RE: struts-faces bug?
Hi, I just read: http://forum.java.sun.com/thread.jsp?forum=427thread=500294tstart=30trang e=15 New version solved problem! greetings Oliver -Ursprüngliche Nachricht- Von: Oliver [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 10. März 2004 19:42 An: [EMAIL PROTECTED] Betreff: struts-faces bug? Hi, After spending hours with error-searching and reading other forums and mailinglists, I am at a loss. I think there is an error in the struts-faces library. I am using Tomcat 5.0.19, JSF1.0 reference implementation from Sun and struts-faces.jar from 6.3.04. The JSF examples work trouble free, but as soon as I want to use the struts-faces.jar with my struts app. I get the following Exception: 2004-03-10 19:22:32 StandardContext[/myApp]Error configuring application listener of class org.apache.struts.faces.taglib.LifecycleListener java.lang.IncompatibleClassChangeError: Implementing class at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:537) at java.security.SecureClassLoader.defineClass(SecureClassLoader. java:123) at org.apache.catalina.loader.WebappClassLoader.findClassInternal (WebappClassLo ader.java:1677) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappC lassLoader.jav a:900) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappC lassLoader.jav a:1350) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappC lassLoader.jav a:1230) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:1610) at java.lang.Class.getConstructor0(Class.java:1922) at java.lang.Class.newInstance0(Class.java:278) at java.lang.Class.newInstance(Class.java:261) at org.apache.catalina.core.StandardContext.listenerStart(Standar dContext.java: 3722) at org.apache.catalina.core.StandardContext.start(StandardContext .java:4270) at org.apache.catalina.core.ContainerBase.addChildInternal(Contai nerBase.java:8 66) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase. java:850) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:638) at org.apache.catalina.core.StandardHostDeployer.install(Standard HostDeployer.j ava:320) at org.apache.catalina.core.StandardHost.install(StandardHost.java:875) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:657) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:476) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1008) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConf ig.java:394) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(L ifecycleSuppor t.java:166) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1134) at org.apache.catalina.core.StandardHost.start(StandardHost.java:832) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1126) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:521) at org.apache.catalina.core.StandardService.start(StandardService .java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.j ava:2345) at org.apache.catalina.startup.Catalina.start(Catalina.java:594) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccess orImpl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMeth odAccessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:297) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:398) Thanks for your proposals and help Greetings Oliver - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces-integration-lib
Quoting Matthias Wessendorf [EMAIL PROTECTED]: Hi, i noticed, that JSF became final. Now i asked myself, when the struts-faces-lib will be shipped? that one, that works with 1.0_final... ;-) Well, it has to work first :-). I'm finishing up the debugging before I commit a version that works with the 1.0 final release (without Tiles ... the next step will be catching up the Tiles integration as well). My personal goal is to have a production quality version of this code released before JavaOne. In order for that to happen, it will need lots of testing across a variety of existing applications, so we'll probably need some 'early access' type snapshots in the interim. Is main focus now working on struts_1.2? or is the integration-lib independent of struts-1.2 because it is in contrib-folder! So far, I've been doing the integration work against a stock Struts 1.1 install, so it will be backwards compatible. I'll test, of course, with Struts 1.2 as well before we actually release anything. Thanks for answer! :-) Cheers! -- Matthias Weßendorf Aechterhoek 18 D-48282 Emsdetten Email: mailto:[EMAIL PROTECTED] URL: http://www.wessendorf.net Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces Roadmap
Quoting Nadeem Bitar [EMAIL PROTECTED]: Is there a roadmap for the struts and jsf integration library? I am particularly interested in an update that would support tiles. I already tried the modifications suggested in the developerworks article (http://www-106.ibm.com/developerworks/library/j-integrate) with partial success, but I would prefer that it was supported directly in struts-faces. thanks in advance, nadeem The plan is definitely to keep struts-faces up to date with the upcoming beta and final releases of JavaServer Faces. Ensuring that Tiles support works is very high on my agenda; it's a matter of having sufficient time to integrate and test the solution. Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces
Likewise, if anyone really wanted throwaway, non-threadsafe Actions, there's a nice technique that Maverick uses. A regular singleton Action is used as a wrapper. When execute is called, the wrapper instantiates a new instance of the desired type and returns the outcome of its execute. But the ActionForm technique Greg describes would be an even better way to create throwaway Actions. Gregory Seidman wrote: On Wed, Sep 17, 2003 at 01:14:27PM +0200, Adam Hardy wrote: } I remember a while ago in one of these architecture- theme emails you } discussed the OO nature of struts it had been said that the } action-form class and the action class broke the OO encapsulation } principle, by having data in one and functionality in another. You said } if you were going to design struts again, you would probably address this. [...] This is a quibble. If you want to put your functionality into your ActionForm class, go ahead. Create an abstract ActionForm subclass that has a takeAction() pure virtual method in it (with appropriate arguments). Create an Action class which does nothing more than cast to your ActionForm subclass and call takeAction(). There you go, functionality in the same class that holds the data. } Adam --Greg - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Ted Husted, Junit in Action - http://www.manning.com/massol/, Struts in Action - http://husted.com/struts/book.html, JSP Site Design - http://www.amazon.com/exec/obidos/ISBN=1861005512. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces
Craig R. McClanahan wrote:
// Return an Action for processing a logon
public Action getLogon() {
return new Action() {
public String invoke() {
return logon();
}
}
}
Very cool technique =:)
But this has to be the coolest trick yet:
// Add an error message
FacesContext.getCurrentInstance().addMessage(...);
Hey, why bother passing around a context when you can get the thread to
do it? Quite fancy =:)
http://java.sun.com/webservices/docs/1.2/api/javax/faces/context/FacesContext.html
-Ted.
-
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RE: struts-faces
Of course theres an even simpler way to get fresh actions each time - just a few lines change in your request processor. Have it return a new instance each time and dont bother with caching it... -Original Message- From: Ted Husted [mailto:[EMAIL PROTECTED] Sent: Thursday, 18 September 2003 18:57 To: Struts Users Mailing List Subject: Re: struts-faces Likewise, if anyone really wanted throwaway, non-threadsafe Actions, there's a nice technique that Maverick uses. A regular singleton Action is used as a wrapper. When execute is called, the wrapper instantiates a new instance of the desired type and returns the outcome of its execute. But the ActionForm technique Greg describes would be an even better way to create throwaway Actions. Gregory Seidman wrote: On Wed, Sep 17, 2003 at 01:14:27PM +0200, Adam Hardy wrote: } I remember a while ago in one of these architecture- theme emails you } discussed the OO nature of struts it had been said that the } action-form class and the action class broke the OO encapsulation } principle, by having data in one and functionality in another. You said } if you were going to design struts again, you would probably address this. [...] This is a quibble. If you want to put your functionality into your ActionForm class, go ahead. Create an abstract ActionForm subclass that has a takeAction() pure virtual method in it (with appropriate arguments). Create an Action class which does nothing more than cast to your ActionForm subclass and call takeAction(). There you go, functionality in the same class that holds the data. } Adam --Greg - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Ted Husted, Junit in Action - http://www.manning.com/massol/, Struts in Action - http://husted.com/struts/book.html, JSP Site Design - http://www.amazon.com/exec/obidos/ISBN=1861005512. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces
On Thu, 18 Sep 2003, Ted Husted wrote:
Date: Thu, 18 Sep 2003 07:05:44 -0400
From: Ted Husted [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Subject: Re: struts-faces
Craig R. McClanahan wrote:
// Return an Action for processing a logon
public Action getLogon() {
return new Action() {
public String invoke() {
return logon();
}
}
}
Very cool technique =:)
Anonymous inner classes have some mind-bending capabilities :-).
But this has to be the coolest trick yet:
// Add an error message
FacesContext.getCurrentInstance().addMessage(...);
Hey, why bother passing around a context when you can get the thread to
do it? Quite fancy =:)
It's definitely cute, but there's a tradeoff. The FacesContext
implementation has to use a ThreadLocal variable (or something equivalent)
in order to keep trace of the current FacesContext instance for each
webapp, so there's a (small but real) performance difference between
calling getCurrentInstance() and passing the current context on the stack.
In general, we have tried to pass the context when it was easily
available, but not stressed over using getCurrentInstance() in other
cases.
One might think about applying this design pattern to something like
commons-chain as well (to avoid passing on the Context object). That
would work if there was only one chain being processed per thread, which
may or may not be practical (it is for JavaServer Faces because there's
only one FacesContext instance per request processing thread).
http://java.sun.com/webservices/docs/1.2/api/javax/faces/context/FacesContext.html
-Ted.
Craig
-
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Re: struts-faces
Hi Craig, I remember a while ago in one of these architecture- theme emails you discussed the OO nature of struts it had been said that the action-form class and the action class broke the OO encapsulation principle, by having data in one and functionality in another. You said if you were going to design struts again, you would probably address this. Does JSFaces bring these two closer together? Or is this an area where Faces is not involved? I see you say that in a combination of struts Faces, you would still use actions and forms. The reason I ask is that I just had a hard time redesigning a page because my initial design failed. The page allows an edit of one parent object, while showing a list of its child objects with move-to-new-parent / delete controls. I got in a mess initially over whether to use the parent or child's form and action for the child operations. Fortunately I solved it nicely by nesting the child objects in the parent form, and passing the whole lot to the parent's model, which then worked out if it needed to call the child's model for any operations. Adam On 09/16/2003 09:30 PM Craig R. McClanahan wrote: On Tue, 16 Sep 2003, Sasha Borodin wrote: Date: Tue, 16 Sep 2003 12:35:22 -0500 From: Sasha Borodin [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Subject: Re: struts-faces Thanks Craig. You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Reading through Sun's Web Services Tutorial section on JSF, things are starting to come into focus: JSF provides functionality that overlaps that of Struts (my misconception was that JSF was strictly a UI component tag library). Yep ... there's quite a bit of overlap, and JavaServer Faces is FAR more than a component tag library. .: Anyone know of a resource that summarizes/contrasts solutions provided by both frameworks? I'll throw in a few short comments below, but caution you that this is based on the EA4 release of JavaServer Faces. Things are still evolving rapidly. (My comments ought to have at least a *little* relevance, because I'm both the original author of Struts and the co-spec-lead for JavaServer Faces :-). i.e.: -UI Components Struts doesn't really have any notion of components at all (the closest thing is properties of a form bean), while JavaServer Faces has a fairly rich component model that is accessible at both the Java and JSP levels (JSP is not required), supports a separate rendering model (so you can render something like a select one control as either a set of radio buttons or a select element with one simple change) and is not tied to HTML -- although the default render kit included will be HTML specific. Out of the box, you'll get complex components like a grid and an editable table, and there are already demonstration components for things like trees and menus that (in a Struts world) require additional add-on tag libraries. For people who have existing Struts expertise and/or applications, this is the key value add of integrating JavaServer Faces -- you can use the fancy UI component model without having to change your back-end form beans or actions. -controller components This is where Struts shines, and I assume you're familiar with that. JavaServer Faces uses a somewhat different abstraction for navigation, and defers the decision of what page to display next to a NavigationHandler that is configured with a set of rules -- the next page is determined by matching rules for: * The page that is currently being displayed * Which Action was invoked (for example, you can have multiple submit buttons on the page that do different things) * Which logical outcome was returned by the Action that was invoked -- sort of like how Struts actions return an ActionForward. JavaServer Faces is more flexible in how you organize your processing logic -- you can maintain a Struts-like model of separate form beans and action classes, or you can combine them together (somewhat like how code-behind pages work in ASP.Net). Struts has a couple of framework features (Tiles and the Validator Framework) that are beyond the current scope of JavaServer Faces -- but one advantage of the integration library is that you'll be able to use these sorts of technologies together. -model components Being presentation frameworks, both technologies are mostly focused on the view and controller. The important part becomes how the presentation tier and model tier object communicate values: * With Struts, you can use property expressions to navigate down a bean hierarchy -- something like: bean:write name=customer property=address.city/ * With JavaServer Faces, this is done with value reference expressions that use the same syntax as JSTL EL expressions. The equivalent tag to output a bean property would be: h:output_text valueRef
Re: struts-faces
On Wed, Sep 17, 2003 at 01:14:27PM +0200, Adam Hardy wrote: } I remember a while ago in one of these architecture- theme emails you } discussed the OO nature of struts it had been said that the } action-form class and the action class broke the OO encapsulation } principle, by having data in one and functionality in another. You said } if you were going to design struts again, you would probably address this. [...] This is a quibble. If you want to put your functionality into your ActionForm class, go ahead. Create an abstract ActionForm subclass that has a takeAction() pure virtual method in it (with appropriate arguments). Create an Action class which does nothing more than cast to your ActionForm subclass and call takeAction(). There you go, functionality in the same class that holds the data. } Adam --Greg - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces
On Wed, 17 Sep 2003, Adam Hardy wrote:
Date: Wed, 17 Sep 2003 13:14:27 +0200
From: Adam Hardy [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Subject: Re: struts-faces
Hi Craig,
I remember a while ago in one of these architecture- theme emails you
discussed the OO nature of struts it had been said that the
action-form class and the action class broke the OO encapsulation
principle, by having data in one and functionality in another. You said
if you were going to design struts again, you would probably address this.
Does JSFaces bring these two closer together? Or is this an area where
Faces is not involved? I see you say that in a combination of struts
Faces, you would still use actions and forms.
JavaServer Faces is designed to give you options to organize things either
way. Here's one example of a logon form (and associated back-end logic)
that combines the Struts notions of ActionForm and Action into a single
class (corresponds to the syntax in the EA4 release):
JSP PAGE (/logon.jsp):
=
...
h:form
h:output_errors/
h:panel_grid columns=2
h:output_text value=Username:/
h:input_text id=username valueRef=logonForm.username/
h:output_text value=Password:/
h:input_secret id=password valueRef=logonForm.password/
h:command_button label=Log On type=submit
actionRef=logonForm.logon/
h:command_button label=Reset type=reset/
/h:panel_grid
/h:form
...
FACES CONFIGURATION FILE (faces-config.xml):
===
...
managed-bean
managed-bean-namelogonForm/managed-bean-name
managed-bean-classmypackage.MyLogonForm/managed-bean-class
managed-bean-scoperequest/managed-bean-scope
/managed-bean
...
navigation-rule
from-tree-id/logon.jsp/from-tree-id
navigation-case
from-outcomesuccess/from-outcome
to-tree-id/mainmenu.jsp/to-tree-id
/navigation-case
/navigation-rule
...
BACKING CLASS:
=
package mypackage;
public class MyLogonForm { // No required base class or interface
// Property for username field
private String username;
public String getUsername() { return username; }
public void setUsername(String username) { this.username = username; }
// Property for password field
private String password;
public String getPassword() { return password; }
public void setPassword(String password) { this.password = password; }
// Return an Action for processing a logon
public Action getLogon() {
return new Action() {
public String invoke() {
return logon();
}
}
}
// The actual logon processing logic
private String logon() {
DAO dao = ...; // Data Access Object for user database
User user = dao.findUser(this.username);
if ((user != null) password.equals(user.getPassword())) {
... record successful logon ...
// Return logical outcome denoting success
return (success);
} else {
// Add an error message
FacesContext.getCurrentInstance().addMessage(...);
// Return logical outcome denoting redisplay this page
return (null);
}
}
}
In this scenario, you can see that the form field values are stored in the
same bean as the processing logic. Therefore, the processing logic can
just use the field values directly (they are in the instance variables).
However, it's only in the same class because the page author used
logonForm at the beginning of the valueRef and actionRef expressions --
they could just as easily have been stored in separate files.
A couple of things not real obvious from this simple example, but
interesting nevertheless:
* The managed-bean declaration causes a new instance of the specified
class to be created in (in this case) request scope, if it is not
there already, similar to the way that Struts creates form beans for
you as needed. However, JavaServer Faces generalizes this to happen
automatically whenever it evaluates a reference expression and the
first element does not identify an existing attribute in some scope.
This can be very handy for instantiating service or processor
objects whose precise characteristics are defined in the configuration
file, rather than being coded in the page.
* JavaServer Faces uses logical outcomes to manage navigation, similar
to the way that Struts uses the returned ActionForward for this.
The returned value is matched against a set of navigation rules that
choose the next page to be displayed based on three criteria:
- What page am I currently displaying? (Wildcard rules are allowed)
- What action was performed? (You can have more than one submit button)
- What logical outcome is returned?
If no rule matches, the current page is redisplayed. I've adopted
the convention
Re: struts-faces
On Tue, 16 Sep 2003, Sasha Borodin wrote: Date: Tue, 16 Sep 2003 11:30:40 -0500 From: Sasha Borodin [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Subject: struts-faces Can someone tell me why I'd need a struts integration version of the JSF implementation? Why can't one just add the RI JAR files, TLD documents, config files and just starting using the tags? You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Thanks, -Sasha Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces
Thanks Craig. You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Reading through Sun's Web Services Tutorial section on JSF, things are starting to come into focus: JSF provides functionality that overlaps that of Struts (my misconception was that JSF was strictly a UI component tag library). .: Anyone know of a resource that summarizes/contrasts solutions provided by both frameworks? i.e.: -UI Components -controller components -model components -Page Flow -etc. Thanks, -Sasha From: Craig R. McClanahan [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] Date: Tue, 16 Sep 2003 10:16:22 -0700 (PDT) To: Struts Users Mailing List [EMAIL PROTECTED] Subject: Re: struts-faces On Tue, 16 Sep 2003, Sasha Borodin wrote: Date: Tue, 16 Sep 2003 11:30:40 -0500 From: Sasha Borodin [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Subject: struts-faces Can someone tell me why I'd need a struts integration version of the JSF implementation? Why can't one just add the RI JAR files, TLD documents, config files and just starting using the tags? You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Thanks, -Sasha Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: struts-faces
Hi Sasha, I don't have a specific resource in mind for you to look at, but I have compiled the most comprehensive listing of Java Server Faces resources on my website. http://www.jamesholmes.com/JavaServerFaces/ Hope that helps, -James -Original Message- From: Sasha Borodin [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 16, 2003 12:35 PM To: Struts Users Mailing List Subject: Re: struts-faces Thanks Craig. You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Reading through Sun's Web Services Tutorial section on JSF, things are starting to come into focus: JSF provides functionality that overlaps that of Struts (my misconception was that JSF was strictly a UI component tag library). .: Anyone know of a resource that summarizes/contrasts solutions provided by both frameworks? i.e.: -UI Components -controller components -model components -Page Flow -etc. Thanks, -Sasha From: Craig R. McClanahan [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] Date: Tue, 16 Sep 2003 10:16:22 -0700 (PDT) To: Struts Users Mailing List [EMAIL PROTECTED] Subject: Re: struts-faces On Tue, 16 Sep 2003, Sasha Borodin wrote: Date: Tue, 16 Sep 2003 11:30:40 -0500 From: Sasha Borodin [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Subject: struts-faces Can someone tell me why I'd need a struts integration version of the JSF implementation? Why can't one just add the RI JAR files, TLD documents, config files and just starting using the tags? You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Thanks, -Sasha Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces
Great website, thanks James! -Sasha From: James Holmes [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] Date: Tue, 16 Sep 2003 15:10:36 -0400 To: 'Struts Users Mailing List' [EMAIL PROTECTED] Subject: RE: struts-faces Hi Sasha, I don't have a specific resource in mind for you to look at, but I have compiled the most comprehensive listing of Java Server Faces resources on my website. http://www.jamesholmes.com/JavaServerFaces/ Hope that helps, -James -Original Message- From: Sasha Borodin [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 16, 2003 12:35 PM To: Struts Users Mailing List Subject: Re: struts-faces Thanks Craig. You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Reading through Sun's Web Services Tutorial section on JSF, things are starting to come into focus: JSF provides functionality that overlaps that of Struts (my misconception was that JSF was strictly a UI component tag library). .: Anyone know of a resource that summarizes/contrasts solutions provided by both frameworks? i.e.: -UI Components -controller components -model components -Page Flow -etc. Thanks, -Sasha From: Craig R. McClanahan [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] Date: Tue, 16 Sep 2003 10:16:22 -0700 (PDT) To: Struts Users Mailing List [EMAIL PROTECTED] Subject: Re: struts-faces On Tue, 16 Sep 2003, Sasha Borodin wrote: Date: Tue, 16 Sep 2003 11:30:40 -0500 From: Sasha Borodin [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Subject: struts-faces Can someone tell me why I'd need a struts integration version of the JSF implementation? Why can't one just add the RI JAR files, TLD documents, config files and just starting using the tags? You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Thanks, -Sasha Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-faces
On Tue, 16 Sep 2003, Sasha Borodin wrote: Date: Tue, 16 Sep 2003 12:35:22 -0500 From: Sasha Borodin [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Subject: Re: struts-faces Thanks Craig. You can, but the integration library lets you use Struts Actions on the back end, creates form beans automatically, and so on. Reading through Sun's Web Services Tutorial section on JSF, things are starting to come into focus: JSF provides functionality that overlaps that of Struts (my misconception was that JSF was strictly a UI component tag library). Yep ... there's quite a bit of overlap, and JavaServer Faces is FAR more than a component tag library. .: Anyone know of a resource that summarizes/contrasts solutions provided by both frameworks? I'll throw in a few short comments below, but caution you that this is based on the EA4 release of JavaServer Faces. Things are still evolving rapidly. (My comments ought to have at least a *little* relevance, because I'm both the original author of Struts and the co-spec-lead for JavaServer Faces :-). i.e.: -UI Components Struts doesn't really have any notion of components at all (the closest thing is properties of a form bean), while JavaServer Faces has a fairly rich component model that is accessible at both the Java and JSP levels (JSP is not required), supports a separate rendering model (so you can render something like a select one control as either a set of radio buttons or a select element with one simple change) and is not tied to HTML -- although the default render kit included will be HTML specific. Out of the box, you'll get complex components like a grid and an editable table, and there are already demonstration components for things like trees and menus that (in a Struts world) require additional add-on tag libraries. For people who have existing Struts expertise and/or applications, this is the key value add of integrating JavaServer Faces -- you can use the fancy UI component model without having to change your back-end form beans or actions. -controller components This is where Struts shines, and I assume you're familiar with that. JavaServer Faces uses a somewhat different abstraction for navigation, and defers the decision of what page to display next to a NavigationHandler that is configured with a set of rules -- the next page is determined by matching rules for: * The page that is currently being displayed * Which Action was invoked (for example, you can have multiple submit buttons on the page that do different things) * Which logical outcome was returned by the Action that was invoked -- sort of like how Struts actions return an ActionForward. JavaServer Faces is more flexible in how you organize your processing logic -- you can maintain a Struts-like model of separate form beans and action classes, or you can combine them together (somewhat like how code-behind pages work in ASP.Net). Struts has a couple of framework features (Tiles and the Validator Framework) that are beyond the current scope of JavaServer Faces -- but one advantage of the integration library is that you'll be able to use these sorts of technologies together. -model components Being presentation frameworks, both technologies are mostly focused on the view and controller. The important part becomes how the presentation tier and model tier object communicate values: * With Struts, you can use property expressions to navigate down a bean hierarchy -- something like: bean:write name=customer property=address.city/ * With JavaServer Faces, this is done with value reference expressions that use the same syntax as JSTL EL expressions. The equivalent tag to output a bean property would be: h:output_text valueRef=customer.address.city/: * In both technologies, it's possible to evaluate expressions like this programmatically in your Java code -- with Struts, you use the commons-beanutils package; with JavaServer Faces, you use the ValueBinding API. * With Struts, the framework will automatically create form bean instances for you if you want. If you're using DynaActionForms, you can also preconfigure the properties of the created form bean using the initial attribute. * With JavaServer Faces, this concept is extended to support creation of *any* model tier bean (in any scope), complete with configuring the initial properties, using the Managed Bean Creation facility. In the example above, I can configure things such that if the customer object does not already exist, a new instance of a configured class will automatically be created, and have its property values also configured based on settings in faces-config.xml. -Page Flow Neither technology has direct support for page flows. There are add-ons for Struts already; I have no doubt that such things will emerge for JavaServer Faces as well. -etc. Because
RE: Struts Faces ea validation XML error
-Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] On Mon, 10 Mar 2003, PILGRIM, Peter, FM wrote: Date: Mon, 10 Mar 2003 17:18:25 - From: PILGRIM, Peter, FM [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List (E-mail) [EMAIL PROTECTED] Subject: Struts Faces ea validation XML error After copying all three JSF JAR to struts-faces/WEB-INF, and copying commons-logging-1.0.2.jar over WEB-INF/lib I got a validation error in the Struts Faces download. Is the validation XML correct? I only get errors like this when I forget to include /WEB-INF/validation.xml in my webapps -- can you make sure that is still present? Craig It is very weird because I have both `/WEB-INF/validation.xml' and `/WEB-INF/validation-rules.xml' in the right place, I also checked the `/WEB-INF/struts-config.xml' to make sure that validator plugin is correctly set. This is how I downloaded the struts-faces.jar ``as is' Something is wrong here. org.apache.jasper.JasperException: Depends string email was not found in validator-rules.xml. void org.apache.jasper.servlet.JspServletWrapper.service(javax.serv let.http.HttpS ervletRequest, javax.servlet.http.HttpServletResponse, boolean) JspServletWrapper.java:248 void org.apache.jasper.servlet.JspServlet.serviceJspFile(javax.serv let.http.HttpS ervletRequest, javax.servlet.http.HttpServletResponse, java.lang.String, java.lang.Throwable, boolean) JspServlet.java:295 void org.apache.jasper.servlet.JspServlet.service(javax.servlet.htt p.HttpServletR equest, javax.servlet.http.HttpServletResponse) JspServlet.java:241 ---- ---- -- Peter Pilgrim, Struts/J2EE Consultant, RBoS FM, Risk IT Tel: +44 (0)207-375-4923 Visit our Internet site at http://www.rbsmarkets.com This e-mail is intended only for the addressee named above. As this e-mail may contain confidential or privileged information, if you are not the named addressee, you are not authorised to retain, read, copy or disseminate this message or any part of it. The Royal Bank of Scotland plc is registered in Scotland No 90312 Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB Regulated by the Financial Services Authority - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Struts Faces ea validation XML error [SOLVED]
-Original Message- From: PILGRIM, Peter, FM -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] On Mon, 10 Mar 2003, PILGRIM, Peter, FM wrote: Date: Mon, 10 Mar 2003 17:18:25 - From: PILGRIM, Peter, FM [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List (E-mail) [EMAIL PROTECTED] Subject: Struts Faces ea validation XML error After copying all three JSF JAR to struts-faces/WEB-INF, and copying commons-logging-1.0.2.jar over WEB-INF/lib I got a validation error in the Struts Faces download. Is the validation XML correct? I only get errors like this when I forget to include /WEB-INF/validation.xml in my webapps -- can you make sure that is still present? Craig It is very weird because I have both `/WEB-INF/validation.xml' and `/WEB-INF/validation-rules.xml' in the right place, I also checked the `/WEB-INF/struts-config.xml' to make sure that validator plugin is correctly set. This is how I downloaded the struts-faces.jar ``as is' Something is wrong here. I copied the new validation.xml and validation-rules.xml from the original Struts example in 1.1 beta 3 release over to the Struts-Faces web app. Lo and behold, it works! org.apache.jasper.JasperException: Depends string email was not found in validator-rules.xml. void ---- ---- Mr. Brownstone, Appetite for Destruction, G R -- Peter Pilgrim, Struts/J2EE Consultant, RBoS FM, Risk IT Tel: +44 (0)207-375-4923 Visit our Internet site at http://www.rbsmarkets.com This e-mail is intended only for the addressee named above. As this e-mail may contain confidential or privileged information, if you are not the named addressee, you are not authorised to retain, read, copy or disseminate this message or any part of it. The Royal Bank of Scotland plc is registered in Scotland No 90312 Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB Regulated by the Financial Services Authority - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts Faces ea validation XML error
On Mon, 10 Mar 2003, PILGRIM, Peter, FM wrote: Date: Mon, 10 Mar 2003 17:18:25 - From: PILGRIM, Peter, FM [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List (E-mail) [EMAIL PROTECTED] Subject: Struts Faces ea validation XML error After copying all three JSF JAR to struts-faces/WEB-INF, and copying commons-logging-1.0.2.jar over WEB-INF/lib I got a validation error in the Struts Faces download. Is the validation XML correct? I only get errors like this when I forget to include /WEB-INF/validation.xml in my webapps -- can you make sure that is still present? Craig org.apache.jasper.JasperException: Depends string email was not found in validator-rules.xml. void org.apache.jasper.servlet.JspServletWrapper.service(javax.servlet.http.HttpS ervletRequest, javax.servlet.http.HttpServletResponse, boolean) JspServletWrapper.java:248 void org.apache.jasper.servlet.JspServlet.serviceJspFile(javax.servlet.http.HttpS ervletRequest, javax.servlet.http.HttpServletResponse, java.lang.String, java.lang.Throwable, boolean) JspServlet.java:295 void org.apache.jasper.servlet.JspServlet.service(javax.servlet.http.HttpServletR equest, javax.servlet.http.HttpServletResponse) JspServlet.java:241 ---- -- Peter Pilgrim, Struts/J2EE Consultant, RBoS FM, Risk IT Tel: +44 (0)207-375-4923 *** Visit our Internet site at http://www.rbsmarkets.com This e-mail is intended only for the addressee named above. As this e-mail may contain confidential or privileged information, if you are not the named addressee, you are not authorised to retain, read, copy or disseminate this message or any part of it. The Royal Bank of Scotland plc is registered in Scotland No 90312 Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB Regulated by the Financial Services Authority *** - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts-Faces
Found : I replaced commons-logging.jar with the commons-logging-1.0.2 one in WEB-INF/lib Now, I try to run one of my struts app using jakarta-struts-faces-0.3. A very simple jsp. I've added all the required jars, updated web.xml by including the JavaServer Faces Servlet Configuration and the required Tags : %@ taglib prefix=c uri=http://java.sun.com/jstl/core; % %@ taglib prefix=f uri=http://java.sun.com/jsf/core; % %@ taglib prefix=h uri=http://java.sun.com/jsf/html; % %@ taglib prefix=s uri=http://jakarta.apache.org/struts/tags-faces; % f:use_faces s:html locale=true body s.form ... h:command_button id=submit type=SUBMIT ... /s:form /body /s:html /f:use_faces When running this jsp, I get : 2003-03-09 19:33:36 StandardWrapperValve[jsp]: Servlet.service() pour la servlet jsp a généré une exception org.apache.jasper.JasperException: Cannot find FacesContext at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2 54) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja va:256) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja va:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180 ) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve. java:171) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:641) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172 ) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java :174) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne ction(Http11Protocol.java:392) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav a:619) at java.lang.Thread.run(Thread.java:536) - Root Cause - javax.servlet.ServletException: Cannot find FacesContext at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp l.java:533) at org.apache.jsp.customerFindAll_jsp._jspService(customerFindAll_jsp.java:76) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2 10) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja va:256) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at
