diff --git a/persistence-modules/java-jpa/pom.xml b/persistence-modules/java-jpa/pom.xml
index f23040fbdc..51cc401332 100644
--- a/persistence-modules/java-jpa/pom.xml
+++ b/persistence-modules/java-jpa/pom.xml
@@ -19,6 +19,11 @@
hibernate-core
${hibernate.version}
+
+ org.hibernate
+ hibernate-jpamodelgen
+ ${hibernate.version}
+
com.h2database
h2
@@ -47,6 +52,58 @@
+
+
+
+ org.apache.maven.plugins
+ maven-compiler-plugin
+ 3.5.1
+
+ -proc:none
+
+
+
+ org.bsc.maven
+ maven-processor-plugin
+ 3.3.3
+
+
+ process
+
+ process
+
+ generate-sources
+
+ target/metamodel
+
+ org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor
+
+
+
+
+
+
+
+ org.codehaus.mojo
+ build-helper-maven-plugin
+ 3.0.0
+
+
+ add-source
+ generate-sources
+
+ add-source
+
+
+
+ target/metamodel
+
+
+
+
+
+
+
5.4.0.Final
2.7.4-RC1
diff --git a/persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/queryparams/Employee.java b/persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/queryparams/Employee.java
new file mode 100644
index 0000000000..bf3d459530
--- /dev/null
+++ b/persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/queryparams/Employee.java
@@ -0,0 +1,79 @@
+package com.baeldung.jpa.queryparams;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "employees")
+public class Employee {
+
+ /**
+ *
+ */
+ private static final long serialVersionUID = 1L;
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ @Column(name = "id")
+ private Long id;
+
+ @Column(name = "employee_number", unique = true)
+ private String empNumber;
+
+ @Column(name = "employee_name")
+ private String name;
+
+ @Column(name = "employee_age")
+ private int age;
+
+ public Employee() {
+ super();
+ }
+
+ public Employee(Long id, String empNumber) {
+ super();
+ this.id = id;
+ this.empNumber = empNumber;
+ }
+
+ public Long getId() {
+ return id;
+ }
+
+ public void setId(Long id) {
+ this.id = id;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public int getAge() {
+ return age;
+ }
+
+ public void setAge(int age) {
+ this.age = age;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public String getEmpNumber() {
+ return empNumber;
+ }
+
+ public void setEmpNumber(String empNumber) {
+ this.empNumber = empNumber;
+ }
+
+ public static long getSerialversionuid() {
+ return serialVersionUID;
+ }
+
+}
diff --git a/persistence-modules/java-jpa/src/main/resources/META-INF/persistence.xml b/persistence-modules/java-jpa/src/main/resources/META-INF/persistence.xml
index 1f16bee3ba..6a236f0840 100644
--- a/persistence-modules/java-jpa/src/main/resources/META-INF/persistence.xml
+++ b/persistence-modules/java-jpa/src/main/resources/META-INF/persistence.xml
@@ -224,4 +224,26 @@
value="products_jpa.sql" />
+
+
+ org.hibernate.jpa.HibernatePersistenceProvider
+ com.baeldung.jpa.queryparams.Employee
+ true
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/queryparams/JPAQueryParamsUnitTest.java b/persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/queryparams/JPAQueryParamsUnitTest.java
new file mode 100644
index 0000000000..4f320935cf
--- /dev/null
+++ b/persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/queryparams/JPAQueryParamsUnitTest.java
@@ -0,0 +1,109 @@
+package com.baeldung.jpa.queryparams;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+import javax.persistence.TypedQuery;
+import javax.persistence.criteria.CriteriaBuilder;
+import javax.persistence.criteria.CriteriaQuery;
+import javax.persistence.criteria.ParameterExpression;
+import javax.persistence.criteria.Root;
+
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * JPAQueryParamsTest class tests.
+ *
+ * @author gmlopez.mackinnon@gmail.com
+ */
+public class JPAQueryParamsUnitTest {
+
+ private static EntityManager entityManager;
+
+ @BeforeClass
+ public static void setup() {
+ EntityManagerFactory factory = Persistence.createEntityManagerFactory("jpa-h2-queryparams");
+ entityManager = factory.createEntityManager();
+ }
+
+ @Test
+ public void givenEmpNumber_whenUsingPositionalParameter_thenReturnExpectedEmployee() {
+ TypedQuery query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber = ?1", Employee.class);
+ String empNumber = "A123";
+ Employee employee = query.setParameter(1, empNumber)
+ .getSingleResult();
+ Assert.assertNotNull("Employee not found", employee);
+ }
+
+ @Test
+ public void givenEmpNumberList_whenUsingPositionalParameter_thenReturnExpectedEmployee() {
+ TypedQuery query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber IN (?1)", Employee.class);
+ List empNumbers = Arrays.asList("A123", "A124");
+ List employees = query.setParameter(1, empNumbers)
+ .getResultList();
+ Assert.assertNotNull("Employees not found", employees);
+ Assert.assertFalse("Employees not found", employees.isEmpty());
+ }
+
+ @Test
+ public void givenEmpNumber_whenUsingNamedParameter_thenReturnExpectedEmployee() {
+ TypedQuery query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber = :number", Employee.class);
+ String empNumber = "A123";
+ Employee employee = query.setParameter("number", empNumber)
+ .getSingleResult();
+ Assert.assertNotNull("Employee not found", employee);
+ }
+
+ @Test
+ public void givenEmpNumberList_whenUsingNamedParameter_thenReturnExpectedEmployee() {
+ TypedQuery query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber IN (:numbers)", Employee.class);
+ List empNumbers = Arrays.asList("A123", "A124");
+ List employees = query.setParameter("numbers", empNumbers)
+ .getResultList();
+ Assert.assertNotNull("Employees not found", employees);
+ Assert.assertFalse("Employees not found", employees.isEmpty());
+ }
+
+ @Test
+ public void givenEmpNameAndEmpAge_whenUsingTwoNamedParameters_thenReturnExpectedEmployees() {
+ TypedQuery query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.name = :name AND e.age = :empAge", Employee.class);
+ String empName = "John Doe";
+ int empAge = 55;
+ List employees = query.setParameter("name", empName)
+ .setParameter("empAge", empAge)
+ .getResultList();
+ Assert.assertNotNull("Employees not found!", employees);
+ Assert.assertTrue("Employees not found!", !employees.isEmpty());
+ }
+
+ @Test
+ public void givenEmpNumber_whenUsingCriteriaQuery_thenReturnExpectedEmployee() {
+ CriteriaBuilder cb = entityManager.getCriteriaBuilder();
+
+ CriteriaQuery cQuery = cb.createQuery(Employee.class);
+ Root c = cQuery.from(Employee.class);
+ ParameterExpression paramEmpNumber = cb.parameter(String.class);
+ cQuery.select(c)
+ .where(cb.equal(c.get(Employee_.empNumber), paramEmpNumber));
+
+ TypedQuery query = entityManager.createQuery(cQuery);
+ String empNumber = "A123";
+ query.setParameter(paramEmpNumber, empNumber);
+ Employee employee = query.getSingleResult();
+ Assert.assertNotNull("Employee not found!", employee);
+ }
+
+ @Test
+ public void givenEmpNumber_whenUsingLiteral_thenReturnExpectedEmployee() {
+ String empNumber = "A123";
+ TypedQuery query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber = '" + empNumber + "'", Employee.class);
+ Employee employee = query.getSingleResult();
+ Assert.assertNotNull("Employee not found!", employee);
+ }
+
+}
diff --git a/persistence-modules/java-jpa/src/test/resources/employees2.sql b/persistence-modules/java-jpa/src/test/resources/employees2.sql
new file mode 100644
index 0000000000..d3ae46f6a0
--- /dev/null
+++ b/persistence-modules/java-jpa/src/test/resources/employees2.sql
@@ -0,0 +1,2 @@
+INSERT INTO employees (employee_number, employee_name, employee_age) VALUES ('111', 'John Doe', 55);
+INSERT INTO employees (employee_number, employee_name, employee_age) VALUES ('A123', 'John Doe Junior', 25);
\ No newline at end of file