/*
* Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.querydsl.jdo;
import static org.junit.Assert.*;
import java.sql.SQLException;
import java.util.List;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import com.google.common.collect.Lists;
import com.querydsl.core.NonUniqueResultException;
import com.querydsl.core.QueryResults;
import com.querydsl.core.Tuple;
import com.querydsl.core.types.Expression;
import com.querydsl.core.types.Projections;
import com.querydsl.core.types.SubQueryExpression;
import com.querydsl.core.types.dsl.BooleanExpression;
import com.querydsl.jdo.sql.JDOSQLQuery;
import com.querydsl.jdo.test.domain.Product;
import com.querydsl.jdo.test.domain.sql.SProduct;
import com.querydsl.sql.HSQLDBTemplates;
import com.querydsl.sql.SQLTemplates;
public class JDOSQLQueryTest extends AbstractJDOTest {
private final SQLTemplates sqlTemplates = new HSQLDBTemplates();
private final SProduct product = SProduct.product;
protected JDOSQLQuery<?> sql() {
return new JDOSQLQuery<Void>(pm, sqlTemplates);
}
@Test
public void count() {
assertEquals(30L, sql().from(product).fetchCount());
}
@Test(expected = NonUniqueResultException.class)
public void uniqueResult() {
sql().from(product).orderBy(product.name.asc()).select(product.name).fetchOne();
}
@Test
public void singleResult() {
assertEquals("A0", sql().from(product).orderBy(product.name.asc())
.select(product.name).fetchFirst());
}
@Test
public void singleResult_with_array() {
assertEquals("A0", sql().from(product).orderBy(product.name.asc())
.select(new Expression<?>[]{product.name}).fetchFirst().get(product.name));
}
@Test
public void startsWith_count() {
assertEquals(10L, sql().from(product).where(product.name.startsWith("A")).fetchCount());
assertEquals(10L, sql().from(product).where(product.name.startsWith("B")).fetchCount());
assertEquals(10L, sql().from(product).where(product.name.startsWith("C")).fetchCount());
}
@Test
public void eq_count() {
for (int i = 0; i < 10; i++) {
assertEquals(1L, sql().from(product).where(product.name.eq("A" + i)).fetchCount());
assertEquals(1L, sql().from(product).where(product.name.eq("B" + i)).fetchCount());
assertEquals(1L, sql().from(product).where(product.name.eq("C" + i)).fetchCount());
}
}
@Test
public void scalarQueries() {
BooleanExpression filter = product.name.startsWith("A");
// fetchCount
assertEquals(10L, sql().from(product).where(filter).fetchCount());
// countDistinct
assertEquals(10L, sql().from(product).where(filter).distinct().fetchCount());
// fetch
assertEquals(10, sql().from(product).where(filter).select(product.name).fetch().size());
// fetch with limit
assertEquals(3, sql().from(product).limit(3).select(product.name).fetch().size());
// fetch with offset
// assertEquals(7, sql().from(product).offset(3).fetch(product.name).size());
// fetch with limit and offset
assertEquals(3, sql().from(product).offset(3).limit(3).select(product.name).fetch().size());
// fetch multiple
for (Tuple row : sql().from(product).select(product.productId, product.name, product.amount).fetch()) {
assertNotNull(row.get(0, Object.class));
assertNotNull(row.get(1, Object.class));
assertNotNull(row.get(2, Object.class));
}
// fetchResults
QueryResults<String> results = sql().from(product).limit(3).select(product.name).fetchResults();
assertEquals(3, results.getResults().size());
assertEquals(30L, results.getTotal());
}
@Ignore
@Test
@SuppressWarnings("unchecked")
public void union() throws SQLException {
SubQueryExpression<Integer> sq1 = sql().from(product).select(product.amount.max());
SubQueryExpression<Integer> sq2 = sql().from(product).select(product.amount.min());
List<Integer> list = sql().union(sq1, sq2).list();
assertFalse(list.isEmpty());
}
@Ignore
@Test
@SuppressWarnings("unchecked")
public void union_all() {
SubQueryExpression<Integer> sq1 = sql().from(product).select(product.amount.max());
SubQueryExpression<Integer> sq2 = sql().from(product).select(product.amount.min());
List<Integer> list = sql().unionAll(sq1, sq2).list();
assertFalse(list.isEmpty());
}
@Test
public void entityProjections() {
List<Product> products = sql()
.from(product)
.select(Projections.constructor(Product.class,
product.name, product.description, product.price, product.amount)).fetch();
assertEquals(30, products.size());
for (Product p : products) {
assertNotNull(p.getName());
assertNotNull(p.getDescription());
assertNotNull(p.getPrice());
assertNotNull(p.getAmount());
}
}
@BeforeClass
public static void doPersist() {
List<Object> entities = Lists.newArrayList();
for (int i = 0; i < 10; i++) {
entities.add(new Product("C" + i, "F", 200.00, 2));
entities.add(new Product("B" + i, "E", 400.00, 4));
entities.add(new Product("A" + i, "D", 600.00, 6));
}
doPersist(entities);
}
}