Re: [HOW TO? ImageButtonBeanManager Extension]

Michael McGrady Fri, 24 Sep 2004 12:43:44 -0700

My tests indicate a five fold performance increase. My tests were hurried and are not reliable. But, visually they were obvious. I am looking forward to your assistance. I could use it.

Michael McGrady

P.S. Carlos, please just call me "Mike". We all come from the same eggshell.

Carlos Cajina - Hotmail wrote:

I think I got it Mr. McGrady! I went for the DispatchUtil approach and as
far as I've tested it with a simple-no-validations-yet-three-step wizard
things look promising. I can even "feel" a boost in the page navigation
performance using your solution instead of the ones the Struts Framework
offers (LookupDispatchAction, for instance) I'll move to my "real" project
and post any interesting finds in the next days.

Regarding the page polishing, I could craft a step-by-step tutorial with
sample code (at least for the first two solutions) to add it to the page if
that seems OK with you, I could also look for typos in the current docs to
correct them... as a starting point this is...

I set eyes on your email address and I took the liberty to visit your web
site... Good cat pictures you got there ;^)  I like cats too...

Thanks a lot Mr. McGrady. I really appreciate your help.

I'll keep in touch.

Carlos

----- Original Message ----- From: "Michael McGrady" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Friday, September 24, 2004 12:34 PM Subject: Re: [HOW TO? ImageButtonBeanManager Extension]

Thanks, Carlos,

The difficulty in getting the page up had rather overshadowed any
discussion of what they say.  I have quite a lot yet to add to the
page.  I would indeed appreciate any efforts to assist.  Be my guest.

Michael McGrady

Carlos Cajina - Hotmail wrote:

I'll sure be waiting for them Mr. McGrady :^) Thanks for your time! By

the

way, I'll be glad to help out with "polishing" the page, if there's

anything

I can do please let me know; the solutions proposed are worth the effort

of

a good documentation...
----- Original Message ----- From: "Michael McGrady" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Friday, September 24, 2004 12:17 PM Subject: Re: [HOW TO? ImageButtonBeanManager Extension]
Answers to your other questions to follow in a bit, Carlos.
Carlos Cajina - Hotmail wrote:
Good morning.
Thanks to Mr. McGrady for his suggestion. I think the persistent nature
of
the need to handle multiple (image) buttons in web applications is
precisely
what makes this problem so recurrent ;^)
I've moved from the 'ImageButtonBeanManager Extension' approach and
decided
to try to get SOLUTION TWO up & running but I've ran into a few

problems

and

thought that maybe you could spare some time to help me out.

Issue #1
-----------
- In the SOLUTON ONE: DispatchUtil Solution Code the 'log' variable
declaration is as follows: protected static Log log =
LogFactory.getLog(DispatchUtil.class);
- In the SOLUTION TWO: (new) DispatchAction Solution Code the 'log'

variable

declaration is as follows: protected static Log log =
LogFactory.getLog(SimpleDispatchAction.class);
* My first question is: In the second 'log' variable declaration, Where

does

SimpleDispatchAction.class comes from? Shouldn't it read
DispatchAction.class?
Issue #2 ----------- - I have a class that extends my (new) DispatchAction class. Within

this

class I have coded the methods that will perform the actions referenced

by

the <html:submit...> buttons in my forms, i.e.
public ActionForward [ next | back | finish ] (
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception
{ ... }
- In my JSP forms, every button is defined like this:
<html:form action="/wizard">
<html:hidden property="page" value="[ 1 | 2 | 3... ]" />

<bean:message key="someField.label" />
<html:text property="someField" />

<html:submit property="back.dispatch">
 <bean:message key="button.back" />
</html:submit>

<html:cancel>
 <bean:message key="button.cancel" />
</html:cancel>

<html:submit property="next.dispatch"> <bean:message key="button.next" /> </html:submit> </html:form> * My second question is kinda stupid: What's next? I mean, It seems

like

I
can use struts-config.xml to get things working MappingDispatchAction
style
or LookupDispatchAction style, but since the (new) DispatchAction (aka DispatchUtil) takes care of things transparently, What would be the

next

step to implement SOLUTION TWO?
Issue #3
-----------
* I don't get what this means :^(  [Section  3.1. Action Class Code to
Use]
"In all the following tag uses, you use the Action class code in
execute(...) or process(...) as given directly below.
ActionForward = forward = new
DispatchUtil().dispatch(this,mapping,form,request,response);"
Again, any help would be greatly appreciated.
Have a nice day!
Regards,
Carlos
----- Original Message ----- From: "Michael McGrady" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Thursday, September 23, 2004 9:00 PM Subject: Re: [HOW TO? ImageButtonBeanManager Extension]
Carlos,
This solution just adds weight (ImageButtonBean) on top of (DispatchAction) and combines what are the same solutions really. I would suggest you look at what might be improvements to this sort of suggestion at http://wiki.apache.org/struts/StrutsCatalogFiveMultipleButtonSolutions

Amazing how oftent this comes up.
Michael McGrady
Carlos Cajina - Hotmail wrote:
Hi. I'm tryin' to add this Strust extension to my project and from

the

documentation I understand that what I need to do is create my Action

Flow

using the SubmitButtonForwardDispatchAction, but after coding my Action

Form

and Action classes and setting up struts-config.xml I keep getting this
error:

2004-09-23 19:10:08,062 DEBUG

[org.apache.struts.action.RequestProcessor]

Looking for Action instance for class
com.mitranosoft.struts.actions.SubmitButtonForwardDispatchAction

2004-09-23 19:10:08,062 DEBUG

[org.apache.struts.action.RequestProcessor]

Creating new Action instance
2004-09-23 19:10:08,156 WARN
[com.mitranosoft.struts.actions.SubmitButtonForwardDispatchAction] SubmitButtonForwardDispatchAction.execute(): Warning - Error

encountered

and
handled while attempting to locate ActionForward property-name=[

submit ]

of
[EMAIL PROTECTED], for Request=[
[EMAIL PROTECTED]/webm/asis

t

e
nte.do,contextPath=/webm,method=POST,queryString=<null>,sessionId=BDCA6197

1

A1B419D6785F9CAADC7185] ].

2004-09-23 19:10:08,156 DEBUG

[com.mitranosoft.struts.util.DefaultActionForwardSelector]
DefaultActionForwardSelector.getActionForward(): Returning a default
ActionForward matching name=[ otherwise ]. ActionForward=[

[EMAIL PROTECTED],path=/index.

j

p,redirect=false,contextRelative=false] ], ActionForm=[
[EMAIL PROTECTED] ], for Request=[

[EMAIL PROTECTED]/webm/asis

t

e
nte.do,contextPath=/webm,method=POST,queryString=<null>,sessionId=BDCA6197

1

A1B419D6785F9CAADC7185] ]

2004-09-23 19:10:08,156 WARN

[com.mitranosoft.struts.actions.SubmitButtonForwardDispatchAction]
SubmitButtonForwardDispatchAction.execute(): Warning - A default

ActionForm

has been selected or created, ActionForward=[

[EMAIL PROTECTED],path=/index.

j

s
p,redirect=false,contextRelative=false] ], because no property was

found

for
property-name=[ submit ] of [EMAIL PROTECTED],

for

Request=[
[EMAIL PROTECTED]/webm/asis

t

e
nte.do,contextPath=/webm,method=POST,queryString=<null>,sessionId=BDCA6197

1

5
A1B419D6785F9CAADC7185] ]
2004-09-23 19:10:08,156 DEBUG
[org.apache.struts.action.RequestProcessor]
processForwardConfig(ForwardConfig[name=otherwise,path=/index.jsp,redirect

=

f
alse])
- In each of JSP's I have this for my buttons except for

<html:cancel>:

<html:submit property="submit">

<bean:message key="button.XXXX" /> // Where XXXX could be 'next',

'back', 'finish'

</html:submit>

I understand that the extension -through the

SubmitButtonForwardDispatchAction action- does the job of automatically
mapping a <html:submit...> button to an Action that is supposed to

process

the specific business logic that button encapsulates, acting like some

kind

of hub for every incoming button click in the JSP forms, but I don't

know

whether I am missing something because things just won't work.

It's worth saying that the mapping in the

SubmitButtonForwardDispatchAction for a 'cancel' action works fine,

whenever

I hit the cancel button in my form I'm redirected to the correct

location;

also the 'otherwise' mapping works good... it's were I'm taken to

everytime

I hit the next button and the errors pops up in the log files :^P

For any help, my eternal gratitude :^)

Have a nice evening.

Regards,

Carlos

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Re: [HOW TO? ImageButtonBeanManager Extension]

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