[Apache Struts Wiki] Updated: StrutsCatalogInstrumentableForms

[st...@jakarta.apache.org]

   Date: 2004-04-09T13:53:48
   Editor: 131.191.40.91 <>
   Wiki: Apache Struts Wiki
   Page: StrutsCatalogInstrumentableForms
   URL: http://wiki.apache.org/struts/StrutsCatalogInstrumentableForms

   no comment

Change Log:

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@@ -1,6 +1,8 @@
 StrutsCatalog: '''Provide a multipurpose form that can be instrumented.'''
 
-This class allows you to instrument your !ActionForms and use them as dynamic property setters and getters as well.  (The size 89 is chosen because the series created by x = 2x + 1 stays prime for a considerable time.  This is far preferrable to the default !HashMap behavior.)  You don't have to use this as a form, of course.  You can use it just for the dynamic property setters and getters and instrument these as you like.  
+This class allows you to instrument your !ActionForms and use them as dynamic property setters and getters as well.  (The size 89 is chosen because the series created by x = 2x + 1 stays prime for a considerable time.  This is far preferrable to the default !HashMap behavior.)  You don't have to use this as a form, of course.  You can use it just for the dynamic property setters and getters and instrument these as you like.  But, there are lots of reasons to instrument action forms and this allows you to do that.
+
+You instrument such forms, of course, by subclassing !BeanMapForm.  Check Joshua Bloch's <i>Effective Java</i> and Item 14 (favor composition over inheritance) to understand the intricacies involved with instrumentation and collection classes.
 
 {{{   
 public class BeanMapForm extends ActionForm implements Map {

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