Problem with custom tag attribute types

Hi,
I try to figure out how to pass an attribute to a custom tag that is of a type other than "String"?
In my case, I should pass an attribute with a type of "java.util.ResourceBundle".
My tag looks like this:
<tt:cs sel="ab" ce="<%= java.util.ResourceBundle.getBundle("de", Application.getApp().getLocale())%>" />
I always get the message that the attribute ce is empty.
Isn't it possible to have attirbutes that are of an other type than string? How could I solve this problem?
Thanks a lot!
Regards Patrick

In JSP 1.2, in the Tag Library Descriptor, you can specify a tagt attribute as
<attribute>
   <name>attr1</name>
   <required>true|false|yes|no</required>
   <rtexprvalue>true|false|yes|no</rtexprvalue>
   <type>fully-qualified_type</type>
</attribute> Notice the XML element <type>fully-qualified_type</type>
Not sure if you can do this in JSP 1.1

Similar Messages

Problem with custom tag

I have written a custom tag that I am having problems with. It works on some machines, but not on others. I have a page that uses many 'standard' tags. I have correctly set the URI etc, because all of my other tags work. However, on some machines, my custom tag gives me an error:
attribute does not support request time values
I'm assuming that I have the correct versions of standard.jar etc because all of the regular jstl 1.1 tags work. It is just my custom tag that throws an error.
here is the .tld for my tag:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
     <tlib-version>1.1.2</tlib-version>
     <jsp-version>1.2</jsp-version>
     <short-name>My custom tag</short-name>
     <uri>http://my.custom/tags</uri>
     <tag>
          <name>breadcrumb</name>
          <tag-class>tag.BreadcrumbTag</tag-class>
          <body-content>JSP</body-content>
          <attribute>
               <name>breadcrumbs</name>
               <required>true</required>
               <rtexprvalue>false</rtexprvalue>
               <description>Pass in the list of Breadcrumbs containing the actual information
about what tags need to be rendered on the page.</description>
          </attribute>
     </tag>
</taglib>
Any thoughts/help greatly appreciated...

I encountered the same problem in our environment. I did the same thing as
          James. Simply re-initialize all variables in the do end tag.
          Also, with the nested tags you use you may also need to implement cloneable
          in the inner tag if the outer tag keeps references to all the inner tag
          instances.
          For instance if the outer tag kept a vector of references to the inner tag,
          then you would need to use clone() on the inner tag before adding it to the
          vector.
          "James Lynn" <[email protected]> wrote in message
          news:3af05d29$[email protected]..
          > > But
          > > with WL 6.0, the cell tag handler reuse the same instance each time the
          > cell tag
          > > is called and the member field is not reset
          >
          > I had the same problem. As a work around, I reinitialize everything in my
          > doEndTag() method and it works.
          >
          >
          > --
          > James Lynn - Lead Software Architect
          > Oakscape - Java Powered eBusiness Solutions <http://www.oakscape.com/>
          >
          >

Problems with custom tags (Tomcat 4.1)

I have been trying to set up an existing web application to use a custom tag library. I have these tag-related files:
/photodb/WEB-INF/photodb.tld
/photodb/WEB-INF/classes/PhotoListTag.class
/photodb/photolist.jsp
This is how i have the photoList tag configured in photodb.tld
<tag>
<name>photoList</name>
<tag-class>PhotoListTag</tag-class>
<body-content>JSP</body-content>
<attribute>
<name>startIndex</name>
</attribute>
</tag>
When i try to view photolist.jsp, i get this error:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Compiling 1 source file
C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\photodb\photolist_jsp.java:73: cannot resolve symbol
symbol : class PhotoListTag
location: class org.apache.jsp.photolist_jsp
PhotoListTag jspxth_photodb_photoList_0 = (PhotoListTag) jspxtagPool_photodb_photoList.get(PhotoListTag.class);
^
C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\photodb\photolist_jsp.java:73: cannot resolve symbol
symbol : class PhotoListTag
location: class org.apache.jsp.photolist_jsp
PhotoListTag jspxth_photodb_photoList_0 = (PhotoListTag) jspxtagPool_photodb_photoList.get(PhotoListTag.class);
^
C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\photodb\photolist_jsp.java:73: cannot resolve symbol
symbol : class PhotoListTag
location: class org.apache.jsp.photolist_jsp
PhotoListTag jspxth_photodb_photoList_0 = (PhotoListTag) jspxtagPool_photodb_photoList.get(PhotoListTag.class);
^
3 errors
I have tried many ideas, such as packaging the tag handler class, and putting the class file in other loctions, but nothing has helped.
I know that Tomcat is recognizing PhotoListTag at some point (when it parses the TLD file, but not when compiling the JSP, I think), because if i change the <tag-class> to an invalid class, i get an "Unable to load class photoList" (which is a confusing error message btw, as photoList is not a class, but a tag name).
Does anyone know how to fix this problem? I've been going in circles for hours, and i'm thinking this problem has a simple solution.

Thank you for your quick replies. Unfortunately, they do not solve my problem. If I put PhotoListTag in the com.yourdomain package (and move it to classes/com/yourdomain), the error changes to reflect the different package (e.g. package com.yourdomain does not exist). Also, deleting the class files and restarting Tomcat did not cause any changes.
Although my knowledge of how Tomcat works is limited, it seems to me that something like this is happening:
When a request for /photodb/photolist.jsp is recieved, tomcat processes that file, processes the tld file, and checks for that any classes called using a tag--in this case <photodb:photoList>--exist. If the class is invalid, the error message "Unable to load class photoList" is given.
Otherwise, it translates the jsp into java, and attempts to compile it. This is where the problem occurs. It seems that the jasper compiler does not know where to look for the PhotoListTag class. Is there a way that this can be changed, or is could the problem be caused by something else?

Problem with custom tags

Hello..
I have created custom tags and she gives an error me.
The code is:
<%@ taglib uri="mitaglib.tld" prefix="ejemplos" %>
<HTML>
<HEAD>
<TITLE>Tag Hola Mundo</TITLE>
</HEAD>
<ejemplos:holamundo/><br>
<ejemplos:SumaTag num1="2" num2="6" />
</BODY>
</HTML>
The class:
package helperClasses;
import java.io.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class hm extends TagSupport{
public int doStartTag() throws JspException
try
pageContext.getOut().print("Hola Mundo");
catch (IOException e)
throw new JspException("Error: IOException" + e.getMessage());
return SKIP_BODY;
public int doEndTag() throws JspException
return EVAL_PAGE;
package helperClasses;
import java.io.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class SumaTag extends TagSupport{
private int num1,num2;
public void setNum1(int num1){
this.num1 = num1;
public void setNum2(int num2){
this.num2 = num2;
public int doStartTag() throws JspException {
try{
pageContext.getOut().print("Suma: " + (num1+num2));
} catch (IOException e) {
throw new JspException ("Error: IOException" +
e.getMessage());
return SKIP_BODY;
public int doEndTag() throws JspException {
return SKIP_PAGE;
The file mitaglib.tld is:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"
     "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
<taglib>
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>ejemplos</shortname>
<uri></uri>
<info>Etiquetas de ejemplo</info>
     <tag>
     <name>holamundo</name>
     <tagclass>helperClasses.hm</tagclass>
     <bodycontent>empty</bodycontent>
     <info>Saludo</info>
     </tag>
     <tag>
     <name>suma</name>
     <tagclass>helperClasses.SumaTag</tagclass>
     <bodycontent>empty</bodycontent>
     <info>Saludo</info>
     <attribute>
     <name>num1</name>
     <required>true</required>
     <rtexprvalue>false</rtexprvalue>
     </attribute>
     <attribute>
          <name>num2</name>
     <required>true</required>
     <rtexprvalue>false</rtexprvalue>
     </attribute>
     </tag>
</taglib>

[22/Dec/2003:09:43:47] failure (11848): Internal error: Unexpected error condition thrown (unknown exception,no description), stack: java.lang.NoSuchMethodError: javax.servlet.jsp.tagext.TagAttributeInfo.<init>(Ljava/lang/String;ZLjava/lang/String;Z)V
     at org.apache.jasper.compiler.TagLibraryInfoImpl.createAttribute(TagLibraryInfoImpl.java:518)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.createTagInfo(TagLibraryInfoImpl.java:426)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.java:379)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:227)
     at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEventListener.java:701)
     at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingListener.java:110)
     at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java:215)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1077)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1042)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1038)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:218)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadJSP(JspServlet.java:193)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.access$4(JspServlet.java:167)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:477)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:589)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
     at com.iplanet.server.http.servlet.NSServletRunner.invokeServletService(NSServletRunner.java:897)
     at com.iplanet.server.http.servlet.WebApplication.service(WebApplication.java:1065)
     at com.iplanet.server.http.servlet.NSServletRunner.ServiceWebApp(NSServletRunner.java:959)

Problem with custom validated data types using domain on 11g

Hi,
I ' m on a migration process from 10 to 11 and I notice that a custom domain didn't work correctly anymore
to be more specific every time that I was submiting a page a was getting an error cannot convert from myclass to oracle.jbo.domain.String
I search the forum and I saw a similar problem
Cannot convert type class java.lang.String to class oracle.jbo.domain.Clob
at which Frank says that it is a known bug and suggests a work around.
I use the workaround and it worked but some more issues came up:
1. If the validation fails I get the error that I throw at the validate method not in a popup with just my message
but in the whole window with the whole error stack, meaning that my custom validation is not handled like native ADF validation errors by
the framework (at 10.1.3.4 worked OK)
2 If i dont give a value at the attribute in the validation phase mdata variable is not null but is length is zero (at 10.1.3.4 its value was null)
public class AFM implements DomainInterface, Serializable {
public AFM(String val) {
mData = new String(val);
validate();
private String mData;
protected void validate() {
// ### Implement custom domain validation logic here. ###
mData==null // returns false
mData.length()==0 // returns true
3. Can i force validation only for new or updated values? I saw that the validation process is taking place every time a row is fetched.
This is not only a performance issue, the bigger problem is that if a fetched from the DB value fails the validation an error is return but the
user cannot change the value to correct it.
TIA
Tilemahos

since i don't get any answer I wonder if i should have use a more provocative title like
"custom domains in 11g don't work"
is it true?
Tilemahos

Problem with custom tag using TagExtraInfo

          Hi,
          I have a tag that create a Java variable using TEI. The scope of this
          variable is driving me crazy. The problem is hard to describe, so the
          email is a bit long - stay with me...
          <pre:setvar id="foo" value="test" /> create a Java variable
          named "foo", which has String value "test". I can use "foo" like this in
          the page later: <%= foo %>.
          Now, if I call setvar twice with same id:
          <pre:setvar id="foo" value="test" />
          <pre:setvar id="foo" value="another-test" />
          This is still ok. By checking the compiled Java file, the first call
          declare the var, the second call just use it without creating it again:
               //first call
               String foo=null;
               foo="test";
               //second call
               foo="another test";
          Now the problem comes when the frist call is in "if" statement (code is not
          useful, only for demostration):
          <% if (1>0) { %>
               <pre:setvar id="foo" value="test" />
          <% } %>
          <pre:setvar id="foo" value="another-test" />
          The compiled code looks like:
               if (1>0) {
                    //first call
                    String foo=null;
                    foo="test";
               //second call
               foo="another test";
          Variable foo is out of scope at the second call! (BTW, I can workaround this by
          adding another <pre:setvar id="foo" value="" /> before the "if".)
          Is it a fault in JSP specification? Or a problem when WebLogic implements TEI?
          Any idea?
          Thanks,
          -- Jin


I encountered the same problem in our environment. I did the same thing as
          James. Simply re-initialize all variables in the do end tag.
          Also, with the nested tags you use you may also need to implement cloneable
          in the inner tag if the outer tag keeps references to all the inner tag
          instances.
          For instance if the outer tag kept a vector of references to the inner tag,
          then you would need to use clone() on the inner tag before adding it to the
          vector.
          "James Lynn" <[email protected]> wrote in message
          news:3af05d29$[email protected]..
          > > But
          > > with WL 6.0, the cell tag handler reuse the same instance each time the
          > cell tag
          > > is called and the member field is not reset
          >
          > I had the same problem. As a work around, I reinitialize everything in my
          > doEndTag() method and it works.
          >
          >
          > --
          > James Lynn - Lead Software Architect
          > Oakscape - Java Powered eBusiness Solutions <http://www.oakscape.com/>
          >
          >

Problem with Customer master Attribute change run

Hello Experts
Master data load process chain for 0Customer failed in system at attribute change run step.
Because of that failed instance when ever we try to reload data get error message
"Attributes of characteristic 0CUSTOMER are locked by terminated change run 468502640"
"Lock NOT set for: Loading master data attributes"
It seems that last attribute change run step had locked master data object and lock is not yet released.
Kindly advice resoluiton to this problem.
Thanks in advance
Regards
Sudeep

Failed due to lock issue. check in SM12 you can find lock with respect to your change run 468502640.
Looks like master data step is running.
Wait till the masterdata for attributes of 0CUSTOMER completes and them repeat the attribute change run step.
To repat the attribute change run
Rsa1 --> Menu Tools -->Apply Hierarchy/change run or use transaction RSATTR
Click on monitor and Start Terminated Changes Runs(monitoring of Change runs)
Here you can check the failed Attribute change run object in red status.
after completion fo the master data and check the locks and click on execute button over there.

Problems with Custom Tags

I get a error message like this:
root cause
java.lang.NoClassDefFoundError: javax/servlet/jsp/JspContext
at java.lang.Class.getDeclaredMethods0(Native Method)
And I checked that the error looks like to be in the line
that I try to write something in my Page. This way:
this.pageContext.getOut().write("hello");
And I don�t realize what is going on, I've already checked
out in many places, web, list, etc, about this error, and up
to now I don't get any clue about what's happening.
I don't think that there's a problem in the code, because
the same code was running perfectly in another application
server.
Please someone could help me ?
Thanks in advance!
Ualter Jr.

Ok, I've alredy found the cause.
I'm using Eclipse to build my application, and the Eclipse is pointing to J2EE version 1.4 (that's in my computer) for the compilation of the Servlets and TagHandlers.
But, I'm using Tomcat 4.1.29, or JBoss 3.2.3 to test the application, and these version aren't compatible with version 1.4 of J2EE, they are compatible with version 1.3
In J2EE 1.3 there's no class called JspContext just in the J2EE 1.4
That's all confusion.
That's was my fault, sorry.

Problem with display tags (not accepting inner tags)

Hi guys ,
I am using display tags which is fine but i had a problem with anchor tag and the jsp display tag.
<display:column title="Row_Id" >
' target="-blank" onclick=""><c:out value="${row_rowNum}"/>
</display:column>
here i got the exception:
The value of attribute "href" associated with an element type "a" must not contain the '<' character.
here if jstl is not used then how to put my value in anchor tag
please help me.

Can you use EL directly:
<a href="example.jsp?id=${row.id"/"></a>

Custom tag attribute calculated by scriptlet expression

Hi,
          If I set the rtexprvalue subelement of the attribute element in my tld to
          "true", should I be able to dynamically determine the value of my custom tag
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          When I include the custom tag reference:
          <prod:getCategory id="category"
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I had the same problem in a design a couple of months ago and could not get around it so I switched the functionality into code and out of the tag lib.
I take it you are trying to do something like this?
<%
String value="hiworld";
%>
<mytaglib:saysomething value="<%=value%>"/>

Custom tag attribute question

How to assign value of expression or variable to custom tag attribute in jsp?

I had the same problem in a design a couple of months ago and could not get around it so I switched the functionality into code and out of the tag lib.
I take it you are trying to do something like this?
<%
String value="hiworld";
%>
<mytaglib:saysomething value="<%=value%>"/>

Problem with a Dynpro field (type numc)

hi everybody.
I'm developping a ModulPool application in wich i have 2 RadioButtons with 2 textbox fields.
What i pretend to do is, when the user clicks a radiobutton and strikes Intro, enable the corresponding textbox field and disable the other one.
My code runs fine, but i have a little problem. When I loop the screen table, to set the appropiate value to the 'input' property, in this case, when i try to disable it (input = '0'), I get a zero character in that field. This field has NUMC type, i'm sure this is the problem
'cos i've got no problem with the other field (type char). But i can't solve it.
Anybody's got an idea?
Thanks

What you are seeing is the normal behavior of a numeric field represented by the SAPgui. This is how all numeric fields are displayed via SAPgui. If you don't want to see the 0, then you just change the field type to CHAR and handle accordingly.
Regards,
Rich Heilman

XSLT problem with img tag in Saxon

Hi,
Iam getting a problem with <img> tag when transforming a document using Saxon transformer. In the input XSLT I have proper closing tag for <img>, but the output of the transformation is not well formed as the closing tag for <img> does not appear. I need to feed the output to a FO object to generate a print preview, but the output is not well-formed.
Kindly help to resolve the issue.
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Perhaps that is because you are generating HTML as your output? As I recall, <img> tags don't have to be closed in HTML. So try generating XML instead if you need XML.

Problem with custom paper size on dot matrix printer

Hi All,
I'm using CR2008 with updated to SP2. I have a problem with custom paper size (W=21; H=14), the CR Viewer show report with custom paper size correctly but when I print it to a dot matrix printer (Epson LQ 300+) the content was rotated to landscape. If print to a laser printer the content was printed correctly. My report was printed correctly by CR10 or previous versions I got this issue when upgraded to CR2008. I aslo tested my computer and printer with orther application like MS Word the printing have no problem with custom paper size.
Thanks for any advice for me.
Han

Looking at the Epson LQ 300+ driver, I see that the latest update is from 2002. In my experience, most matrix printer drivers are not unicode. Crystal Reports is designed to only work with unicode printer drivers. See the [How Printer Driver Options Affect a Report|https://www.sdn.sap.com/irj/boc/index?rid=/library/uuid/a09051e9-721e-2b10-11b6-f9c65c64ef29&overridelayout=true] article, page 6 for details. Also, see [this|https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_dev/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes.do] note.
Finally, see if you can print from the CR designer to this printer and if you get the correct results here.
Ludek

Sql Devloper 4.0.0.13 - problems with displaying user data types

Hi,
I have installed new version of sqldeveloper and have discovered some problems with displaying user data types. The data that is described as VARCHAR2 are displayed with ‘???’.
The problem persist in table view, script output and exported files.
My type is described as follows:
create or replace TYPE "DPTY_ADRESA" AS OBJECT
ID_DPSF_OPCINE                                         NUMBER,
ID_DPSF_MJESTA                                        NUMBER,
OPCINA                                            VARCHAR2(100),
MJESTO                                            VARCHAR2(100),
ULICA                                 VARCHAR2(200),
BROJ                                   VARCHAR2(20),
SPRAT                VARCHAR2(20),
OSTALO                             VARCHAR2(100),
CONSTRUCTOR FUNCTION dpty_adresa RETURN SELF AS RESULT
add MEMBER FUNCTION dajAdresu RETURN VARCHAR2 cascade;
when make select column from table that contains this type I get next results:
CASE 1:
SQLDeveloper Version 3.2.20.09; Build MAIN-09.87; JDK 1.6.0_43; Windows 7 64 bit
Select:
select id, adresalokacija
from dptr_saglasnosti
where id = 1;
Result:
        ID ADRESALOKACIJA
         1 COMP.DPTY_ADRESA(124,4913,'TRAIK','TURBE','BABANA','3452','0',NULL)
END CASE 1;
CASE 2:
SQLDeveloper Version 4.0.0.13; Build MAIN-13.80; JDK 1.7.0_40; Windows 7 64 bit
Select1:
select id, adresalokacija
from dptr_saglasnosti
where id = 1;
Result1:
ID ADRESALOKACIJA
         1 COMP.DPTY_ADRESA(124,4913,'???','???','???','???','???',NULL)
But if I select one element it is displayed normal.
Select2:
select id, a.adresalokacija.opcina
from dptr_saglasnosti a
where id = 1;
Result2:
ID ADRESALOKACIJA.OPCINA
         1 TRAVNIK
END CASE 2;
I have tried this scenario on three different pc with same output.
Pleas help me to get rid of the '???' in result.
Best Regards,
Omer

I tried on SQLDeveloper Version 4.0.0.13; Build MAIN-13.80; JDK 1.7.0_45; Windows 7 64 bit; NLS setting is default
all data can show,No ??? in result
Test step as following:
create or replace TYPE "DPTY_ADRESA" AS OBJECT
ID_DPSF_OPCINE                                         NUMBER,
ID_DPSF_MJESTA                                        NUMBER,
OPCINA                                            VARCHAR2(100),
MJESTO                                            VARCHAR2(100),
ULICA                                 VARCHAR2(200),
BROJ                                   VARCHAR2(20),
SPRAT                VARCHAR2(20),
OSTALO                             VARCHAR2(100),
CONSTRUCTOR FUNCTION dpty_adresa RETURN SELF AS RESULT
alter TYPE "DPTY_ADRESA" add MEMBER FUNCTION dajAdresu RETURN VARCHAR2 cascade;
CREATE TABLE dptr_saglasnosti (
adresalokacija        DPTY_ADRESA,
id    number);
INSERT INTO dptr_saglasnosti VALUES (
DPTY_ADRESA (65,225,'Vrinda Mills', '1-800-555-4412','sss','aaaa','eeeee','attta'),1 );
select id, adresalokacija from dptr_saglasnosti where id = 1;
ID ADRESALOKACIJA
1    HRCP.DPTY_ADRESA(65,225,'Vrinda Mills','1-800-555-4412','sss','aaaa','eeeee','attta')

Problem with custom tag attribute types

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