XML und JAXB

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>at.aydin.academy</groupId>
        <artifactId>08xmljaxb-pair</artifactId>
        <version>1.0.0</version>
        <relativePath>../pom.xml</relativePath>
    </parent>
    <artifactId>xml-jaxb-modern</artifactId>
    <packaging>jar</packaging>
    <name>XML/JAXB Modern (jakarta)</name>
    <dependencies>
        <dependency>
            <groupId>jakarta.xml.bind</groupId>
            <artifactId>jakarta.xml.bind-api</artifactId>
            <version>4.0.2</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jaxb</groupId>
            <artifactId>jaxb-runtime</artifactId>
            <version>${jaxb.modern.version}</version>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
            </plugin>

        </plugins>
    </build>
</project>

package at.aydin.lab.xml.modern;

import jakarta.xml.bind.annotation.XmlElement;
import jakarta.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "customer")
public class ModernCustomer {
    private String name;
    private String email;
    public ModernCustomer() {
    }

    public ModernCustomer(String name, String email) {
        this.name = name;
        this.email = email;
    }

    @XmlElement
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @XmlElement
    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }
}

package at.aydin.lab.xml.modern;

import jakarta.xml.bind.JAXBContext;
import jakarta.xml.bind.Marshaller;
import java.io.StringWriter;

// Design Pattern: Mapper
// Zweck: Jakarta JAXB kapselt die XML-Serialisierung hinter einer klaren API.
public final class ModernXmlMapper {
    public String toXml(ModernCustomer customer) throws Exception {
        JAXBContext context = JAXBContext.newInstance(ModernCustomer.class);
        Marshaller marshaller = context.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        StringWriter writer = new StringWriter();
        marshaller.marshal(customer, writer);
        return writer.toString();
    }
}

package at.aydin.lab.xml.modern;

import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;

class ModernXmlMapperTest {
    @Test
    void createsXml() throws Exception {
        assertTrue(new ModernXmlMapper().toXml(new ModernCustomer("Test", "test@example.test")).contains("<name>Test</name>"));
    }
}

package at.aydin.lab.xml.modern;

public final class XmlModernApplication {
    private XmlModernApplication() {
    }

    public static void main(String[] args) throws Exception {
        System.out.println(new ModernXmlMapper().toXml(new ModernCustomer("Aydin", "aydin@example.test")));
    }
}