add docs in code

Author: nsolov

src/cls/ZPM/Analytics/AbstractEventProcessor.cls

@@ -1,13 +1,17 @@
+/// To execute your code immediately after the event occurs,
+/// you need to create a subclass of this class and override the Process() method in it.
 Class ZPM.Analytics.AbstractEventProcessor [ Abstract ]
 {
 
 Parameter SubClasses As CONFIGVALUE;
 
-ClassMethod Process(event) As %Status [ Abstract ]
+/// Override this method to run your code when event occurs
+ClassMethod Process(event as ZPM.Analytics.Event) As %Status [ Abstract ]
 {
     Return $$$OK
 }
 
+/// Do not change or override this method
 ClassMethod getSubClasses() As %String [ CodeMode = objectgenerator ]
 {
     Set list = ""