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Merge branch 'eugenmaster'

This commit is contained in:
Marcos Lopez Gonzalez 2019-06-20 19:33:03 +02:00
parent 0927be728a 37942a25b6
commit ece6d5c35c
5 changed files with 269 additions and 0 deletions
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57
persistence-modules/java-jpa/pom.xml
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@ -19,6 +19,11 @@
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-jpamodelgen</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
@ -47,6 +52,58 @@
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<compilerArgument>-proc:none</compilerArgument>
</configuration>
</plugin>
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>3.3.3</version>
<executions>
<execution>
<id>process</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<outputDirectory>target/metamodel</outputDirectory>
<processors>
<processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
</processors>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>target/metamodel</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<hibernate.version>5.4.0.Final</hibernate.version>
<eclipselink.version>2.7.4-RC1</eclipselink.version>

79
persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/queryparams/Employee.java Normal file
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@ -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;
}
}

22
persistence-modules/java-jpa/src/main/resources/META-INF/persistence.xml
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@ -224,4 +224,26 @@
value="products_jpa.sql" />
</properties>
</persistence-unit>
<persistence-unit name="jpa-h2-queryparams" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<class>com.baeldung.jpa.queryparams.Employee</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.jdbc.driver"
value="org.h2.Driver" />
<property name="javax.persistence.jdbc.url"
value="jdbc:h2:mem:test" />
<property name="javax.persistence.jdbc.user" value="sa" />
<property name="javax.persistence.jdbc.password" value="" />
<property name="hibernate.dialect"
value="org.hibernate.dialect.H2Dialect" />
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
<property name="show_sql" value="true" />
<property name="hibernate.temp.use_jdbc_metadata_defaults"
value="false" />
<property name="javax.persistence.sql-load-script-source"
value="employees2.sql" />
</properties>
</persistence-unit>
</persistence>

109
persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/queryparams/JPAQueryParamsUnitTest.java Normal file
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@ -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<Employee> 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<Employee> query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber IN (?1)", Employee.class);
List<String> empNumbers = Arrays.asList("A123", "A124");
List<Employee> 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<Employee> 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<Employee> query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber IN (:numbers)", Employee.class);
List<String> empNumbers = Arrays.asList("A123", "A124");
List<Employee> 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<Employee> 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<Employee> 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<Employee> cQuery = cb.createQuery(Employee.class);
Root<Employee> c = cQuery.from(Employee.class);
ParameterExpression<String> paramEmpNumber = cb.parameter(String.class);
cQuery.select(c)
.where(cb.equal(c.get(Employee_.empNumber), paramEmpNumber));
TypedQuery<Employee> 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<Employee> query = entityManager.createQuery("SELECT e FROM Employee e WHERE e.empNumber = '" + empNumber + "'", Employee.class);
Employee employee = query.getSingleResult();
Assert.assertNotNull("Employee not found!", employee);
}
}

2
persistence-modules/java-jpa/src/test/resources/employees2.sql Normal file
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@ -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);