'ControlPropertyListenerBuilder' now has a code example.

Author: nicolaiparlog

src/main/java/org/codefx/libfx/control/properties/ControlPropertyListenerBuilder.java

@@ -18,6 +18,15 @@
  * it to check the type of the value before casting it to the type accepted by the value processor. If those types do
  * not match, this prevents {@link ClassCastException} (which would otherwise be caught and silently ignored). If that
  * case occurs frequently, specifying the type to allow the check will improve performance considerably.
+ * <p>
+ * A typical use looks like this:
+ * 
+ * <pre>
+ * ControlProperties.<Boolean> on(control.getProperties())
+ * 	.forKey("visible")
+ * 	.processValue(this::setVisibility)
+ * 	.buildDetached();
+ * </pre>
  *
  * @param <T>
  *            the type of values which the listener processes