Implement serverside and client side validatation

examples/widgetapp/own_validator.e

@@ -0,0 +1,31 @@
+note
+	description: "Summary description for {OWN_VALIDATOR}."
+	author: ""
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	OWN_VALIDATOR
+
+inherit
+
+	WSF_VALIDATOR [STRING]
+
+create
+	make_own
+
+feature {NONE}
+
+	make_own
+		do
+			error := "Input to long"
+		end
+
+feature
+
+	is_valid (input: STRING): BOOLEAN
+		do
+			Result := input.count < 5
+		end
+
+end