diff --git a/app/src/main/java/org/deke/risk/riskahead/helper/TextValidator.java b/app/src/main/java/org/deke/risk/riskahead/helper/TextValidator.java
new file mode 100644
index 0000000..96d9aac
--- /dev/null
+++ b/app/src/main/java/org/deke/risk/riskahead/helper/TextValidator.java
@@ -0,0 +1,34 @@
+package org.deke.risk.riskahead.helper;
+
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.widget.TextView;
+
+/**
+ * Created by Dennis on 17.11.2015.
+ */
+public abstract class TextValidator implements TextWatcher {
+    private final TextView textView;
+
+    public TextValidator(TextView textView) {
+        this.textView = textView;
+    }
+
+    public abstract void validate(TextView textView, String text);
+
+    @Override
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+
+    }
+
+    @Override
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+
+    }
+
+    @Override
+    public void afterTextChanged(Editable s) {
+        String text = textView.getText().toString();
+        validate(textView, text);
+    }
+}