Following example shows how to use JPQL BETWEEN keyword to apply a range of values in WHERE clause.
Example
Entity
@Entity
public class Employee {
@Id
@GeneratedValue
private long id;
private String name;
private Timestamp joinDate;
private long salary;
.............
}
Using BETWEEN expression
public class ExampleMain {
private static EntityManagerFactory entityManagerFactory =
Persistence.createEntityManagerFactory("example-unit");
public static void main(String[] args) {
try {
persistEmployees();
findEmployeeBySalary();
findEmployeeByJoinDate();
//setting parameter
findEmployeeByJoinDate2();
//not between
findEmployeeByJoinDate3();
} finally {
entityManagerFactory.close();
}
}
public static void persistEmployees() {
Employee employee1 = Employee.create("Diana", 3000, LocalDate.of(1999, 11, 15));
Employee employee2 = Employee.create("Rose", 4000, LocalDate.of(2011, 5, 1));
Employee employee3 = Employee.create("Denise", 1500, LocalDate.of(2006, 1, 10));
Employee employee4 = Employee.create("Mike", 2000, LocalDate.of(2015, 8, 20));
EntityManager em = entityManagerFactory.createEntityManager();
em.getTransaction().begin();
em.persist(employee1);
em.persist(employee2);
em.persist(employee3);
em.persist(employee4);
em.getTransaction().commit();
em.close();
}
private static void findEmployeeBySalary() {
System.out.println("-- Employee with salary BETWEEN 2000 and 4000 --");
EntityManager em = entityManagerFactory.createEntityManager();
Query query = em.createQuery(
"SELECT e FROM Employee e WHERE e.salary BETWEEN 2000L AND 4000L order by e.salary");
List<Employee> resultList = query.getResultList();
resultList.forEach(System.out::println);
em.close();
}
private static void findEmployeeByJoinDate() {
System.out.println("-- Employee with join date BETWEEN '1990-01-01' and '2010-05-01' --");
EntityManager em = entityManagerFactory.createEntityManager();
Query query = em.createQuery(
"SELECT e FROM Employee e WHERE e.joinDate BETWEEN '1990-01-01' AND '2010-05-01' order "
+ "by e.joinDate");
List<Employee> resultList = query.getResultList();
resultList.forEach(System.out::println);
em.close();
}
private static void findEmployeeByJoinDate2() {
System.out.println("-- Employee with join date BETWEEN '2005-01-01' and '2018-01-01' --");
EntityManager em = entityManagerFactory.createEntityManager();
Query query = em.createQuery(
"SELECT e FROM Employee e WHERE e.joinDate BETWEEN :startDate AND :endDate order "
+ "by e.joinDate");
query.setParameter("startDate", localToTimeStamp(LocalDate.of(2005,1,1)));
query.setParameter("endDate", localToTimeStamp(LocalDate.of(2018,1,1)));
List<Employee> resultList = query.getResultList();
resultList.forEach(System.out::println);
em.close();
}
private static void findEmployeeByJoinDate3() {
System.out.println("-- Employee with join date NOT BETWEEN'2005-01-01' and '2018-01-01' --");
EntityManager em = entityManagerFactory.createEntityManager();
Query query = em.createQuery(
"SELECT e FROM Employee e WHERE e.joinDate NOT BETWEEN :startDate AND :endDate order "
+ "by e.joinDate");
query.setParameter("startDate", localToTimeStamp(LocalDate.of(2005,1,1)));
query.setParameter("endDate", localToTimeStamp(LocalDate.of(2018,1,1)));
List<Employee> resultList = query.getResultList();
resultList.forEach(System.out::println);
em.close();
}
private static Timestamp localToTimeStamp(LocalDate date){
return Timestamp.from(date.atStartOfDay().toInstant(ZoneOffset.UTC));
}
} -- Employee with salary BETWEEN 2000 and 4000 -- Employee{id=4, name='Mike', joinDate=2015-08-19 19:00:00.0, salary=2000} Employee{id=1, name='Diana', joinDate=1999-11-14 18:00:00.0, salary=3000} Employee{id=2, name='Rose', joinDate=2011-04-30 19:00:00.0, salary=4000} -- Employee with join date BETWEEN '1990-01-01' and '2010-05-01' -- Employee{id=1, name='Diana', joinDate=1999-11-14 18:00:00.0, salary=3000} Employee{id=3, name='Denise', joinDate=2006-01-09 18:00:00.0, salary=1500} -- Employee with join date BETWEEN '2005-01-01' and '2018-01-01' -- Employee{id=3, name='Denise', joinDate=2006-01-09 18:00:00.0, salary=1500} Employee{id=2, name='Rose', joinDate=2011-04-30 19:00:00.0, salary=4000} Employee{id=4, name='Mike', joinDate=2015-08-19 19:00:00.0, salary=2000} -- Employee with join date NOT BETWEEN'2005-01-01' and '2018-01-01' -- Employee{id=1, name='Diana', joinDate=1999-11-14 18:00:00.0, salary=3000}
Example ProjectDependencies and Technologies Used: - h2 1.4.197: H2 Database Engine.
- hibernate-core 5.2.13.Final: The core O/RM functionality as provided by Hibernate.
Implements javax.persistence:javax.persistence-api version 2.1 - JDK 1.8
- Maven 3.3.9
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