BAEL-2344 Hibernate Named Query (#5835)
* Added writer * Added implementation and test class * Added more details * Updated tests * Updated code as per review comments * Added test class and one named query * Updated test class * Added update HQL * Added new initialisation script and new queries * Corrected queries * Removed commented code * printf examples Issue: BAEL-2228 * Update README.md * Added implementation and test class * Added more details * Updated tests * Updated code as per review comments * Added test class and one named query * Updated test class * Added update HQL * Added new initialisation script and new queries * Corrected queries * Removed commented code
This commit is contained in:
Priyesh Mashelkar
maibin
parent
a21f82001c
commit
cac62f06ae
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package com.baeldung.hibernate.entities;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.GenerationType;
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import javax.persistence.Id;
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import javax.persistence.ManyToOne;
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@org.hibernate.annotations.NamedQueries({ @org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindByEmployeeNumber", query = "from DeptEmployee where employeeNumber = :employeeNo"),
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@org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindAllByDesgination", query = "from DeptEmployee where designation = :designation"),
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@org.hibernate.annotations.NamedQuery(name = "DeptEmployee_UpdateEmployeeDepartment", query = "Update DeptEmployee set department = :newDepartment where employeeNumber = :employeeNo"),
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@org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindAllByDepartment", query = "from DeptEmployee where department = :department", timeout = 1, fetchSize = 10) })
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@org.hibernate.annotations.NamedNativeQueries({ @org.hibernate.annotations.NamedNativeQuery(name = "DeptEmployee_FindByEmployeeName", query = "select * from deptemployee emp where name=:name", resultClass = DeptEmployee.class),
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@org.hibernate.annotations.NamedNativeQuery(name = "DeptEmployee_UpdateEmployeeDesignation", query = "call UPDATE_EMPLOYEE_DESIGNATION(:employeeNumber, :newDesignation)", resultClass = DeptEmployee.class) })
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@Entity
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public class DeptEmployee {
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@Id
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@GeneratedValue(strategy = GenerationType.SEQUENCE)
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private long id;
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private String employeeNumber;
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private String designation;
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private String name;
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@ManyToOne
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private Department department;
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public DeptEmployee(String name, String employeeNumber, Department department) {
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this.name = name;
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this.employeeNumber = employeeNumber;
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this.department = department;
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}
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public long getId() {
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return id;
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}
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public void setId(long id) {
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this.id = id;
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}
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public String getEmployeeNumber() {
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return employeeNumber;
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}
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public void setEmployeeNumber(String employeeNumber) {
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this.employeeNumber = employeeNumber;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public Department getDepartment() {
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return department;
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}
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public void setDepartment(Department department) {
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this.department = department;
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}
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public String getDesignation() {
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return designation;
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}
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public void setDesignation(String designation) {
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this.designation = designation;
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}
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}
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CREATE ALIAS UPDATE_EMPLOYEE_DESIGNATION AS $$
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import java.sql.CallableStatement;
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import java.sql.Connection;
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import java.sql.SQLException;
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@CODE
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void updateEmployeeDesignation(final Connection conn, final String employeeNumber, final String designation) throws SQLException {
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CallableStatement updateStatement = conn.prepareCall("update deptemployee set designation = '" + designation + "' where employeeNumber = '" + employeeNumber + "'");
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updateStatement.execute();
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}
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$$;
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package com.baeldung.hibernate;
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import java.io.IOException;
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import org.hibernate.Session;
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import org.hibernate.Transaction;
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import org.hibernate.query.NativeQuery;
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import org.hibernate.query.Query;
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import org.junit.After;
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import 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 com.baeldung.hibernate.entities.Department;
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import com.baeldung.hibernate.entities.DeptEmployee;
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public class NamedQueryIntegrationTest {
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private static Session session;
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private Transaction transaction;
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private Long purchaseDeptId;
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@BeforeClass
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public static void setUpClass() throws IOException {
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session = HibernateUtil.getSessionFactory("hibernate-namedquery.properties").openSession();
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}
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@Before
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public void setUp() throws IOException {
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transaction = session.beginTransaction();
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session.createNativeQuery("delete from deptemployee").executeUpdate();
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session.createNativeQuery("delete from department").executeUpdate();
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Department salesDepartment = new Department("Sales");
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Department purchaseDepartment = new Department("Purchase");
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DeptEmployee employee1 = new DeptEmployee("John Wayne", "001", salesDepartment);
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DeptEmployee employee2 = new DeptEmployee("Sarah Vinton", "002", salesDepartment);
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DeptEmployee employee3 = new DeptEmployee("Lisa Carter", "003", salesDepartment);
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session.persist(salesDepartment);
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session.persist(purchaseDepartment);
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purchaseDeptId = purchaseDepartment.getId();
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session.persist(employee1);
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session.persist(employee2);
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session.persist(employee3);
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transaction.commit();
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transaction = session.beginTransaction();
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}
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@After
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public void tearDown() {
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if(transaction.isActive()) {
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transaction.rollback();
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}
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}
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@Test
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public void whenNamedQueryIsCalledUsingCreateNamedQuery_ThenOk() {
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Query<DeptEmployee> query = session.createNamedQuery("DeptEmployee_FindByEmployeeNumber", DeptEmployee.class);
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query.setParameter("employeeNo", "001");
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DeptEmployee result = query.getSingleResult();
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Assert.assertNotNull(result);
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Assert.assertEquals("John Wayne", result.getName());
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}
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@Test
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public void whenNamedNativeQueryIsCalledUsingCreateNamedQuery_ThenOk() {
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Query<DeptEmployee> query = session.createNamedQuery("DeptEmployee_FindByEmployeeName", DeptEmployee.class);
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query.setParameter("name", "John Wayne");
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DeptEmployee result = query.getSingleResult();
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Assert.assertNotNull(result);
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Assert.assertEquals("001", result.getEmployeeNumber());
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}
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@Test
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public void whenNamedNativeQueryIsCalledUsingGetNamedNativeQuery_ThenOk() {
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@SuppressWarnings("rawtypes")
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NativeQuery query = session.getNamedNativeQuery("DeptEmployee_FindByEmployeeName");
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query.setParameter("name", "John Wayne");
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DeptEmployee result = (DeptEmployee) query.getSingleResult();
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Assert.assertNotNull(result);
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Assert.assertEquals("001", result.getEmployeeNumber());
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}
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@Test
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public void whenUpdateQueryIsCalledWithCreateNamedQuery_ThenOk() {
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Query spQuery = session.createNamedQuery("DeptEmployee_UpdateEmployeeDepartment");
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spQuery.setParameter("employeeNo", "001");
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Department newDepartment = session.find(Department.class, purchaseDeptId);
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spQuery.setParameter("newDepartment", newDepartment);
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spQuery.executeUpdate();
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transaction.commit();
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}
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@Test
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public void whenNamedStoredProcedureIsCalledWithCreateNamedQuery_ThenOk() {
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Query spQuery = session.createNamedQuery("DeptEmployee_UpdateEmployeeDesignation");
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spQuery.setParameter("employeeNumber", "002");
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spQuery.setParameter("newDesignation", "Supervisor");
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spQuery.executeUpdate();
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transaction.commit();
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}
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}
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@ -0,0 +1,9 @@
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hibernate.connection.driver_class=org.h2.Driver
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hibernate.connection.url=jdbc:h2:mem:mydb1;DB_CLOSE_DELAY=-1;INIT=RUNSCRIPT FROM 'src/main/resources/init_database.sql'
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hibernate.connection.username=sa
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hibernate.connection.autocommit=true
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jdbc.password=
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hibernate.dialect=org.hibernate.dialect.H2Dialect
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hibernate.show_sql=true
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hibernate.hbm2ddl.auto=create-drop
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@ -1,7 +1,17 @@
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package com.baeldung.hibernate.entities;
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import javax.persistence.*;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.GenerationType;
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import javax.persistence.Id;
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import javax.persistence.ManyToOne;
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@org.hibernate.annotations.NamedQueries({ @org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindByEmployeeNumber", query = "from DeptEmployee where employeeNumber = :employeeNo"),
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@org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindAllByDesgination", query = "from DeptEmployee where designation = :designation"),
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@org.hibernate.annotations.NamedQuery(name = "DeptEmployee_UpdateEmployeeDepartment", query = "Update DeptEmployee set department = :newDepartment where employeeNumber = :employeeNo"),
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@org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindAllByDepartment", query = "from DeptEmployee where department = :department", timeout = 1, fetchSize = 10) })
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@org.hibernate.annotations.NamedNativeQueries({ @org.hibernate.annotations.NamedNativeQuery(name = "DeptEmployee_FindByEmployeeName", query = "select * from deptemployee emp where name=:name", resultClass = DeptEmployee.class),
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@org.hibernate.annotations.NamedNativeQuery(name = "DeptEmployee_UpdateEmployeeDesignation", query = "call UPDATE_EMPLOYEE_DESIGNATION(:employeeNumber, :newDesignation)", resultClass = DeptEmployee.class) })
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@Entity
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public class DeptEmployee {
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@Id
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@ -16,7 +26,7 @@ public class DeptEmployee {
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@ManyToOne
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private Department department;
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public DeptEmployee(String name, String employeeNumber, Department department) {
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this.name = name;
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this.employeeNumber = employeeNumber;
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