Adding custom navigation rules results in strange behavior

Hello,
We'd like to add navigation rules to our application. To avoid post-JHeadstart-generation-steps we created an extra faces-config-custom.xml file which contains the navigation rules. When adding this file to the web.xml and run the aplication we encounter strange behavior
- Errors are shown in duplicate
- 'Transaction completed' messages are not shown
Try adding the underneath faces-config-custom.xml to a standard HR demo project and you will get the same behavior.
(1) What is the reason of this strange behavior?
(2) How can we add custom navigation rules, without having to do post creation steps?
Regards Leon
[faces-config-custom.xml]
<?xml version="1.0" encoding="windows-1252" ?>
<!DOCTYPE faces-config PUBLIC
"-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN"
"http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config xmlns="http://java.sun.com/JSF/Configuration">
<navigation-rule>
<from-view-id>*</from-view-id>
<navigation-case>
<from-outcome>BezwaarVerzoeken</from-outcome>
<to-view-id>/pages/inboeken/BezwaarVerzoeken.jspx</to-view-id>
</navigation-case>
<navigation-case>
<from-outcome>LosseOpdrachten</from-outcome>
<to-view-id>/pages/inboeken/LosseOpdrachten.jspx</to-view-id>
</navigation-case>
</navigation-rule>
</faces-config>
[Add faces-config-custom.xml to web.xml]
<context-param>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/faces-config-custom.xml,...

Leon,
When you perform a drag and drop operation, JDeveloper adds the following lines to the faces-config.xml:
<lifecycle>
<phase-listener>
Oracle.adf.controller.faces.lifecycle.ADFPhaselistener
</phase-listener>
</lifecycle>
However, JHeadstart uses its own subclass of ADFPhaselistener, and defines the lifecycle element in JhsCommon-beans.xml. Due to a bug in ADF, ADF does not look for the lifecycle element in other files than faces-config, and adds its own element in faces-config.xml If you remove these lines, everything works fine again.
To prevent this from happening again, you can move the following entry from JhsCommon-beans.xml to faces-config.xml:
<lifecycle> <phase-listener>oracle.jheadstart.controller.jsf.lifecycle.JhsADFPhaseListener</phase-listener>
</lifecycle>
And then make a custom template for JhsCommon-beans.vm where you remove this entry.
Steven Davelaar,
JHeadstart team.

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     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
     at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
     at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
     at java.lang.Thread.run(Thread.java:595)
2006-08-17 15:29:16,875 DEBUG [com.sun.faces.context.FacesContextImpl] Adding Message[sourceId=searchForm:ratingField,summary=java.lang.IllegalArgumentException)Do you see where the problem comes from??
Julien.

Creating a custom component is causing a strange scoping issue

I am a fairly new user to Flash and Actionscript, but I have
a fair amount of experience working with C and Java. I'm currently
working with Actionscript 2 in Macromedia Studio 8. I was trying to
create a new component for a project I am working on, and I
followed the tutorial in the help and all testing works while I am
in context of the flash document where I export the component from.
However, I try testing my component in a new blank document and I
get some strange behavior.
I am able to create a component on the stage, and adjust the
properties perfectly fine. However, when I test the file, the
variables for colors go out of scope. That is, the adjustments I
made to the component through the parameters panel, and saw updated
on the stage aren't demonstrated at runtime. The Number variable I
used however is preserved. I did some traces, and it appears that
this is happening because at runtime in the new blank document, the
variables in the onEnterFrame method go out of scope, where they
weren't before.
It seems really strange to me that I should be able to edit
the color on stage but have it revert while it is running. My
intuition says that if it wasn't going to work in the new document,
that it shouldn't work in either case.
Anyway, here is the code for the .as file, I hope I'm just
doing something stupid.

There seems to be a little confusion here. Think of it this way:
A basic UIComponent by itself is not visible; you can add something you can see to it to make a visual custom component. For example, a ComboBox component is a UIComponent with a ComboBox added to it.
The UIComponent is the lightest weight component available from which you can create other components. I use it as the base for custom components that the user cannot see, like a data manager.
HTH,
Carlos

Strange behavior with Collections

Hello!
I have a - from my point of view - strange behavior with a List (same also applies to Vector, LinkedList, and others):
List<String> myList = new myList<String>;
myList.add("One");
while (true) {
try {
System.out.println(myList.size());
throw new Exception();
} catch (Exception e) {
e.printStackTrace();
}And the result is 1, 2, 2, 2, ...although I added only one element. The two elements in the List point to the same object.
What could case this issue?
Regards,

len00x wrote:
List<String> myList = new myList<String>;This doesn't even look like it will compile for at least one reason, easily two.

Strange behavior of Content area

Hello everybody,
I'm working with Portal 3.0.8. I've installed czech language on it.
What did I do is:
1) I made new look for my navigation bar (new image and basic items). And it worked fine. I worked in English!
2) Change language to Czech.
3) Show my content area and there were old items on navigation bar. But style was new. If I navigate to any sub-folder, the look is OK. In the root folder I can't change anything. I can add new items only, though it is possible to see them only when I work in English.
Does anybody know the reason of this strange behavior and what I should do? Thanks for your help!
Petra :-)
P.S.: You can use this email address: [email protected]

Sorry for copy paste problem. b1 should be replaced with y1 and c1 with z1.
Here is the correct code.
create table xmltab of XMLType XMLTYPE store as binary xml;
Table created.
insert into xmltab values('<x><y>y1</y><z>z1</z></x>');
1 row created.
select x.object_value
from xmltab x
where extractValue(x.object_value,'/x/y')='y1' and
extractValue(x.object_value,'/x/z')='z1' ;
OBJECT_VALUE
<x>
<y>y1</y>
<z>z1</z>
</x>
The following query doesn't return any row!!
select x.object_value
from xmltab x
where extractValue(x.object_value,'/x/y')='y1' and
extractValue(x.object_value,'/x/z')='z1' for update;
no rows selected
select x.object_value
from xmltab x
where extractValue(x.object_value,'/x/y')='y1' for update;
OBJECT_VALUE
<x>
<y>y1</y>
<z>z1</z>
</x>
select x.object_value
from xmltab x
where extractValue(x.object_value,'/x/z')='z1' for update;
OBJECT_VALUE
<x>
<y>y1</y>
<z>z1</z>
</x>
The following one returns correct result !!
select x.object_value, extractValue(x.object_value,'/x/y'), extractValue(x.object_value,'/x/z')
from xmltab x
where extractValue(x.object_value,'/x/y')='y1' and
extractValue(x.object_value,'/x/z')='z1' ;
OBJECT_VALUE
EXTRACTVALUE(X.OBJECT_VALUE,'/x/y')
EXTRACTVALUE(X.OBJECT_VALUE,'/x/z')
<x>
<y>y1</y>
<z>z1</z>
</x>
y1
z1
I get expected result for all the cases if the table is created in the following way
create table xmltab of XMLType;
Can anyone tell me why does select for update behaves in this strange way for binary xml table?

How to add the ability to put EL expressions in Navigation Rules

I had a need to dynamically determine what page to return to in a JSF application. There has to be an easier way, but here's how I wanted to do it. I wanted to put an EL expression in my <to-view-id> nav rules in the JSF config file (e.g. faces-config.xml). This isn't allowed. So I built my own custom ViewHandler to do it.
1) Define the ViewHandler in faces-config.xml:
     <application>
          <view-handler>com.msd.tts.pluggable.MyDynamicViewHandler</view-handler>
     </application>2) Create the class:
package com.msd.tts.pluggable;
import java.io.IOException;
import java.util.Locale;
import javax.faces.*;
import javax.faces.application.ViewHandler;
import javax.faces.component.UIViewRoot;
import javax.faces.context.*;
import javax.faces.el.ValueBinding;
import com.sun.faces.util.Util;
* Adds ability to put EL expressions in the <to-view-id> Navigation Rules in JSF
* configuration file (faces-config.xml).
* @author          Craig Peters
* @version          1.0
public class MyDynamicViewHandler extends ViewHandler {
     * The original handler we are customizing.
    private ViewHandler prevHandler = null;
    /** Creates a new instance of MappingViewHandler. By including
     * a parameter of the same type, we encourage the JSF framework
     * to pass a reference of the previously used ViewHandler. This way
     * we can use all the previous functionality and override only the
     * method we are interested in (in this case, the getActionURL() method).
     public MyDynamicViewHandler(ViewHandler prevHandler) {
          this.prevHandler = prevHandler;
     @Override
     public String getActionURL(FacesContext context, String viewId) {
          return prevHandler.getActionURL(context, viewId);
     @Override
     public Locale calculateLocale(FacesContext context) {
          return prevHandler.calculateLocale(context);
     @Override
     public String calculateRenderKitId(FacesContext context) {
          return prevHandler.calculateRenderKitId(context);
     @Override
     public UIViewRoot createView(FacesContext context, String viewId) {
          return prevHandler.createView(context, viewId);
     @Override
     public String getResourceURL(FacesContext context, String path) {
          return prevHandler.getResourceURL(context, path);
     @Override
     public void renderView(FacesContext context, UIViewRoot viewToRender)
               throws IOException, FacesException {
          String result = viewToRender.getViewId();
          if (Util.isVBExpression(viewToRender.getViewId())) {
               ValueBinding vb = context.getApplication().createValueBinding(viewToRender.getViewId());
               result = vb.getValue(context).toString();
          if (result.charAt(0) != '/')
               throw new IllegalArgumentException("Illegal view ID " + result + ". The ID must begin with '/'");
          viewToRender.setViewId(result);
          prevHandler.renderView(context, viewToRender);
     @Override
     public UIViewRoot restoreView(FacesContext context, String viewId) {
          return prevHandler.restoreView(context, viewId);
     @Override
     public void writeState(FacesContext context) throws IOException {
          prevHandler.writeState(context);
}3) Use EL in navigation rules:
     <navigation-rule>
          <from-view-id>/CommonForm.jsp</from-view-id>
          <navigation-case>
               <to-view-id>#{bean.caller}</to-view-id>
          </navigation-case>
     </navigation-rule>The "bean.caller" method will have saved the page to go back to.
Comments are welcome. I just didn't see any other way to dynamically go back to an arbitrary page.
Thanks.

CraigRPeters wrote:
Comments are welcome.Nice stuff. But that means that navigation is hardwired in the backing bean instead of faces-config.xml. Forget this comment if you've maintained a propertiesfile/configurationfile for that.
I just didn't see any other way to dynamically go back to an arbitrary page.You can declare more than one from-outcome and/or from-action for one from-view-id.

Strange behavior when shutting down - only works once

Hi there,
I'm taking advice from around the forum to create a shutdown button for my VI. When the user sends the shutdown command, the loop stops all processes running and turns off all heaters. Then when this is complete it passes a shutdown variable to all loops allowing them to close. This seems to work perfectly once, but when I hit run again and test it again, it fails. If I abort the VI and restart again, the shutdown works. I can't quite figure out what the behavior is doing here.
Attached is my program, it's a little messy but everything works, and it has to be added to by someone who isn't me, so I tried to keep everything clear and seperate. If anyone's got any ideas as to what is causing this strange behavior I'd love to hear it.
Thanks,
Chris.
Attachments:
Main VI.vi ‏259 KB

First of all, your event loop should look something more like this. Otherwise you won't exit the loop until another event comes through.
Secondly, I think you are writing to the wrong control here (this is in your timed loop). I have no clue what is in the subVI, but I don't think it should be looking at the Shutdown PB control. That control should be in it's event case. But here you are trying to cause the shutdown event, but you are writing to the wrong control.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines
Attachments:
Event Structure issue.png ‏10 KB
wrong property node.png ‏3 KB

Adding custom navigation rules results in strange behavior

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