No JSTL FUNCTION support

Does Jdev support JSTL FUNCTION taglib?
such sd EL ${fn:substringAfter("...") }
I did not find it on the component palette.
thanks

Refer to
http://www.oracle.com/technology/products/jdev/tips/schalk/jstl_sql/jstl_sql.html

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Jstl function tags question

I'm trying to output the size of a Vector in jstl 1.1 like
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@ taglib uri="/tags/struts-html" prefix="html" %>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<%@ include file="header.jsp"%>

<c:out value="${fn:length(aliasesInfo.aliases)}" />but when I run my app I get tomcat errors
org.apache.jasper.JasperException: <h3>Validation error messages from TagLibraryValidator for c in /jsp/aliases/confirmAliases.jsp</h3><p>87: tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${fn:length(aliasesInfo.aliases)}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported.</p>Am I declaring the taglib correctly for the fn prefix?

Hi ,
i am uday
i am very new to JSLT, i have no idea about it..
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Trouble with JSTL functions uri

I have JSTL 1.1 installed, am using J2EE 1.3 on Websphere 5.0 and am referencing 2.3 DTD in my web.xml. I have the jstl.jar, standard.jar, jdbc2_0-stdext.jar, xalan.jar and xercesImpl.jar in WEB-INF/lib
I can successfully use the core JSTL functions with
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %> but have not been able to get the functions URI to work.
I have tried the two listed below
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<%@ taglib uri="http://java.sun.com/jstl/functions" prefix="fn" %>
but get the error:
[Servlet Error]-[File "http://java.sun.com/jsp/jstl/functions" not found]: org.apache.jasper.JasperException: File "http://java.sun.com/jsp/jstl/functions" not found
Can someone please tell me what I am doing wrong or if I am trying to use something that I shouldn't with my setup. I have only started using JSTL this week and have a lot left to learn.
Thanks!

I want to use JSTL 1.1 tags if possible. Not possible given your environment.
Its on the header of the taglibs site:
Standard-1.1 (JSTL 1.1) requires a JSP container that supports the Java Servlet 2.4 and JavaServer Pages 2.0 specifications. (http://jakarta.apache.org/taglibs/doc/standard-doc/intro.html)
Websphere 5.0 supports only Servlet 2.3 and JSP 1.2. Thus you can only use JSTL1.0 with it. JSTL 1.0 does not define these functions.
Sorry, but thats the way things are.
Cheers,
evnafets

JSTL Expression Support For All Attributes

There are mentions of JSTL expression support for the
modelReference attribute within the specification (although I have found problems in the EA3 in this regard), but
but I did not find any mention of supporting the same for all
attributes. To me, this seems very important, especially for
attributes like "onClick" where I might want to do something special:
<c:foreach ...
<h:graphic_image modelReference="model.myImage" onClick="onDelete({status.index})"/>
</c:foreach>
In the case above, this would allow me to call a single javascript function that triggers a delete action based on the current index within a list based view.
There are many cases that I can think of that this would be incredibly useful.

maybe you have forgotten the $
onClick="onDelete(${status.index})"
or I've misunderstood something...

How to find out what are the functions supported by string class

Hi,
Can any one let me know how to find what are all the functions supported by the string class in standard(STL) library on solaris.
Regards,
Vignesh

1. Any C++ textbook that covers the Standard Library will tell you about the standard string class. A good tutorial and reference for the entire Standard Library is "The C++ Standard Library" by Nicolai Josuttis, published by Addison Wesley.
2. WIth Sun C++, the command
man -s3C++ basic_string
provides documentation for the default libCstd version of the Standard Library.
3. You could look at the <string> header itself. I don't recommend that approach.

SQL Functions Supported by RDBMS Adapter

Hi,
Where can I find the list of SQL Functions supported by RDBMS Adapter?
I am retrieving date from Oracle 9i using RDBMS Adapter 8.1 SP2.However when I use any SQL Function (like to_char, to_date) in select query the service creation fails with a parsing exception.
Please help me resolving this.I want a date to be selected as a string in a particular format.
Thanks,
Vishvjit

Sorry,just got the resolution in Known Limitations of the adapter Release Notes. Actually we have to create a service of arbitory sql for using SQL Functions in the query.

JSTL functions in JDev 10g (9.0.5 preview)

Hi everybody,
I don't see the JSTL functions taglib available in the component palette for a JSP page. Is it something that will be present in the production version ?
It seems that this taglib is also not available within OC4J 10.0.3 preview. So a page containing such a line will not compile:
<%@ taglib uri="http://java.sun.com/jstl/functions" prefix="fn" %>Any comments ?

Hi Shay,
The new how-to covers JSTL SQL. What I'm interested in is JSTL functions.
I want to be able to do something like:
<%@ taglib uri="http://java.sun.com/jstl/functions" prefix="fn" %>
<c:if test="${fn:length(param.username) > 0}" >
</c:if>But maybe it's something relative to JSP 2.0 and not only to JSTL.

Does the Timer() function support multithread?

Hello,
In my application, there would be more than 1000 conversations to be monitored. I am going to design a woker thread for each conversation to determine the timeout of the communication, so I must using the timer mechanism. Due to just can create (max )16 async timers, so I want to use Timer() in the worker thread. I'd like to know if the function support multithread and if it will not be disturbed in a thread?
David

Hi David,
The 'timer' used by the Timer() function is global and not thread specific. Note that Timer() returns the number of seconds elapsed since the FIRST call to the Timer() function. This is independent of the thread where the FIRST and current calls take place. So, the values returned are kind of a global 'time' since the first Timer() call in your program. I would recommend that you FIRST call Timer() in your main thread before running your other threads and then the other values returned in any thread are the 'seconds' since this call.

DB Functions Supported in UNX

Are DB Functions supported in UNX universes? We are on BI4.1 SP3 and trying to use an Oracle DB function that will return a numeric field based on the user who is logged into Business Objects:
OWOD_DW.GET_BUDGET(@Variable('BOUSER'))
The GET_BUDGET is an Oracle DB function that expects the user id, checks the budget amount field in db table, and returns budget amount and sets it to Budget object in universe.
We have UNV universes that call Oracle DB functions, for example calculating number of working days. The processing is done on DB side and returns number of days and continue to work fine...
Thank you for your time.
~Molly

Thank you both for your answers!
@Odie_63: Your sample worked for me, as well. I was able to find the root cause of why my statement had not worked: I was using a wrong path. Interestingly enough though, the correct result was returned if I did not use a function in the path, so it masked the root problem.
sample XML document (shortened) : <ObjectEvent>
<action>ADD</action>
</ObjectEvent>correct path:SQL> SELECT EVENT_ID, ACTION   FROM EVENTSCHEMA.event x,     XMLTABLE ('/*' passing EVENTXMLTEXT
                 COLUMNS
                        ACTION VARCHAR(10) PATH 'action'
EVENT_ID ACTION
      1004 ADDwrong path, but still works:SQL> SELECT EVENT_ID, ACTION   FROM EVENTSCHEMA.event x,    XMLTABLE ('/*' passing EVENTXMLTEXT
                 COLUMNS
                        ACTION VARCHAR(10) PATH '/*/action'
EVENT_ID ACTION
      1004 ADDfunction applied to the correct path works: SQL> SELECT EVENT_ID, ACTION    FROM EVENTSCHEMA.event x,   XMLTABLE ('/*' passing EVENTXMLTEXT
                 COLUMNS
                        ACTION VARCHAR(10) PATH 'fn:lower-case(action)'
EVENT_ID ACTION
      1004 addfunction applied to the wrong path does not work: SQL> SELECT EVENT_ID, ACTION FROM EVENTSCHEMA.event x,    XMLTABLE ('/*' passing EVENTXMLTEXT
                 COLUMNS
                        ACTION VARCHAR(10) PATH 'fn:lower-case(/*/action)'
EVENT_ID ACTION
      1004Thanks again! I'm glad I can use the XQuery functions and don't have to find a workaround.
-- Daniela

JSTL Function Causing JDev Designer to Hide Field

I added a JSTL function to an OutputText field in an ADF Web application. The function itself works at run-time; however, in the JDev Designer, the Designer does not display the field.
What I did was this:
1. Added the namespace prefix to the page fragment:
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:c="http://java.sun.com/jsp/jstl/core">
2. Added the function to an af:outputText. To keep this post simple, in the below example i just used 'MMM' as the fn:toLowerCase() param value:
<af:panelLabelAndMessage label="#{viewcontrollerBundle.LOGGER_PROTOTYPE_2}" id="plam4"
rendered="#{bindings.Type1.inputValue !=2 and bindings.MessageLevelId.inputValue != 0}">
<af:outputText value="#{fn:toLowerCase('MMM')}" id="ot4"
inlineStyle="font-family:'Courier New', Courier, monospace;"/>
</af:panelLabelAndMessage>
At runtime 'MMM' is correctly displayed as 'mmm'. However, the field is not visible in the JDev Designer - which will make this confusing to maintain. Is there something I am doing wrong, or am i missing a step?
Versions: JDeveloper 11.1.1.6, Linux. JSTL functions library is for v. 1.2.
Thanks for your help.

There is no JDev version 11.1.1.6.0 (at least officially).
Anyway, can you check what you see if you add some static text in front of the EL.
I guess jdev tries to calculate the value, fails and you end up getting nothing (or in case of an outputText with no text which means nothing).
Timo

Where can I find a list of NI-DAQ functions supported over the RDA server?

Hello,
I am developing an application in Microsoft VisualC++ for PXI6071E MIO card remotely using RDA server.
What I found out is that not all the functions described in the "Traditional NI-DAQ Function Reference Help" shipped with NI-DAQ version 7.0 are supported over the RDA server (e.g. Init_DA_Boards, or AO_Configure).
Is there any document available where the functions supported by the RDA server are listed? It will help me a lot instead of manually executing all the needed functions and building this list by myself.
Thank you in advance,
Silvius
Silvius Iancu

Hello Sarah,
Thank you very much for the link.
Based on this article I included the easyio.h and easyio.lib from LabWindows/CVI into my VC++ project and I managed to perform the needed operations using Easy IO function calls.
As a result of my own tests, the Analog Input functions provided by nidaq are not supported by the RDA server, but the General Purpose Timer/Counter functions are well supported.
Hopefully the future versions of NI-DAQ will be fully supported by the RDA server.
Thank you for your help,
Silvius
Silvius Iancu

Does JSTL functions work in custom Spaces Page Style ?

I am trying to create a custom page style and have to write some logic where I have to use fn:containsIgnoreCase. When I create pages that use this Page Style, it throws a white page and doesnt work.
I have also added the below in the root
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:c="http://java.sun.com/jsp/jstl/core"
When I remove the fn:containsIgnorecase, It works fine.
My version of Webcenter Spaces is 11.1.1.6
Edited by: Rohith puchalapalli on Apr 9, 2013 3:39 PM

Hi.
You can use JSTL perfectly in ADF. I don't share the opinion of Oracle not recommends... there are a lot of official pages saying how to use JSTL in ADF.
<af:outputText value="#{fn:length(yourList)}"/>Yannick is saying that you can't mix lifecycles. Take care using $ or # operators :).
For example if you are using a JSTL c:forEach. Next code is going to crash:
<c:forEach var="..." value="${list}">
<af:outputText value="#{list.item}"/>
</c:forEach>Because # is evaluated in prepareModel phase and $ while rendering.
I hope this help you.

Does Information Designer Tools's aggregate awareness function support OLAP

Hi...
Does Information Designer Tools's aggregate awareness function support OLAP ??
Thanks

To see which ODBC function DG4ODBC is looking for and unixODBC isn't supporting it would be best to get an ODBC trace file. But as your unixODBC driver (unixODBC-2.2.11-10.el5) is outdated and these old drivers had a lot of issues when being used on 64bit operating systems (for example wrong sizeofint etc). So best would be to update the unixODBC Driver manager to release 2.3.x. More details can be found on the web site: www.unicodbc.org
- Klaus

Generics for Higher Order Function Support

Perhaps I'm not looking hard enough, but it seems that all arguments for generics relate to containers. Has anyone considered the impact of generics and at least rudimentary type inference on higher order function support.
Consider the case in which you want to execute a particular operation under time constraints, or with specified cleanup operations to occur afterwards, for example:
interface DBOperation
void doOperation(Connection con);
void DoDBOperation(DBOperation op)
Connection c = acquireConnection()
try
    op.doOperation(con);
finally
    c.release();
}One would then call:
DoDBOperation(new DBOperation() ...);Now what happens if I want to make a DBOperation that returns an integer and throws a specific checked exception. I would need to define an alternative DBOperation2 class, and rewrite DoDBOperation for each possible permutation of checked exceptions, and for each return type.
Or one would just have:
interface DBOperation
Object doOperation(Connection inCon) throws Exception
}But now when I call it, I need to catch Exception, not just the ones I specifically throw, and I have to cast the return type.
Clearly, a generics mechanism with type inference could infer the appropriate throws and return type for the DoDBOperation call, given the compile-time type of the parameter.

Ahh, i think I'm starting to see. My guess is that to achieve that in the current generic Java proposal, it would need to look something like:
public interface OperationInterface<T extends Object, X extends Exception>
   <T> doOperation() throws <X>
public class LoggedOperation<T extends Object, X extends Exception> implements OperationInterface<T, X>
OperationInterface<T, X> delegatee;
public LoggedOperation<T extends Object, X extends Exception>(OperationInterface<T, X> d)
    delegatee = d;
<T> doOperation() throws <X>
    logStart();
    try {
      return delegatee.doOperation();
    finally {
      logEnd();
Or somesuch. The important thing to note is that the genericity is on the objects, not on their methods. So it can behave a little like you suggest, provided the class is created properly in the first place.
Note: I haven't tried the demo version of the generic compiler, so I'm sure every line of that code is wrong.

JSTL function tld

I'm using the ${fn:substring()}
If I include it like this it works fine.
<%@taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
but I much prefer to point the uri to something in my WEB-INF directory. This is for an intranet application and assures that an internet connection is not required for the application to run.
What would the correct tld be?

No change is required.
You are already using the correct URI, and it is not using the internet to look it up.
Note that this is a URI and not a URL.
The difference? In a nutshell:
URI is a unique identifier
URL specifies a location on the internet.
Take a look at the JSP Specification section 7.3.2
Basically it says that it does not look up the reference on the internet, but searches all tld files in scope to see if they specify the appropriate URI. tlds in scope include any under WEB-INF directory, and any in jar files.
The tld in this case is bundled in the file standard.jar
It is called fn.tld.
Inside that file:
<description>JSTL 1.1 functions library</description>
<display-name>JSTL functions</display-name>
<tlib-version>1.1</tlib-version>
<short-name>fn</short-name>
<uri>http://java.sun.com/jsp/jstl/functions</uri>And that is how it resolves http://java.sun.com/jsp/jstl/functions to the functions tld: fn.tld.
Cheers,
evnafets

No JSTL FUNCTION support

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