--- a/artifacts/src/main/java/org/dive4elements/river/exports/TypeSection.java	Tue Jun 05 19:10:38 2018 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/exports/TypeSection.java	Tue Jun 05 19:21:16 2018 +0200
@@ -123,26 +123,25 @@
     }
 
 
-    public void setBooleanValue(String key, boolean value) {
-        Attribute attr = getAttribute(key);
-        if (attr == null) {
-            attr = new BooleanAttribute(key, value, true);
-            addAttribute(key, attr);
-        }
-        else {
+    protected final void setBooleanValue(String key, boolean value) {
+        final Attribute attr = getAttribute(key);
+        if (attr == null)
+            addAttribute(key, new BooleanAttribute(key, value, true));
+        else 
             attr.setValue(value);
-        }
     }
 
-
-    public Boolean getBooleanValue(String key) {
-        Attribute attr = getAttribute(key);
+    protected final boolean getBooleanValue(final String key, boolean defaultValue) {
+        final Attribute attr = getAttribute(key);
 
         if (attr instanceof BooleanAttribute) {
-            return (Boolean) attr.getValue();
+            final Boolean value = (Boolean) attr.getValue();
+            if( value == null )
+                return defaultValue;
+            
+            return value;
         }
 
-        return null;
+        return defaultValue;
     }
-}
-// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
+}
\ No newline at end of file