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package org.apache.cayenne.exp.parser;
import java.math.BigDecimal;
import java.util.List;
import org.apache.cayenne.access.DataContext;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.exp.Expression;
import org.apache.cayenne.exp.ExpressionFactory;
import org.apache.cayenne.query.ObjectSelect;
import org.apache.cayenne.query.Ordering;
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.CayenneProjects;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* Here we compare Expression evaluation in-memory vs execution in database.
* Results should be same for both cases.
* Here is primary collection of complex expressions:
* - To-Many relationships comparisons
* - Null comparisons
* - Null in AND and OR expressions
*
* @since 4.0
*/
@UseServerRuntime(CayenneProjects.TESTMAP_PROJECT)
public class ExpressionEvaluationIT extends ServerCase {
@Inject
private DataContext context;
@Inject
private DBHelper dbHelper;
private TableHelper tArtist, tGallery, tPaintings;
@Before
public void createArtistsDataSet() throws Exception {
tArtist = new TableHelper(dbHelper, "ARTIST");
tArtist.setColumns("ARTIST_ID", "ARTIST_NAME", "DATE_OF_BIRTH");
long dateBase = System.currentTimeMillis();
for (int i = 1; i <= 6; i++) {
tArtist.insert(i, "artist" + i, new java.sql.Date(dateBase + 10000 * i));
}
tGallery = new TableHelper(dbHelper, "GALLERY");
tGallery.setColumns("GALLERY_ID", "GALLERY_NAME");
tGallery.insert(1, "tate modern");
tPaintings = new TableHelper(dbHelper, "PAINTING");
tPaintings.setColumns("PAINTING_ID", "PAINTING_TITLE", "ARTIST_ID", "GALLERY_ID", "ESTIMATED_PRICE");
for (int i = 1; i <= 10; i++) {
tPaintings.insert(i, "painting" + i, i % 5 + 1, 1, i * 100);
}
tPaintings.insert(11, "painting11", null, 1, 10000);
tPaintings.insert(12, "painting12", 1, 1, null);
}
@Test
public void testSimpleLike() {
Expression exp = Artist.ARTIST_NAME
.like("artist%");
compareSqlAndEval(exp, 6);
}
@Test
public void testSimpleNotLike() {
Expression exp = Artist.ARTIST_NAME
.nlike("artist%");
compareSqlAndEval(exp, 0);
}
@Test
public void testSimpleEqual() {
Expression exp = Artist.ARTIST_NAME
.eq("artist2");
compareSqlAndEval(exp, 1);
}
@Test
public void testSimpleNotEqual() {
Expression exp = Artist.ARTIST_NAME
.ne("artist2");
compareSqlAndEval(exp, 5);
}
@Test
public void testLikeIgnoreCase() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.likeIgnoreCase("painting%");
compareSqlAndEval(exp, 5);
}
@Test
public void testNotLikeIgnoreCase() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.likeIgnoreCase("PaInTing%");
compareSqlAndEval(exp, 5);
}
@Test
public void testLike() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.like("painting%");
compareSqlAndEval(exp, 5);
}
@Test
public void testNotLike() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.like("painting%");
compareSqlAndEval(exp, 5);
}
@Test
public void testEqual() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.eq("painting1");
compareSqlAndEval(exp, 1);
}
@Test
public void testNotEqual1() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.ne("painting1");
compareSqlAndEval(exp, 5);
}
@Test
public void testNotEqual2() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.ne("painting11");
compareSqlAndEval(exp, 5);
}
@Test
public void testNotEqual3() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.PAINTING_TITLE)
.ne("zyz");
compareSqlAndEval(exp, 5);
}
@Test
public void testBetween() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.between(new BigDecimal(300), new BigDecimal(600));
compareSqlAndEval(exp, 4);
}
@Test
public void testNotBetween() {
Expression exp = ExpressionFactory.notBetweenExp(
"paintingArray.estimatedPrice",
new BigDecimal(300), new BigDecimal(600));
compareSqlAndEval(exp, 5);
}
@Test
public void testGreater() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.gt(new BigDecimal(799));
compareSqlAndEval(exp, 3);
}
@Test
public void testGreaterEqual() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.gte(new BigDecimal(800));
compareSqlAndEval(exp, 3);
}
@Test
public void testIn() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.in(new BigDecimal(800), new BigDecimal(300), new BigDecimal(700));
compareSqlAndEval(exp, 2);
}
@Test
public void testNotIn() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.nin(new BigDecimal(800), new BigDecimal(200), new BigDecimal(300), new BigDecimal(400), new BigDecimal(700));
compareSqlAndEval(exp, 3);
}
@Test
public void testLess() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.lt(new BigDecimal(801));
compareSqlAndEval(exp, 5);
}
@Test
public void testLessOrEqual() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.lte(new BigDecimal(800));
compareSqlAndEval(exp, 5);
}
@Test
public void testCollectionWithNull() {
Expression exp = Artist.PAINTING_ARRAY.dot(Painting.ESTIMATED_PRICE)
.lt(new BigDecimal(200));
compareSqlAndEval(exp, 1);
}
@Test
public void testGreaterWithNull() throws Exception {
tPaintings.deleteAll();
tArtist.deleteAll();
tArtist.insert(7, "artist7", null);
Expression expression = Artist.DATE_OF_BIRTH
.gt(new java.sql.Date(System.currentTimeMillis()));
compareSqlAndEval(expression, 0);
Expression expression1 = expression.notExp();
compareSqlAndEval(expression1, 0);
}
@Test
public void testGreaterEqualWithNull() throws Exception {
tPaintings.deleteAll();
tArtist.deleteAll();
tArtist.insert(7, "artist7", null);
Expression expression = Artist.DATE_OF_BIRTH
.gte(new java.sql.Date(System.currentTimeMillis()));
compareSqlAndEval(expression, 0);
Expression expression1 = expression.notExp();
compareSqlAndEval(expression1, 0);
}
@Test
public void testLessWithNull() throws Exception {
tPaintings.deleteAll();
tArtist.deleteAll();
tArtist.insert(7, "artist7", null);
Expression expression = Artist.DATE_OF_BIRTH
.lt(new java.sql.Date(System.currentTimeMillis()));
compareSqlAndEval(expression, 0);
Expression expression1 = expression.notExp();
compareSqlAndEval(expression1, 0);
}
@Test
public void testLessEqualWithNull() throws Exception {
tPaintings.deleteAll();
tArtist.deleteAll();
tArtist.insert(7, "artist7", null);
Expression expression = Artist.DATE_OF_BIRTH
.lte(new java.sql.Date(System.currentTimeMillis()));
compareSqlAndEval(expression, 0);
Expression expression1 = expression.notExp();
compareSqlAndEval(expression1, 0);
}
@Test
public void testAndWithNull() throws Exception {
tPaintings.deleteAll();
tArtist.deleteAll();
tArtist.insert(7, "artist7", null);
tArtist.insert(8, "artist8", null);
tArtist.insert(9, "artist9", null);
Expression nullExp = Artist.DATE_OF_BIRTH.lt(new java.sql.Date(System.currentTimeMillis()));
Expression and = ExpressionFactory.and(nullExp, Artist.ARTIST_NAME.eq("artist7"));
compareSqlAndEval(and, 0);
compareSqlAndEval(and.notExp(), 2);
}
@Test
public void testAndWithNull2() throws Exception {
tPaintings.deleteAll();
tArtist.deleteAll();
tArtist.insert(7, "artist7", null);
tArtist.insert(8, "artist8", null);
tArtist.insert(9, "artist9", null);
Expression nullExp = Artist.DATE_OF_BIRTH.lt(new java.sql.Date(System.currentTimeMillis()));
Expression and = ExpressionFactory.and(nullExp, Artist.ARTIST_NAME.eq("artist10"));
compareSqlAndEval(and, 0);
compareSqlAndEval(and.notExp(), 3);
}
@Test
public void testOrWithNull() throws Exception {
tPaintings.deleteAll();
tArtist.deleteAll();
tArtist.insert(7, "artist7", null);
tArtist.insert(8, "artist8", null);
tArtist.insert(9, "artist9", null);
Expression nullExp = Artist.DATE_OF_BIRTH.lt(new java.sql.Date(System.currentTimeMillis()));
Expression and = ExpressionFactory.or(nullExp, Artist.ARTIST_NAME.eq("artist7"));
compareSqlAndEval(and, 1);
compareSqlAndEval(and.notExp(), 0);
}
private void compareSqlAndEval(Expression exp, int expectedCount) {
// apply exp in SQL
Ordering ordering = new Ordering("db:ARTIST_ID");
List<Artist> filteredInSQL = ObjectSelect.query(Artist.class, exp).orderBy(ordering).select(context);
// apply exp to in-memory collection
List<Artist> filteredInMemory = exp.filterObjects(
ObjectSelect.query(Artist.class).prefetch(Artist.PAINTING_ARRAY.disjoint()).select(context)
);
ordering.orderList(filteredInMemory);
assertEquals(expectedCount, filteredInMemory.size());
assertEquals(filteredInSQL, filteredInMemory);
}
}