All Hibernate Criteria and HQL Tests
This commit is contained in:
egmp777
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5dc96ceda4
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package org.baeldung.persistence.service;
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import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
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import org.baeldung.persistence.model.Foo;
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import org.baeldung.persistence.service.IFooService;
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import org.baeldung.spring.PersistenceConfig;
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import org.junit.Ignore;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.dao.DataAccessException;
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import org.springframework.dao.DataIntegrityViolationException;
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import org.springframework.dao.InvalidDataAccessApiUsageException;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
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import org.springframework.test.context.support.AnnotationConfigContextLoader;
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@RunWith(SpringJUnit4ClassRunner.class)
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@ContextConfiguration(classes = { PersistenceConfig.class }, loader = AnnotationConfigContextLoader.class)
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package com.cc.code.samples.hibernate.sorting;
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import static org.junit.Assert.*;
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import org.junit.Before;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.SortedSet;
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import java.util.TreeSet;
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import javax.persistence.EntityManager;
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import javax.persistence.EntityManagerFactory;
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import javax.persistence.EntityTransaction;
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import javax.persistence.Persistence;
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import org.hibernate.Criteria;
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import org.hibernate.NullPrecedence;
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import org.hibernate.Query;
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import org.hibernate.Session;
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import org.hibernate.SessionFactory;
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import org.hibernate.Transaction;
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import org.hibernate.annotations.common.util.StringHelper;
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import org.hibernate.cfg.Configuration;
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import org.hibernate.criterion.Order;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import com.cc.example.hibernate.Foo;
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import com.cc.example.hibernate.Bar;
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public class FooSortingServiceTest {
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@Test
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public final void whenHQlSortingByOneAttribute_thenPrintSortedResults() {
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Session sess = null;
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List<Foo> fooList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Foo f ORDER BY f.name";
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Query query = sess.createQuery(hql);
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fooList = query.list();
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for(Foo foo: fooList){
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System.out.println(
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"Name: " + foo.getName()
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+ ", Id: " + foo.getId()
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);
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}
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenHQlSortingByOneAttribute_andOrderDirection_thenPrintSortedResults() {
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Session sess = null;
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List<Foo> fooList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Foo f ORDER BY f.name ASC";
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Query query = sess.createQuery(hql);
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fooList = query.list();
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for(Foo foo: fooList){
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System.out.println(
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"Name: " + foo.getName()
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+ ", Id: " + foo.getId()
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);
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}
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenHQlSortingByMultipleAttributes_thenSortedResults() {
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Session sess = null;
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List<Foo> fooList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Foo f ORDER BY f.name, f.id";
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Query query = sess.createQuery(hql);
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fooList = query.list();
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for(Foo foo: fooList){
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System.out.println(
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"Name: " + foo.getName()
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+ ", Id: " + foo.getId()
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);
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}
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenHQlSortingByMultipleAttributes_andOrderDirection_thenPrintSortedOrderedResults() {
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Session sess = null;
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List<Foo> fooList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Foo f ORDER BY f.name DESC, f.id ASC";
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Query query = sess.createQuery(hql);
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fooList = query.list();
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for(Foo foo: fooList){
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System.out.println(
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"Name: " + foo.getName()
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+ ", Id: " + foo.getId()
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);
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}
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenCriteriaSortingByOneAttr_thenPrintSortedResults() {
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Session sess = null;
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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List<Foo> fooList = new ArrayList();
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try{
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sess.beginTransaction();
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Criteria criteria = sess.createCriteria(Foo.class, "FOO");
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criteria.addOrder(Order.asc("id"));
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fooList = criteria.list();
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assertEquals(1,fooList.get(0).getId());
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assertEquals(100,fooList.get(fooList.toArray().length-1).getId());
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for(Foo foo: fooList){
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System.out.println(
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"Id: " + foo.getId()
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+ ", FirstName: " + foo.getName()
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);
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}
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sess.getTransaction().commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenCriteriaSortingByMultipAttr_thenSortedResults() {
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Session sess = null;
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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List<Foo> fooList = new ArrayList();
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try{
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sess.beginTransaction();
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Criteria criteria = sess.createCriteria(Foo.class, "FOO");
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criteria.addOrder(Order.asc("name"));
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criteria.addOrder(Order.asc("id"));
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fooList = criteria.list();
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for(Foo foo: fooList){
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System.out.println(
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"Id: " + foo.getId()
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+ ", FirstName: " + foo.getName()
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);
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}
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sess.getTransaction().commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenCriteriaSortingStringNullsLastAsc_thenNullsLast() {
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Session sess = null;
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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List<Foo> fooList = new ArrayList();
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try{
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sess.beginTransaction();
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Criteria criteria = sess.createCriteria(Foo.class, "FOO");
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criteria.addOrder(Order.asc("name").nulls(NullPrecedence.LAST));
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fooList = criteria.list();
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assertNull(fooList.get(fooList.toArray().length-1).getName());
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for(Foo foo: fooList){
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System.out.println(
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"Id: " + foo.getId()
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+ ", FirstName: " + foo.getName()
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);
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}
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sess.getTransaction().commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenCriteriaSortingStringNullsFirstDesc_thenNullsFirst() {
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Session sess = null;
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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List<Foo> fooList = new ArrayList();
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try{
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sess.beginTransaction();
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Criteria criteria = sess.createCriteria(Foo.class, "FOO");
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criteria.addOrder(Order.desc("name").nulls(NullPrecedence.FIRST));
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fooList = criteria.list();
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assertNull(fooList.get(0).getName());
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for(Foo foo: fooList){
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System.out.println(
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"Id: " + foo.getId()
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+ ", FirstName: " + foo.getName()
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);
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}
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sess.getTransaction().commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenHQlSortingByStringNullLast_thenLastNull() {
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Session sess = null;
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List<Foo> fooList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Foo f ORDER BY f.name NULLS LAST";
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Query query = sess.createQuery(hql);
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fooList = query.list();
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assertNull(fooList.get(fooList.toArray().length-1).getName());
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for(Foo foo: fooList){
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System.out.println(
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"Name: " + foo.getName()
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+ ", Id: " + foo.getId()
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);
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}
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenSortingBars_thenBarsWithSortedFoos(){
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Session sess = null;
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Set <Foo> fooList = new TreeSet();
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List <Bar> barList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Bar b ORDER BY b.id";
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Query query = sess.createQuery(hql);
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barList = query.list();
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for(Bar bar:barList){
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System.out.println("Bar Id:"+bar.getId());
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for(Foo foo:bar.getFooList()){
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System.out.println("FooName:"+foo.getName());
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}
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}
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenSortingPrimitiveNulls_thenException(){
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Session sess = null;
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List <Foo> fooList = new ArrayList();
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List <Bar> barList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Foo f ORDER BY f.idx";
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Query query = sess.createQuery(hql);
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boolean thrown = false;
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try {
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fooList = criteria.list();
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} catch (org.hibernate.PropertyAccessException e) {
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thrown = true;
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}
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assertTrue(thrown);
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenSortingStringNullsLast_thenReturnNullsLast(){
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Session sess = null;
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List <Foo> fooList = new ArrayList();
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List <Bar> barList = new ArrayList();
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try{
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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String hql = "FROM Foo f ORDER BY f.name NULLS LAST";
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Query query = sess.createQuery(hql);
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fooList = query.list();
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assertNull(fooList.get(fooList.toArray().length-1).getName());
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for(Foo foo:fooList){
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System.out.println("FooIDX:"+foo.getName());
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}
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Transaction tr = sess.beginTransaction();
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tr.commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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@Test
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public final void whenNullPrimitiveValueCriteriaSortingByMultipAttr_thenException() {
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Session sess = null;
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SessionFactory sf = new Configuration().
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configure().buildSessionFactory();
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sess = sf.openSession();
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List<Foo> fooList = new ArrayList();
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try{
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sess.beginTransaction();
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Criteria criteria = sess.createCriteria(Foo.class, "FOO");
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criteria.addOrder(Order.desc("name").nulls(NullPrecedence.FIRST));
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criteria.addOrder(Order.asc("idx"));
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boolean thrown = false;
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try {
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fooList = criteria.list();
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} catch (org.hibernate.PropertyAccessException e) {
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thrown = true;
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}
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assertTrue(thrown);
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sess.getTransaction().commit();
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}catch(Exception ex){
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ex.printStackTrace();
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}finally{
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if(sess != null){
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sess.close();
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}
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}
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}
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}
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}
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