1 files changed, 15 insertions, 0 deletions
diff --git a/src/de/fhswf/in/inf/se/projektthemenvergabe/model/Student.java b/src/de/fhswf/in/inf/se/projektthemenvergabe/model/Student.java
index 7265b94..89c80bb 100644
--- a/src/de/fhswf/in/inf/se/projektthemenvergabe/model/Student.java
+++ b/src/de/fhswf/in/inf/se/projektthemenvergabe/model/Student.java
@@ -1,11 +1,13 @@
 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;
 
 /**
  * 
@@ -25,6 +27,19 @@ public class Student
    private ObjectProperty<Projekt> projekt = new SimpleObjectProperty<>();
 
    /**
+    * 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