diff --git a/persistence-modules/hibernate5/src/main/java/com/baeldung/hibernate/findall/FindAll.java b/persistence-modules/hibernate5/src/main/java/com/baeldung/hibernate/findall/FindAll.java new file mode 100644 index 0000000000..cc0c234df0 --- /dev/null +++ b/persistence-modules/hibernate5/src/main/java/com/baeldung/hibernate/findall/FindAll.java @@ -0,0 +1,35 @@ +package com.baeldung.hibernate.findall; + +import java.util.List; + +import javax.persistence.TypedQuery; +import javax.persistence.criteria.CriteriaBuilder; +import javax.persistence.criteria.CriteriaQuery; +import javax.persistence.criteria.Root; + +import org.hibernate.Session; + +import com.baeldung.hibernate.pojo.Student; + +public class FindAll { + + private Session session; + + public FindAll(Session session) { + super(); + this.session = session; + } + + public List findAllWithJpql() { + return session.createQuery("SELECT a FROM Student a", Student.class).getResultList(); + } + + public List findAllWithCriteriaQuery() { + CriteriaBuilder cb = session.getCriteriaBuilder(); + CriteriaQuery cq = cb.createQuery(Student.class); + Root rootEntry = cq.from(Student.class); + CriteriaQuery all = cq.select(rootEntry); + TypedQuery allQuery = session.createQuery(all); + return allQuery.getResultList(); + } +} diff --git a/persistence-modules/hibernate5/src/test/java/com/baeldung/hibernate/findall/FindAllUnitTest.java b/persistence-modules/hibernate5/src/test/java/com/baeldung/hibernate/findall/FindAllUnitTest.java new file mode 100644 index 0000000000..8a1b9e9791 --- /dev/null +++ b/persistence-modules/hibernate5/src/test/java/com/baeldung/hibernate/findall/FindAllUnitTest.java @@ -0,0 +1,63 @@ +package com.baeldung.hibernate.findall; + +import static org.junit.Assert.assertEquals; + +import java.io.IOException; +import java.util.List; + +import org.hibernate.Session; +import org.hibernate.Transaction; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; + +import com.baeldung.hibernate.HibernateUtil; +import com.baeldung.hibernate.pojo.Student; + +public class FindAllUnitTest { + + private Session session; + private Transaction transaction; + + private FindAll findAll; + + @Before + public void setUp() throws IOException { + + session = HibernateUtil.getSessionFactory().openSession(); + transaction = session.beginTransaction(); + findAll = new FindAll(session); + + session.createNativeQuery("delete from Student").executeUpdate(); + + Student student1 = new Student(); + session.persist(student1); + + Student student2 = new Student(); + session.persist(student2); + + Student student3 = new Student(); + session.persist(student3); + + transaction.commit(); + transaction = session.beginTransaction(); + } + + @After + public void tearDown() { + transaction.rollback(); + session.close(); + } + + @Test + public void givenCriteriaQuery_WhenFindAll_ThenGetAllPersons() { + List list = findAll.findAllWithCriteriaQuery(); + assertEquals(3, list.size()); + } + + @Test + public void givenJpql_WhenFindAll_ThenGetAllPersons() { + List list = findAll.findAllWithJpql(); + assertEquals(3, list.size()); + } +}