Skeleton togglebutton.jsp rendering

Hi,
We've been doing some tests on when a skeleton jsp and found the
titlebar.jsp and the togglebutton.jsp always run, regardless of whether
you have a titlebar, or even any buttons to render. Is it possible to
stop these from running in the cases where it makes no sense for it do so?
To explain why this has caused a problem for us, we have put a portlet
in a .portion file which we include in the header. We have modified the
togglebutton.jsp file to check for the mode and maximize the window if
it is in edit mode and go to normal if it is leaving edit mode. We have
replace the togglebutton with the windowUrl to do this. The problem
occurs when the framework attempts to run togglebutton.jsp for the
portlet in the header throwing a nullpointerexception with the
concatenated stack trace below.
<Feb 26, 2004 12:32:18 PM EET> <Error> <netuix> <BEA-420042> <The
control com.be
a.netuix.servlets.controls.window.Edit could not be rendered properly
due to the
following error:
java.lang.NullPointerException
at java.net.URLEncoder.encode(URLEncoder.java:185)
at com.bea.portlet.GenericURL.addParameter(GenericURL.java:701)
at com.bea.portlet.GenericURL.addParameter(GenericURL.java:644)
at com.bea.portlet.GenericURL.addParameter(GenericURL.java:627)
at com.bea.portlet.WindowURL.setWindowLabel(WindowURL.java:138)
at com.bea.portlet.WindowURL.<init>(WindowURL.java:86)
at com.bea.portlet.WindowURL.createWindowURL(WindowURL.java:54)
at
jsp_servlet._framework._skeletons._default.__togglebutton._jspService
(togglebutton.jsp:20)
Granted, we can solve this by just catching the exception, but it just
seems kind of strange that the titlebar.jsp and the togglebutton.jsp run
when there is no titlebar to render. I assume the rest of the framework
works in the same way.
Cheers
Dennis

Markus,
Thanks for the suggestion. The problem is easy enough to overcome, I
just wanted to stress that I thought it was strange that titlebar.jsp
and the togglebutton.jsp should even be attempted to be rendered when
there is no titlebar on the portlet that is currently being rendered.
It just seems it would be far more optimal to not run the jsps.
We ran some tests and it seems that the files are always called
regardless of what is in the rendering jsps. So regardless of whether
there is a taglib marker to render the children or not, they call to
render the children is always made by the framework anyway.
Dennis
Markus Blumrich wrote:
Dennis - if I understand your problem correctly - here is a suggestion which
I've used to make the window framework / titlebar disappear. Create a
"theme" with alternate versions of the skeleton files and basically comment
out all the HTML generation. I agree - you need to modify all of them (down
to togglebutton.jsp etc), but they will be independent instances of those
files within the "theme"'s skeleton directory.
hope that helps,
Markus
"Dennis" <[email protected]> wrote in message
news:[email protected]...
Hi,
We've been doing some tests on when a skeleton jsp and found the
titlebar.jsp and the togglebutton.jsp always run, regardless of whether
you have a titlebar, or even any buttons to render. Is it possible to
stop these from running in the cases where it makes no sense for it do so?
To explain why this has caused a problem for us, we have put a portlet
in a .portion file which we include in the header. We have modified the
togglebutton.jsp file to check for the mode and maximize the window if
it is in edit mode and go to normal if it is leaving edit mode. We have
replace the togglebutton with the windowUrl to do this. The problem
occurs when the framework attempts to run togglebutton.jsp for the
portlet in the header throwing a nullpointerexception with the
concatenated stack trace below.
<Feb 26, 2004 12:32:18 PM EET> <Error> <netuix> <BEA-420042> <The
control com.be
a.netuix.servlets.controls.window.Edit could not be rendered properly
due to the
following error:
java.lang.NullPointerException
at java.net.URLEncoder.encode(URLEncoder.java:185)
at com.bea.portlet.GenericURL.addParameter(GenericURL.java:701)
at com.bea.portlet.GenericURL.addParameter(GenericURL.java:644)
at com.bea.portlet.GenericURL.addParameter(GenericURL.java:627)
at com.bea.portlet.WindowURL.setWindowLabel(WindowURL.java:138)
at com.bea.portlet.WindowURL.<init>(WindowURL.java:86)
at com.bea.portlet.WindowURL.createWindowURL(WindowURL.java:54)
at
jsp_servlet._framework._skeletons._default.__togglebutton._jspService
(togglebutton.jsp:20)
Granted, we can solve this by just catching the exception, but it just
seems kind of strange that the titlebar.jsp and the togglebutton.jsp run
when there is no titlebar to render. I assume the rest of the framework
works in the same way.
Cheers
Dennis

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"ellen" <[email protected]> wrote in message
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>
Any ideas?
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Edited by: shogo2040 on Dec 18, 2008 7:11 PM : I added more detail to the Subject

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Thanks!

This is in continuation to this topic:
http://forum.java.sun.com/thread.jsp?forum=427&thread=4
4850&tstart=15&trange=15
As I look further into JSP 2.0, I am more and more
sold to the idea of encoding JSF components thru JSP
2.0 tag files and/or SimpleTag handlers ...
As has been pointed out by others, this isn't feasible at all unless JavaServer Faces were to choose JSP 2.0 as the minimum platform. However, even if that were to happen, there are some crucial problems in at least two dimensions:
* JavaServer Faces integrates nicely with JSP, but does not
require it. Therefore, the encoding functionality of a
component (or renderer) needs to operate correctly even for
a non-JSP rendering environment. How can that be reconciled
with a desire to use JSP-specific rendering capabilities?
* JSP 2.0 is very cool, but it doesn't deal at all with the
issue of handling an incoming request. Therefore,
a solution that uses JSP as a templating environment (which
violates the "don't require JSP requirement as mentioned in
the previous paragraph"), will STILL require some non-JSP
functionality to do the decoding, validation, and event handling
parts of the application. To me, it does NOT seem like forcing
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would make JavaServer Faces easier to use.
Implementation technology aside, the logic of decoding (what request parameters do I look at?) is very tightly coupled with the logic of encoding (what markup do I generate?). Splitting those two aspects of the problem into different source files, implemented with different technologies, and requiring changes in both placeds when you make changes, seems like something that goes against all the best practices design principles we've all been learning over the past several decades.
If JSP had a way to express the functional logic needed for handling events, validations, and calls to business logic, I might be more sympathetic to this approach -- but it doesn't. It is also interesting to note that Struts (among many other frameworks) has embedded markup generation for user interface components in Java logic (in the case of Struts, it's in the HTML tag library) from the very beginning. Why should it be OK there (and 75,000 downloads per month says it's pretty popular) and not in JavaServer Faces?
Further, why should a page author that is just using components give a rip what the implementation technology is? Isn't that a concern solely of the component writer? I would contend that anyone who builds a non-trivial component, in any technology framework, is going to need functional programming knowledge (be it Java, VB, C#, some XML-based variant, JavaScript, whatever) anyway. Rendering is about 20% of the problem -- the 80% that still needs to be solved is going to require programming knowledge anyway. And JSP, even with all the fantastic things added in 2.0, doesn't address any of those needs.
Craig McClanahan

Changing look & feel in jsp

Hi,
This is regarding to change the look & feel using jsp
i have create two .laf files (each contain differnt skin & skeleton)
in .jsp
a) how to show the look & feel names dynamically? (in dropdown)
b)when i select a particular look & feel, then that look & feel has to apply for the desktop.
how to achieve this. pls let me know.
Thanks,
Natesh.

I guess the OAM is the Oracle Access Manager of oracle's fusion middleware? Also 'webgate plugin' and 'access servers' do point me that way.
This is the linux forum. You should ask your question probably in the identity management forum: Identity Manager

How can i increase performance JSP with database?

Hi,
I am working a forum.
I have been facing a problem.
i am getting collection of records from sql server database to jsp page. here all the records to take long time (*delayness jsp with database*).
plz any bodies know that increase the permance, tell me.
thanks & regards,
k.s.kumar

again very bad idea never use Put DB Code or Business Logic or Special Service requests inside the servlets/backing beans.
Ideally the below is the method which is recommended for a Peformant J2EE application which focuses at modulality,configurablity,scalablity & performance.
http://java.sun.com/blueprints/corej2eepatterns/Patterns/index.html
Anyways,it might be a costly in terms of investment.Ideally i personally fell the below way/patterm could be comparable.

STEP 1 --> VIEW RENDERED(JSP renders view using a View Object/Objects)
STEP 2 --> USER (Fills Forms accordingly and request for an action)

STEP 3 --> Controller(Servlet+Backing Bean)
STEP 3.1 ---> Mapps the request made into a View Object & Scopes it (Done by servlet )
STEP 3.2 ---> validation of the data in the VO (and servlet is responsible to find appropriate Backing Bean to pass on the respective View Object)
STEP 3.3 ----> Backing Bean takes help of a ServiceLocator Object(Singleton Object) and gets appropriate Business Object which takes care of all the appropriate business rule(Managed by Specific Containers)


STEP 3.4 ---->Backing bean passes on respective View Object to the Business Object and Business Object apply business rule on the data recievd from the Backing bean and sends appropriate DTO to DAO Object(Singleton Object)
STEP 3.5 ----> DAO executes responsible DB query and returns a DTO/Collection of DTO to Business Object.
STEP 3.6 ----> Business Object apply business rules on the data and then passes it back to backing bean.
STEP 3.7 -----> Backing Bean receievs appropriate DTO/Collection of DTO sent by Business Object Update the View Object Accordingly.
STEP 3.8 -----> Depending on the results return by Business Object the backing bean returns to reference appropriate JSP to forward/redirect.
STEP 3.9 -----> Servlet identifies the reference returned and forward/redirects accordingly.
STEP 4 ---> Repeat STEP 1
NOTE: One can make use of any builtin frameworks(like struts,JSF,tapestry,Spring MVC,etc or your custom built framework in VC layers, EJB or Spring IoC or Custom Built Component Layer handling business objects and any ORM like hibernate,Oracle Toplink,Ibatis,JDO,JPA or specific custom devoloped DAO layer) to do this job.
Might Sound bit complicated but is a better way to plug & play with each layer and can enusure other layer is not distrubed because of change in one layer,distributes the load on respective layer & so on.
Hope that sounds logical
REGARDS,
RaHuL

TagLibs, JSPs, Portlets, and wwjps.xml

Hello All,
I am attempting to try the examples in the Integrating JavaServer Pages with Oracle 9iAS Portal white paper from April 2002, and am trying to create a simple internal JSP to call a portlet.
Using their most simple example, I receive the following error:
oracle.webdb.utils.PortalExceptionImpl: Error: UsePortalTag:
snip
caused by: oracle.webdb.utils.PortalExceptionImpl: Error loading application configuration: /u01/app/.../portal/WEB-INF/wwjps.xml
However, upon searching the filesystem I cannot find any such wwjps.xml -- there is only a web.xml in the specified directory. In the web.xml, there is the following set of directives:
<context-param>
<param-name>oracle.webdb.service.ConfigLoader</param-name>
<param-value>/WEB-INF/wwjps.xml</param-value>
<description>This parameter specifies the location of the JPS configuration file</description>
</context-param>
But again, this wwjps.xml file does not exist. Does anyone have any insight as to how I may proceed? All I want to do is end up with an external JSP rendering a simple portlet.
Thanks so much,
Rums.

Hi,
I have the same Problem.
Any news/updates?
Greets,
Even

Can JSP be used to simulate Multi Document Interface?

I am new to JSP and I am trying to reimplement (migrate) a PowerBuilder based GUI application, with heavy use of "Multi Document Interface" (multi frames).
My questions are:
1- Does JSP supports "Multi Document Interface (MDI) like" functionality? Can anyone send me a simple JSP example where a click on a one JSP page causes multiple frames (pages) to appear in the same browser?
2- How one can implement Multi Documment Tabbed Interace? This is where JSP renders more than one page each with a tab. Clicking a tab brings its corresponding page.
Thanks again,
Devel1

JSP is loaded in a web-browser. Hence there is no MDI possibility. What you can do is for each click open a new window. Consider each window like a separate MDI form.
Otherwise you can generate an applet that uses Swing/awt and use the MDI capabilities in these technologies. Of course this is a much more cumbersome method than the previous one.

Skeleton togglebutton.jsp rendering

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