src/de/fhswf/in/inf/se/projektthemenvergabe/model/Student.java


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package de.fhswf.in.inf.se.projektthemenvergabe.model;

import javafx.beans.Observable;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.util.Callback;

/**
 * 
 * Class Student to represents data.
 *
 * @author Dina-Marie Hanxleden & Stefan Suhren
 * @version 1.0
 */
public class Student
{
   private StringProperty vorname = new SimpleStringProperty("");

   private StringProperty nachname = new SimpleStringProperty("");

   private IntegerProperty matrikelnummer = new SimpleIntegerProperty(0);

   private ObjectProperty<Projekt> projekt = new SimpleObjectProperty<>();

   private int oldMatrikelnummer = 0;

   /**
    * Generates an extractor that fires when a property of a list value
    * changes.
    *
    * @return The extractor.
    */
   public static Callback<Student, Observable[]> extractor()
   {
      return student -> new Observable[] { student.matrikelnummerProperty(),
            student.vornameProperty(), student.nachnameProperty(),
            student.projektProperty() };
   }

   /**
    * Constructor of {@link Student}.
    *
    * @param matrikelnummer
    *           Matrikelnummer of the Student.
    */
   public Student(int matrikelnummer)
   {
      this.matrikelnummer.set(matrikelnummer);
      oldMatrikelnummer = matrikelnummer;
   }

   /**
    * 
    * Getter for the property vorname.
    *
    * @return Returns the property vorname
    */
   public final StringProperty vornameProperty()
   {
      return this.vorname;
   }

   /**
    * 
    * Getter for vorname.
    *
    * @return Returns the vorname
    */
   public final String getVorname()
   {
      return this.vornameProperty().get();
   }

   /**
    * 
    * Setter for vorname.
    *
    * @param vorname
    */
   public final void setVorname(final String vorname)
   {
      this.vornameProperty().set(vorname);
   }

   /**
    * 
    * Getter for the property nachname.
    *
    * @return Returns the property nachname
    */
   public final StringProperty nachnameProperty()
   {
      return this.nachname;
   }

   /**
    * 
    * Getter for nachname.
    *
    * @return Returns the nachname
    */
   public final String getNachname()
   {
      return this.nachnameProperty().get();
   }

   /**
    * 
    * Setter for nachname.
    *
    * @param nachname
    */
   public final void setNachname(final String nachname)
   {
      this.nachnameProperty().set(nachname);
   }

   /**
    * 
    * Getter for the property matrikelnummer.
    *
    * @return Returns the property matrikelnummer
    */
   public final IntegerProperty matrikelnummerProperty()
   {
      return this.matrikelnummer;
   }

   /**
    * 
    * Getter for matrikelnummer.
    *
    * @return Returns the matrikelnummer
    */
   public final int getMatrikelnummer()
   {
      return this.matrikelnummerProperty().get();
   }

   /**
    * 
    * Setter for matrikelnummer.
    *
    * @param matrikelnummer
    */
   public final void setMatrikelnummer(final int matrikelnummer)
   {
      this.matrikelnummerProperty().set(matrikelnummer);
   }

   /**
    * Getter for property projekt.
    *
    * @return Returns the projekt.
    */
   public ObjectProperty<Projekt> projektProperty()
   {
      return projekt;
   }

   /**
    * 
    * Set the Projekt for Student.
    *
    * @param projekt
    */
   public void setProjekt(Projekt projekt)
   {
      if (this.projekt.get() == null || !this.projekt.get().equals(projekt))
      {
         if (this.projekt.get() != null)
         {
            this.projekt.get().removeStudent(this);
         }

         this.projekt.set(projekt);

         if (projekt != null)
         {
            projekt.addStudent(this);
         }
      }
   }

   /**
    * 
    * Getter for Projekt.
    *
    * @return Returns The Projekt of the student
    */
   public Projekt getProjekt()
   {
      return this.projekt.get();
   }

   /*
    * (non-Javadoc)
    * 
    * @see java.lang.Object#toString()
    */
   @Override
   public String toString()
   {
      return String.valueOf(matrikelnummer.get());
   }

   /*
    * (non-Javadoc)
    * 
    * @see java.lang.Object#equals(java.lang.Object)
    */
   @Override
   public boolean equals(Object obj)
   {
      if (!(obj instanceof Student))
      {
         return false;
      }

      return ((Student) obj).matrikelnummer.get() == matrikelnummer.get();
   }

   /**
    * Get the previous matrikel number of this Student.
    *
    */
   public int getOldMatrikelnummer()
   {
      int tmp = oldMatrikelnummer;
      oldMatrikelnummer = matrikelnummer.get();

      return tmp;
   }
}