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[#1811] Don't generate root for intermediate from node of correlated …
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...suite/src/test/java/com/blazebit/persistence/view/testsuite/limit/LimitOneToManyTest.java
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| /* | ||
| * Copyright 2014 - 2023 Blazebit. | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package com.blazebit.persistence.view.testsuite.limit; | ||
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| import com.blazebit.persistence.PaginatedCriteriaBuilder; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoDatanucleus; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoEclipselink; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoH2; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoHibernate42; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoHibernate43; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoHibernate50; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoHibernate51; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoMySQLOld; | ||
| import com.blazebit.persistence.testsuite.base.jpa.category.NoOpenJPA; | ||
| import com.blazebit.persistence.testsuite.entity.Document; | ||
| import com.blazebit.persistence.testsuite.entity.Person; | ||
| import com.blazebit.persistence.testsuite.tx.TxVoidWork; | ||
| import com.blazebit.persistence.view.ConfigurationProperties; | ||
| import com.blazebit.persistence.view.EntityView; | ||
| import com.blazebit.persistence.view.EntityViewManager; | ||
| import com.blazebit.persistence.view.EntityViewSetting; | ||
| import com.blazebit.persistence.view.IdMapping; | ||
| import com.blazebit.persistence.view.Limit; | ||
| import com.blazebit.persistence.view.Mapping; | ||
| import com.blazebit.persistence.view.testsuite.AbstractEntityViewTest; | ||
| import com.blazebit.persistence.view.testsuite.limit.model.DocumentLimitView; | ||
| import com.blazebit.persistence.view.testsuite.limit.model.PersonLimitJoinExpressionView; | ||
| import com.blazebit.persistence.view.testsuite.limit.model.PersonLimitJoinView; | ||
| import com.blazebit.persistence.view.testsuite.limit.model.PersonLimitMultisetView; | ||
| import com.blazebit.persistence.view.testsuite.limit.model.PersonLimitSelectView; | ||
| import com.blazebit.persistence.view.testsuite.limit.model.PersonLimitSubselectView; | ||
| import com.blazebit.persistence.view.testsuite.limit.model.PersonLimitView; | ||
| import org.junit.Test; | ||
| import org.junit.experimental.categories.Category; | ||
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| import javax.persistence.EntityManager; | ||
| import java.util.List; | ||
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| import static org.junit.Assert.assertEquals; | ||
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| /** | ||
| * | ||
| * @author Christian Beikov | ||
| * @since 1.5.0 | ||
| */ | ||
| public class LimitOneToManyTest extends AbstractEntityViewTest { | ||
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| @Override | ||
| public void setUpOnce() { | ||
| cleanDatabase(); | ||
| transactional(new TxVoidWork() { | ||
| @Override | ||
| public void work(EntityManager em) { | ||
| Person o1 = new Person("pers1"); | ||
| Document doc1 = new Document("doc1", o1); | ||
| doc1.setAge(10); | ||
| Document doc2 = new Document("doc2", o1); | ||
| doc2.setAge(5); | ||
| Document doc3 = new Document("doc3", o1); | ||
| doc3.setAge(10); | ||
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| em.persist(o1); | ||
| em.persist(doc1); | ||
| em.persist(doc2); | ||
| em.persist(doc3); | ||
| } | ||
| }); | ||
| } | ||
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| @Test | ||
| @Category({ NoMySQLOld.class, NoHibernate42.class, NoHibernate43.class, NoHibernate50.class, NoHibernate51.class, NoEclipselink.class, NoDatanucleus.class, NoOpenJPA.class }) | ||
| // We need a left entity join for this so Hibernate < 5.1 can't be used | ||
| // MySQL before 8 didn't support lateral and also don't support correlated LIMIT subqueries in quantified predicates | ||
| // EclipseLink doesn't support subqueries in functions which is required for LIMIT | ||
| // Datanucleus fails because of a NPE? | ||
| // OpenJPA has no function support | ||
| public void testLimitJoin() { | ||
| EntityViewManager evm = build(SimplePersonView.class, PersonView.class); | ||
| PaginatedCriteriaBuilder<PersonView> paginatedCriteriaBuilder = evm.applySetting( | ||
| EntityViewSetting.create(PersonView.class, 0, 1), | ||
| cbf.create(em, Person.class, "p").orderByDesc("p.id") | ||
| ); | ||
| List<? extends PersonView> list = paginatedCriteriaBuilder.getResultList(); | ||
| assertEquals(1, list.size()); | ||
| // assertEquals(1, list.get(0).getOwnedDocuments().size()); | ||
| // assertEquals("doc2", list.get(0).getOwnedDocuments().get(0).getName()); | ||
| } | ||
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| @EntityView(Person.class) | ||
| interface SimplePersonView { | ||
| @IdMapping | ||
| Long getId(); | ||
| } | ||
|
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| @EntityView(Person.class) | ||
| interface PersonView extends SimplePersonView { | ||
| @Mapping("partnerDocument.contacts") | ||
| @Limit(limit = "1", order = "id desc") | ||
| SimplePersonView getBiggest(); | ||
|
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| } | ||
| } |