package jaxbTester;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;


public class Main {

    private static final String DATABASE = "./database.xml";

    public static void main(String[] args) throws JAXBException, IOException {

        ArrayList<Student> studentList = new ArrayList<Student>();

        Student student1 = new Student();
        student1.setLastName("Langer");
        student1.setFirstName("Heiner");
        student1.setMat("8200896");
        student1.setStud("Informatik");
        student1.setEmail("heiner.langer@gmail.com");
        studentList.add(student1);

        Student student2 = new Student();
        student2.setLastName("Hoefer");
        student2.setFirstName("Hanna");
        student2.setMat("21000988");
        student2.setStud("Elektrotechnik");
        student2.setEmail("hanna.hoefer@gmail.com");

        studentList.add(student2);

        StudentDB studentdb = new StudentDB();
        studentdb.setStudentsList(studentList);

        // create JAXB context and instantiate marshaller
        JAXBContext context = JAXBContext.newInstance(StudentDB.class);
        Marshaller m = context.createMarshaller();
        m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
        m.marshal(studentdb, System.out);

        Writer w = null;
        try {
            w = new FileWriter(DATABASE);
            m.marshal(studentdb, w);
        } finally {
            try {
                w.close();
            } catch (Exception e) {
            }
        }

        // get variables from our xml file, created before
        System.out.println();
        System.out.println("Output from our XML File: ");
        Unmarshaller um = context.createUnmarshaller();
        StudentDB studentdb2 = (StudentDB) um.unmarshal(new FileReader(
                DATABASE));

        for (int i = 0; i < studentdb2.getStudentsList().toArray().length; i++) {
            System.out.println("Student " + (i + 1) + ": "
                    + studentdb2.getStudentsList().get(i).getLastName() + " "
                    + studentdb2.getStudentsList().get(i).getFirstName()+ " "
                    + studentdb2.getStudentsList().get(i).getMat() + " "
                    + studentdb2.getStudentsList().get(i).getStud() + " "
                    + studentdb2.getStudentsList().get(i).getEmail() + "\n");
        }

    }
}

#####################################################################################
#####################################################################################
#####################################################################################
package jaxbTester;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;


public class Main {

    private static final String DATABASE = "./database.xml";

    public static void main(String[] args) throws JAXBException, IOException {

        ArrayList<Student> studentList = new ArrayList<Student>();

        Student student1 = new Student();
        student1.setLastName("Langer");
        student1.setFirstName("Heiner");
        student1.setMat("8200896");
        student1.setStud("Informatik");
        student1.setEmail("heiner.langer@gmail.com");
        studentList.add(student1);

        Student student2 = new Student();
        student2.setLastName("Hoefer");
        student2.setFirstName("Hanna");
        student2.setMat("21000988");
        student2.setStud("Elektrotechnik");
        student2.setEmail("hanna.hoefer@gmail.com");

        studentList.add(student2);

        StudentDB studentdb = new StudentDB();
        studentdb.setStudentsList(studentList);

        // create JAXB context and instantiate marshaller
        JAXBContext context = JAXBContext.newInstance(StudentDB.class);
        Marshaller m = context.createMarshaller();
        m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
        m.marshal(studentdb, System.out);

        Writer w = null;
        try {
            w = new FileWriter(DATABASE);
            m.marshal(studentdb, w);
        } finally {
            try {
                w.close();
            } catch (Exception e) {
            }
        }

        // get variables from our xml file, created before
        System.out.println();
        System.out.println("Output from our XML File: ");
        Unmarshaller um = context.createUnmarshaller();
        StudentDB studentdb2 = (StudentDB) um.unmarshal(new FileReader(
                DATABASE));

        for (int i = 0; i < studentdb2.getStudentsList().toArray().length; i++) {
            System.out.println("Student " + (i + 1) + ": "
                    + studentdb2.getStudentsList().get(i).getLastName() + " "
                    + studentdb2.getStudentsList().get(i).getFirstName()+ " "
                    + studentdb2.getStudentsList().get(i).getMat() + " "
                    + studentdb2.getStudentsList().get(i).getStud() + " "
                    + studentdb2.getStudentsList().get(i).getEmail() + "\n");
        }

    }
}

############################################################################
############################################################################
############################################################################

package jaxbTester;
import java.util.ArrayList;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(namespace = "wba.gruppe05.org")
public class StudentDB {

    // XmLElementWrapper generates a wrapper element around XML representation
    @XmlElementWrapper(name = "studentDB")
    // XmlElement sets the name of the entities
    @XmlElement(name = "Student")
    private ArrayList<Student> studentList;


    public void setStudentsList(ArrayList<Student> studentList) {
        this.studentList = studentList;
    }

    public ArrayList<Student> getStudentsList() {
        return studentList;
    }
}