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package org.apache.cayenne.access;
import java.util.List;
import org.apache.art.Artist;
import org.apache.art.Painting;
import org.apache.cayenne.exp.Expression;
import org.apache.cayenne.exp.ExpressionFactory;
import org.apache.cayenne.map.Entity;
import org.apache.cayenne.query.Ordering;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.unit.CayenneCase;
public class DataContextOuterJoinsTest extends CayenneCase {
@Override
protected void setUp() throws Exception {
super.setUp();
deleteTestData();
}
public void testSelectWithOuterJoinFlattened() throws Exception {
createTestData("testSelectWithOuterJoinFlattened");
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, Ordering.ASC);
List<Artist> artists = createDataContext().performQuery(missingToManyQuery);
assertEquals(1, artists.size());
assertEquals("BB1", artists.get(0).getArtistName());
}
public void testSelectWithOuterJoin() throws Exception {
createTestData("testSelectWithOuterJoin");
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, Ordering.ASC);
List<Artist> artists = createDataContext().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, Ordering.ASC);
artists = createDataContext().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 {
createTestData("testSelectWithOuterJoin");
SelectQuery missingToManyQuery = new SelectQuery(Artist.class);
missingToManyQuery.andQualifier(Expression.fromString("paintingArray+ = null"));
missingToManyQuery.addOrdering(Artist.ARTIST_NAME_PROPERTY, Ordering.ASC);
List<Artist> artists = createDataContext().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, Ordering.ASC);
artists = createDataContext().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 {
createTestData("testSelectWithOuterOrdering");
SelectQuery query = new SelectQuery(Painting.class);
query.addOrdering("toArtist+.artistName", Ordering.DESC);
List<Artist> paintings = createDataContext().performQuery(query);
assertEquals(3, paintings.size());
}
}