Re: When to use JSF?
As a general rule, I would only use Struts if I had a considerable legacy
system built with it. In that case, depending upon the skillsets of your
team and the amount of legacy code, it might be better to stick with Struts.
But otherwise, Struts is dated, and in today's world is a pretty tedious way
to develop a new application. JSF is much better. For example, value
expressions in JSF reduce the amount of code you must write vs. Struts in a
big way. Instead of implementing a Struts action, that's passed a form bean,
from which you manually pull strings, convert them to their appropriate
type, and manually push that data to the model, in JSF, you just do this: #{
bean.property} and JSF takes care of all that tedium for you. Struts
dynabeans help in that regard, but still...
That said, JSF has many flaws and holes; for example, JSF doesn't explicitly
support client-side validation out of the box. Shale, and other open-source
frameworks such as Facelets, Seam, and Ajax4jsf serve to fill those holes
and provide a great deal of cool functionality on top.
btw, all of my comments concerning Struts refer to Struts 1.X. I know very
little about Struts 2, other than it is really WebWork in disguise.
david
2006/11/14, Thomas Walland [EMAIL PROTECTED]:
I have a question to the usage of JSF and Shale.
Are there any rules or is there any limitation, when Shale/JSF should
be applied to a project?
Until now I only worked with Struts. So I was involved in page-centric
developement.
Is it easy to build applications which uses user-input in a massive
way? For example, triggering some actions because of some input-data?
I just want a few rules or tipps, when to use JSF and when it would be
better to continue using struts.
Thanks a lot,
Thomas
Re: form rendering problem
David D. gives some good advice, but the standard JSF way of doing this, without having to drag Tomahawk into the mix is to use h:panelGrid. btw, you don't need empty bodies in your JSF HTML tags. david 2006/11/13, david.delbecq [EMAIL PROTECTED]: Hi Jonathan, Don't mix JSF component and html tags in your JSP. The whole JSF form tree is rendered at the position of the h:form and the html tags are rendered after the form tag. If you want to include html tags inside your jsf tree, use the f:verbatim component around html sections or use the t:tag of tomahawk. The later one is cleaner in terms of hierarchy in the jsp, but might be difficult to read if you go too deep. In your case (rendering a table) there is already a grid component in tomahawk that does it :) btw, attachements are stripped away from mailing list. If you want to provide screenshots use something like imageshak. Jonathan Smith a écrit : ok using this code %@ page language=java contentType=text/html; charset=ISO-8859-1 pageEncoding=ISO-8859-1% !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN %@ taglib prefix=f uri=http://java.sun.com/jsf/core% %@ taglib prefix=h uri=http://java.sun.com/jsf/html% %@ taglib prefix=t uri=http://myfaces.apache.org/tomahawk% t:div styleClass=portletheader h:outputText value=Add Contact/h:outputText /t:div h:form table tr td width=50%h:outputText value=First Name: //td td width=50%h:inputText id=fName value= //td /tr tr tdh:outputText value= Last Name: //td tdh:inputText id=lName value= //td /tr tr tdh:outputText value= Office: //td tdh:inputText id=office value= //td /tr tr tdh:outputText value= Extension: //td tdh:inputText id=extension value= //td /tr tr tdh:outputText value= Email: //td tdh:inputText id=email value= //td /tr tr tdh:outputText value= IM Username: //td tdh:inputText id=imUsername value= //td /tr tr tdh:outputText value= IM Service: //td tdh:inputText id=imService value= //td /tr /table h:commandButton styleClass=managerboxbutton style=margin-top:5%; value=Add Contact action=addcontact/h:commandButton /h:form the form gets rendered wrong. please see attachment for a picture. _ Stay in touch with old friends and meet new ones with Windows Live Spaces http://clk.atdmt.com/MSN/go/msnnkwsp007001msn/direct/01/?href=http://spaces.live.com/spacesapi.aspx?wx_action=createwx_url=/friends.aspxmkt=en-us
Re: Is it a postback or a fresh page load?
2006/11/8, Craig McClanahan [EMAIL PROTECTED]: On 11/8/06, Ramineni Viswanath [EMAIL PROTECTED] wrote: While on a page, I call the same page with a different set of query parameters, it is being treated as a postback. For example my current url is /mainmenu.faces?menuid=0 I have a HtmlOutputLink on this page with the value set to /mainmenu.faces?menuid=26. When I click on this link, isPostBack() is showing true. Is this the correct and intended behaviour? The mechanism used to declare a request being a postback is whether the ViewController.restoreView() method provided by JSF determines that there was an existing view that could be restored. In turn, if you are using server side state saving with current 1.1 implementations, this decision is based solely on the view identifier, not on any related parameters. Thus, if you are using server side state saving, JSF will treat your two URLs as being the same, and will restore the previous state (and, therefore, the postback property will be set to true). If you were to use client side state saving, on the other hand, the two URLs would be considered distinct views (since the HtmlOutputLink ends up doing a GET to the second URL), with no state to be restored, and therefore postback would be false. Holy cow, I didn't know that. Is that not a bug according the definition of a postback? IMO, behaviour that differs depending upon state-saving mode is bad news. david --Vish Craig
Re: new to shale tiles
2006/11/8, Jonathan Smith [EMAIL PROTECTED]: added the space and the flush false now i get a java.lang.IncompatibleClassChangeError org.apache.shale.tiles.TilesViewHandler.dispatchToTile( TilesViewHandler.java:304) org.apache.shale.tiles.TilesViewHandler.renderView( TilesViewHandler.java:160) org.apache.myfaces.lifecycle.LifecycleImpl.render( LifecycleImpl.java:384) javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) org.apache.shale.application.faces.ShaleApplicationFilter.doFilter (ShaleApplicationFilter.java:267) what does this mean? It means you're screwed. 8-) That's essentially a linkage error (see the javadocs). I suspect you somehow have incompatible JARs. It looks like you're trying to call the Tiles ComponentContext, but that class is not what the compiler is expecting. What version of Tiles are you using? You must use the standalone version of Tiles with Shale. david From: David Geary [EMAIL PROTECTED] Reply-To: user@shale.apache.org To: user@shale.apache.org Subject: Re: new to shale tiles Date: Wed, 8 Nov 2006 10:09:47 -0700 I believe you're missing a space between the two attributes. Also, you should specify flush=false or you're bound to run into problems. david 2006/11/8, Antonio Petrelli [EMAIL PROTECTED]: Jonathan Smith ha scritto: ok when i do this tiles:insert definition=debug2flush=true/tiles:insert with this as the definition tiles-definitions definition name=debug2 path=debug2.jsp put name=header type=template value=/debug/debug-header.jsp / /definition definition name=header value=/debug/debug-header.jsp / /tiles-definitions I get this javax.servlet.ServletException: /debug2.jsp(4,0) Attribute definition invalid for tag insert according to TLD javax.faces.webapp.FacesServlet.service(FacesServlet.java:152) org.apache.shale.application.faces.ShaleApplicationFilter.doFilter( ShaleApplicationFilter.java:267) what am i doing wrong? It's not your fault :-) Notice that Tiles 2 is under heavy development. For example you have a snapshot where tiles:insert tag is still there, while in the SVN repository, that tag is not there anymore, because it is splitted in three. http://struts.apache.org/struts-sandbox/tiles/faq.html#insert Ciao Antonio _ Stay in touch with old friends and meet new ones with Windows Live Spaces http://clk.atdmt.com/MSN/go/msnnkwsp007001msn/direct/01/?href=http://spaces.live.com/spacesapi.aspx?wx_action=createwx_url=/friends.aspxmkt=en-us
Re: General questions to shale...
2006/11/3, Thomas Walland [EMAIL PROTECTED]: Hi, As I already wrote, I am a newby to apache shale. So I have a few general questions. I have great experience with apache struts, but never made some work with JSF or other technologies which are used in shale. So I need something like a short introduction in the style of shale für struts users. Shale is built on JSF, so you need to have a good grasp of JSF fundamentals. I heard a lot about the prerenderer. Is this something like the controller-classes in struts-tiles? A class or action which is called just before the associated jsp or html file is rendered? Yes, the controller's prerender method is indeed much like a Tiles controller. In that method, you generally set things up for the view. Until now I had only a look to the clay-usecases example which is distributed on the shale-webpage. In this example, there is a managed-bean defined (QueryParam) which puts some Request-Parameters into the defined class. Can we say in general, that this is a rebuild of the functionality of the Struts-Action's? Another question: Most question and mails on this list refer to jsp functionality and problems with some jsp-errors. As I heard about struts especially about clay, this was the most interesting point for me. But it seems that not that much people are using clay at the moment? Are there some great disadvantages about this technology? I want to realize a huge project with shale and also with clay. Is it a too early stage to use clay? Is there some further developement work, which should be done? truphone.com was implemented using Shale and Clay. I hope my questions are clearly written. I am not so an experienced english-writer. No problem, you're doing very well. david Thanks :-) Thomas --- Thomas Walland http://www.walland.net [EMAIL PROTECTED]
Re: Please Welcome Rahul Akolkar As A Shale Committer
Thanks for all of the work you've already done on Shale, Rahul. We're glad to have you on board! david 2006/10/13, Matthias Wessendorf [EMAIL PROTECTED]: welcome dude! On 10/13/06, James Mitchell [EMAIL PROTECTED] wrote: Welcome Rahul! -- James Mitchell 678.910.8017 On Oct 12, 2006, at 12:00 PM, Craig McClanahan wrote: Please extend a welcome to Rahul Akolkar as a committer to Shale. Rahul has been working tirelessly on the new Dialog2 code in the sandbox, as well as the Commons SCXML technology that is used by one of the Dialog2 implementations. He has consistently shown he gets it on how Apache projects work, and we welcome his participation across the rest of the Shale codebase as well. Welcome Rahul! Craig -- Matthias Wessendorf http://tinyurl.com/fmywh further stuff: blog: http://jroller.com/page/mwessendorf mail: mwessendorf-at-gmail-dot-com
Re: Logo Contest - what happened?
1st choice: Walied Amer {84} (drop of oil is a nice touch, Walied)
2nd choice: Michael Ameduri {49}
3th choice: Aide Chang {70}
4rd choice: Michael Ameduri {31}
5th choice: Coco {73}
david
2006/10/4, James Mitchell [EMAIL PROTECTED]:
The voting is still open right now. We'll give people until this
weekend before we tally the results.
If anyone hasn't voted yet, please do so.
--
James Mitchell
678.910.8017
On Oct 4, 2006, at 2:53 AM, Randahl Fink Isaksen wrote:
According to the website
September 19, 2006 to determine the winner
but as far as I can tell, there is still a lot of people voting.
Has the deadline been postponed?
Randahl
Re: Shale-Clay site goes live: http://www.truphone.com
Hey Ian, Thanks so much for pointing us to your site. I'm part of a travelling road show where I teach Shale and Clay and I'm often specifically asked about commercial sites that use Clay's approach to separating HTML and components so that page authors and software developers can easily work with graphic artists. I will add a screenshot of your application to my slideshow ( http://nofluffjuststuff.com/speaker_topic_view.jsp?topicId=18) Thanks again! david 2006/9/15, Gary VanMatre [EMAIL PROTECTED]: Hi Ian, Thanks for sharing your success with us. I really appreciate your participation and for the kind words. The site looks very sexy! Gary -- Original message -- From: Ian.Priest [EMAIL PROTECTED] Hi all, I thought you might be interested to know that the site I've been working on for the past few months has now gone live. The site, http://www.truphone.com, is driven by Shale/Clay sitting on MyFaces and running inside Tomcat. Underneath there is a MySQL database and a bespoke application backend that provides the functionality and interfaces with the VoIP provider and various other third parties. Clay was chosen for the ability to write pure HTML that could then be replaced by dynamic content and for the Tiles-like layout feature. That was quite important as I was working with a third-party HTML design agency (sadly that slick look and feel isn't my design!) so JSP or similar would have been inappropriate. However, a later architecture re-design showed that Clay was a better choice than realised because I was able to exploit the full-xml and symbol replacement bits of Clay to get a very nice site that blends dynamic and static content in quite a cool manner. The pages are rendered by pulling sub-section pages into a layout to create some archetypes. The full-xml view pages extend the archetypes and use clay and clayImport to pull in the final bits of content in a nice ready for multi-language manner. Those of you who have read and answered my various postings over the last few months will have a pretty good idea of how it's put together, and now the mystery of the unusual .tru extension is solved too :-) (see previous theads). I'm sure Truphone would welcome any constructive comments and I know I would. I'd like to say thanks to everyone here. I couldn't have done it without the help and advice received on this forum, and I'd especially like to single out Gary VanMatre for help he's given me. Thanks. Hope you like the site. Cheers, Ian.
Re: TilesViewHandler
2006/8/29, Baker,Jonathan [EMAIL PROTECTED]: I'm sure if I renamed my tiles to have the slash at the beginning of their names that it would work as well. My confusion is over the explicit statement that it will look for a tile both with and without the leading slash and that does not seem to be the case. It is no longer the case, and the latest documentation has been updated to reflect that. david JB -Original Message- From: Dick Starr [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 29, 2006 8:37 AM To: user@shale.apache.org Subject: RE: TilesViewHandler Standalone Tiles works for me. In tiles.xml I use definitions like definition name=/myDef ... My navigation rules are like from-view-id/myDef.jsp/from-view-id I do not have to do an extra jsp containing a tiles:insert definition= ... for my tiles - except for my very first tile (a jsp:forward from index.jsp). I am using the 8/3/06 release. Dick -Original Message- From: Baker,Jonathan [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 29, 2006 6:28 AM To: Shale User Group (E-mail 2) Subject: TilesViewHandler According to the Documentation for the shale-tiles TilesViewHandler: * Strips off the view ID's suffix (eg: /tiles/test.jsp becomes /tiles/test) * Searches for a tile with the resulting name, with or without the leading slash (eg: /tiles/test or tiles/test) I was not getting this behavior at all. My tile is defined as inbox, and my navigation rule points to /inbox.jsp. The view handler cannot successfully find the tile named inbox. I looked at the source for this class and even though the javadoc says that the leading slash is stripped off, I could find no code anywhere in that class that looked for the tile, and if it wasn't found stripped of a leading slash and looked for the tile again. If I remove the leading slash from my navigation rule, I get the follwoing error: (JspViewHandlerImpl.java:285) - ViewId must start with '/' (viewId = inbox.jsp) I am using the shale 1.03 release. Thanks for your help. JB
Re: Stupid ? re dialog data
You have to set up the dialog data yourself. One way to do that is with an
action state as the starting state for a dialog; for example:
dialog name=Payment start=Setup
action name=Setup
method=#{dialogLauncher.setupPaymentDialog}
transition outcome=success
target=Payee Information/
/action
!-- Payee Information --
view name=Payee Information
viewId=/billpay/payment/wizard.jsp
transition outcome=next
target=Payment Method/
/view
...
/dialog
/dialog
The Setup state is an action state, so it invokes
dialogLauncher.setupPaymentDialog(), which returns a string that Shale
immediately uses as an outcome.
Here's the method:
public class DialogLauncher extends AbstractFacesBean {
public String setupPaymentDialog() {
// Create billpay data
billpayData = new BillpayData();
// Set dialog data with the handy setValue method
// from org.apache.shale.view.AbstractFacesBean
setValue(#{dialog.data}, billpayData);
// This outcome takes us to the payment dialog's
// first view state
return success;
}
}
In my views, I have fields wired to my dialog.data:
h:inputText id=paymentAmount
value=#{dialog.data.paymentAmount}/
david
2006/7/27, Sean Comerford [EMAIL PROTECTED]:
I've had no problem setting up a dialog but I can't figure out how to use
the dialog scoped data. I need a simple example I guess...
So assuming the following dialog:
dialog name=testDialog start=step1
view name=step1 viewId=/step1.jsp
transition outcome=next target=step2 /
/view
view name=step2 viewId=/step2.jsp
transition outcome=prev target=step1 /
transition outcome=exit target=exit /
/view
end name=exit viewId=/done.jsp /
/dialog
I want to have a text input with a value bound to #{dialog.data.name} in
step1.jsp so I can refer to it in step2.jsp
But if, in step1.jsp, I just try:
af:inputText value=#{dialog.data.name} /
The input doesn't show up because the binding doesn't exist and clearly I
can't access it again later :)
So it seems I need a backing bean to hold name but I'm not sure what to
call
it / how to point to it.
Can someone dumb this down for me?
--
Sean Comerford, Software Engineer
Major League Baseball Advanced Media
[EMAIL PROTECTED] ~ 212.485.4508
MLB.com: Where Baseball is Always On
