper paintingHelper;
protected TableHelper artgroupHelper;
protected TableHelper artistGroupHelper;
@Override
protected void setUpAfterInjection() throws Exception {
artistHelper = new TableHelper(dbHelper, "ARTIST", "ARTIST_ID", "ARTIST_NAME");
paintingHelper = new TableHelper(
dbHelper,
"PAINTING",
"PAINTING_ID",
"ARTIST_ID",
"PAINTING_TITLE");
artgroupHelper = new TableHelper(dbHelper, "ARTGROUP", "GROUP_ID", "NAME");
artistGroupHelper = new TableHelper(
dbHelper,
"ARTIST_GROUP",
"GROUP_ID",
"ARTIST_ID");
artistGroupHelper.deleteAll();
artgroupHelper.deleteAll();
paintingHelper.deleteAll();
artistHelper.deleteAll();
}
public void testSelectWithOuterJoinFlattened() throws Exception {
artistHelper.insert(33001, "AA1");
artistHelper.insert(33002, "AA2");
artistHelper.insert(33003, "BB1");
artistHelper.insert(33004, "BB2");
artgroupHelper.insert(1, "G1");
artistGroupHelper.insert(1, 33001);
artistGroupHelper.insert(1, 33002);
artistGroupHelper.insert(1, 33004);
SelectQuery missingToManyQuery = new SelectQuery(Artist.class);
missingToManyQuery.andQualifier(ExpressionFactory.matchExp(
Artist.GROUP_ARRAY_PROPERTY + Entity.OUTER_JOIN_INDICATOR,
null));
missingToManyQuery.addOrdering(Artist.ARTIST_NAME_PROPERTY, SortOrder.ASCENDING);
List<Artist> artists = context.performQuery(missingToManyQuery);
assertEquals(1, artists.size());
assertEquals("BB1", artists.get(0).getArtistName());
}
public void testSelectWithOuterJoin() throws Exception {
artistHelper.insert(33001, "AA1");
artistHelper.insert(33002, "AA2");
artistHelper.insert(33003, "BB1");
artistHelper.insert(33004, "BB2");
paintingHelper.insert(33001, 33001, "P1");
paintingHelper.insert(33002, 33002, "P2");
SelectQuery missingToManyQuery = new SelectQuery(Artist.class);
missingToManyQuery.andQualifier(ExpressionFactory.matchExp(
Artist.PAINTING_ARRAY_PROPERTY + Entity.OUTER_JOIN_INDICATOR,
null));
missingToManyQuery.addOrdering(Artist.ARTIST_NAME_PROPERTY, SortOrder.ASCENDING);
List<Artist> artists = context.performQuery(missingToManyQuery);
assertEquals(2, artists.size());
assertEquals("BB1", artists.get(0).getArtistName());
SelectQuery mixedConditionQuery = new SelectQuery(Artist.class);
mixedConditionQuery.andQualifier(ExpressionFactory.matchExp(
Artist.PAINTING_ARRAY_PROPERTY + Entity.OUTER_JOIN_INDICATOR,
null));
mixedConditionQuery.orQualifier(ExpressionFactory.matchExp(
Artist.ARTIST_NAME_PROPERTY,
"AA1"));
mixedConditionQuery.addOrdering(Artist.ARTIST_NAME_PROPERTY, SortOrder.ASCENDING);
artists = context.performQuery(mixedConditionQuery);
assertEquals(3, artists.size());
assertEquals("AA1", artists.get(0).getArtistName());
assertEquals("BB1", artists.get(1).getArtistName());
assertEquals("BB2", artists.get(2).getArtistName());
}
public void testSelectWithOuterJoinFromString() throws Exception {
artistHelper.insert(33001, "AA1");
artistHelper.insert(33002, "AA2");
artistHelper.insert(33003, "BB1");
artistHelper.insert(33004, "BB2");
paintingHelper.insert(33001, 33001, "P1");
paintingHelper.insert(33002, 33002, "P2");
SelectQuery missingToManyQuery = new SelectQuery(Artist.class);
missingToManyQuery.andQualifier(Expression.fromString("paintingArray+ = null"));
missingToManyQuery.addOrdering(Artist.ARTIST_NAME_PROPERTY, SortOrder.ASCENDING);
List<Artist> artists = context.performQuery(missingToManyQuery);
assertEquals(2, artists.size());
assertEquals("BB1", artists.get(0).getArtistName());
SelectQuery mixedConditionQuery = new SelectQuery(Artist.class);
mixedConditionQuery.andQualifier(ExpressionFactory.matchExp(
Artist.PAINTING_ARRAY_PROPERTY + Entity.OUTER_JOIN_INDICATOR,
null));
mixedConditionQuery.orQualifier(ExpressionFactory.matchExp(
Artist.ARTIST_NAME_PROPERTY,
"AA1"));
mixedConditionQuery.addOrdering(Artist.ARTIST_NAME_PROPERTY, SortOrder.ASCENDING);
artists = context.performQuery(mixedConditionQuery);
assertEquals(3, artists.size());
assertEquals("AA1", artists.get(0).getArtistName());
assertEquals("BB1", artists.get(1).getArtistName());
assertEquals("BB2", artists.get(2).getArtistName());
}
public void testSelectWithOuterOrdering() throws Exception {
artistHelper.insert(33001, "AA1");
artistHelper.insert(33002, "AA2");
paintingHelper.insert(33001, 33001, "P1");
paintingHelper.insert(33002, 33002, "P2");
paintingHelper.insert(33003, null, "P3");
SelectQuery query = new SelectQuery(Painting.class);
query.addOrdering("toArtist+.artistName", SortOrder.DESCENDING);
List<Artist> paintings = context.performQuery(query);
assertEquals(3, paintings.size());
}
}