Tag Handler location

Is it possible to use custom tags in a web application if the jar that contains the tag handlers of these tags is located in the ear and not in the war (WEB-INF/lib) directory.

JDeveloper 3.0 supports JSP 1.0 release, next release of JDeveloper will support JSP 1.1 which has custom tags
raghu

Similar Messages

Tag Handler Class classpath

          Hi.
          I have some problems with Tag Handler Classes in custom tags. When tag handler
          class store in package all is OK - I place it's class-file in /WEB-INF/classes/%package-path%/%class-name%.class
          and in tld-file in <tagclass> write: %package-path%.%class-name%.
          When tag handler class don't store in package I place class-file in /WEB-INF/classes/%class-name%.class
          and in tld-file in <tagclass> write: %class-name%, but it's doen't work. When
          jsp starts I recieve:
          D:\bea\wlserver\config\mydomain\applications\.wl_temp_do_not_delete\WEB-INF\_tmp_war_myserver_myserver_CustomTag\jsp_servlet\_simpleexample.java:81:
          cannot resolve symbol
          symbol : class ExampleTag
          location: class jsp_servlet._simpleexample
          ExampleTag csajspexample0 = null;
          ^
          Why? Plese, help me.
          Igor


You probably should not use unnamed packages at all.
          Language spec specifically says that "Unnamed packages are provided by the
          Java platform principally for convenience when developing small or temporary
          applications or when just beginning development."
          Igor Vinnikov <[email protected]> wrote:
          > Hi.
          > I have some problems with Tag Handler Classes in custom tags. When tag handler
          > class store in package all is OK - I place it's class-file in /WEB-INF/classes/%package-path%/%class-name%.class
          > and in tld-file in <tagclass> write: %package-path%.%class-name%.
          > When tag handler class don't store in package I place class-file in /WEB-INF/classes/%class-name%.class
          > and in tld-file in <tagclass> write: %class-name%, but it's doen't work. When
          > jsp starts I recieve:
          > D:\bea\wlserver\config\mydomain\applications\.wl_temp_do_not_delete\WEB-INF\_tmp_war_myserver_myserver_CustomTag\jsp_servlet\_simpleexample.java:81:
          > cannot resolve symbol
          > symbol : class ExampleTag
          > location: class jsp_servlet._simpleexample
          > ExampleTag csajspexample0 = null;
          > ^
          > Why? Plese, help me.
          > Igor
          Dimitri

About the Tag handler class

hi,
i created a tag handler source file.
the following exception is thrown as given below
C:\Tomcat 5.0\webapps\jsp-examples\WEB-INF\classes\Custom>javac ExampleTag.java
ExampleTag.java:3: package javax.servlet.jsp does not exist
import javax.servlet.jsp.*;
^
ExampleTag.java:4: package javax.servlet.jsp.tagext does not exist
import javax.servlet.jsp.tagext.*;
^
ExampleTag.java:7: cannot find symbol
symbol: class TagSupport
public class ExampleTag extends TagSupport
^
ExampleTag.java:13: cannot find symbol
symbol : class JspWriter
location: class Custom.ExampleTag
JspWriter out = pageContext.getOut();
^
ExampleTag.java:13: cannot find symbol
symbol : variable pageContext
location: class Custom.ExampleTag
JspWriter out = pageContext.getOut();
^
ExampleTag.java:20: cannot find symbol
symbol : variable SKIP_BODY
location: class Custom.ExampleTag
return(SKIP_BODY);
^
ExampleTag.java:20: illegal start of type
return(SKIP_BODY);
^
7 errors
can anyone help me with the problem????????

hi
i compiled my tag handler class and stored the Source and class files in the WEB-INF\classes directory.
i created a descriptor file and saved it in WEB-INF\jsp directory.
i placed my jsp file in the jsp-examples folder.
then i started the server and executed the jsp file.
that time i was encountered with the following error.
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: File "/Custom/csajsp-taglib.tld" not found
     org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
     org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:404)
     org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:154)
     org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:202)
     org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:458)
     org.apache.jasper.compiler.Parser.parseDirective(Parser.java:523)
     org.apache.jasper.compiler.Parser.parseElements(Parser.java:1577)
     org.apache.jasper.compiler.Parser.parse(Parser.java:171)
     org.apache.jasper.compiler.ParserController.doParse(ParserController.java:258)
     org.apache.jasper.compiler.ParserController.parse(ParserController.java:139)
     org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:237)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:456)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:553)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
note The full stack trace of the root cause is available in the Tomcat logs.
can you help me???????????????????

Registering a new TAG handler

I need to parse a META tag from HTML document and I cannot do it with standard tag handlers. I think I need to set up a new tag handler.
Please can anybody tell me how to do it??
I'll be graetful for any information.

If you click on the APIs link on the left, and then click on HTML.Tag in the bottom-left frame, it gives you the documentation for HTML.Tag. Now click on Uses at the top and it tells you everywhere in the standard API which uses HTML.Tag. Of these, HTMLDocument.HTMLReader.registerTag(HTML.Tag t, HTMLDocument.HTMLReader.TagAction a) looks the most promising, although it's protected so you'll have to subclass HTMLReader.

After a search of the bookmark library for a certain bookmark (and search finds it), how do you then tell what folder it is in? There should be a 'Folder' column in the title line like this, Name, Tags,Folder,Location. Thank you.

A search of the Library bookmarks should provide each bookmark's folder as well as Name, Tags, and Location.
As it is now, a search (for example) for the string 'IESI', a refuse collection company in Central Texas, actually finds IESI. But what if you cannot remember what folder you put the IESI bookmark in? Current search fails to provide folder information.

See:
*Show Parent Folder: https://addons.mozilla.org/firefox/addon/show-parent-folder/
*Go Parent Folder: https://addons.mozilla.org/firefox/addon/go-parent-folder/

The tag handler gridcolumn does not have a setter for the attribute autoExpand specified in the Tag Library Descriptor.

I recently moved from coldfusion 8 to coldfusion 9 but all the pages with cfgrid: is throwing the following error. Any suggestion would be of great help
coldfusion.jsp.JRunTagLibraryInfo$NoSuchAttributeException: The tag handler gridcolumn does not have a setter for the attribute autoExpand specified in the Tag Library Descriptor.
at coldfusion.jsp.JRunTagLibraryInfo.getPropertyType(JRunTagLibraryInfo.java:627)
at coldfusion.jsp.JRunTagLibraryInfo.buildTagInfo(JRunTagLibraryInfo.java:585)
at coldfusion.jsp.JRunTagLibraryInfo.getTag(JRunTagLibraryInfo.java:267)
at coldfusion.compiler.NeoTranslationContext.findTagName(NeoTranslationContext.java:346)
at coldfusion.compiler.NeoTranslationContext.isKnownTag(NeoTranslationContext.java:222)
at coldfusion.compiler.CFMLParserBase.isKnownTagName(CFMLParserBase.java:589)
at coldfusion.compiler.cfml40TokenManager.TokenLexicalActions(cfml40TokenManager.java:6704)
at coldfusion.compiler.cfml40TokenManager.getNextToken(cfml40TokenManager.java:6586)
at coldfusion.compiler.cfml40.getToken(cfml40.java:11879)
at coldfusion.compiler.CFMLParserBase.isTrivialAngleBracket(CFMLParserBase.java:707)
at coldfusion.compiler.cfml40.jj_3_1(cfml40.java:9392)
at coldfusion.compiler.cfml40.jj_3_2(cfml40.java:9460)
at coldfusion.compiler.cfml40.jj_3R_67(cfml40.java:9500)
at coldfusion.compiler.cfml40.jj_3_86(cfml40.java:8147)
at coldfusion.compiler.cfml40.jj_3R_92(cfml40.java:8584)
at coldfusion.compiler.cfml40.jj_3_85(cfml40.java:8641)
at coldfusion.compiler.cfml40.jj_2_85(cfml40.java:7619)
at coldfusion.compiler.cfml40.cfml(cfml40.java:4215)
at coldfusion.compiler.cfml40.cfif(cfml40.java:311)
at coldfusion.compiler.cfml40.cfml(cfml40.java:4224)
at coldfusion.compiler.cfml40.cfif(cfml40.java:311)
at coldfusion.compiler.cfml40.cfml(cfml40.java:4224)
at coldfusion.compiler.cfml40.cfelse(cfml40.java:442)
at coldfusion.compiler.cfml40.cfelseif(cfml40.java:374)
at coldfusion.compiler.cfml40.cfif(cfml40.java:314)
at coldfusion.compiler.cfml40.cfml(cfml40.java:4224)
at coldfusion.compiler.cfml40.start(cfml40.java:4664)
at coldfusion.compiler.NeoTranslator.parsePage(NeoTranslator.java:667)
at coldfusion.compiler.NeoTranslator.parsePage(NeoTranslator.java:648)
at coldfusion.compiler.NeoTranslator.parseAndTransform(NeoTranslator.java:401)
at coldfusion.compiler.NeoTranslator.translateJava(NeoTranslator.java:343)
at coldfusion.compiler.NeoTranslator.translateJava(NeoTranslator.java:144)
at coldfusion.runtime.TemplateClassLoader$TemplateCache$1.fetch(TemplateClassLoader.java:418 )
at coldfusion.util.LruCache.get(LruCache.java:180)
at coldfusion.runtime.TemplateClassLoader$TemplateCache.fetchSerial(TemplateClassLoader.java :362)
at coldfusion.util.AbstractCache.fetch(AbstractCache.java:58)
at coldfusion.util.SoftCache.get_statsOff(SoftCache.java:133)
at coldfusion.util.SoftCache.get(SoftCache.java:81)
at coldfusion.runtime.TemplateClassLoader.findClass(TemplateClassLoader.java:591)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:80)
at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:2 8)
at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:53)
at coldfusion.CfmServlet.service(CfmServlet.java:201)
at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42 )
at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
at jrun.servlet.FilterChain.service(FilterChain.java:101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

Thanks Vishu,
We are running Coldfusion 9 and attach is the sample code and error message.:
The tag handler gridcolumn does not have a setter for the attribute autoExpand specified in the Tag Library Descriptor.
The CFML compiler was processing:
A cfgrid tag beginning on line 39, column 18.
The error occurred in E:/Websites/DreData/sobrietytesting/main/Sobrietytesting/Admin/view_users.cfm: line 54
52 :                     hrefkey="member_id"
53 :                     bind="cfc:tabledisplay.browseAccessAcountRequests(,,,)"
54 :                     >
55 :

Sending value to JSP page from Tag Handler

Is there some reason why a call to setAttribute inside a Body tag handler would not succeed in making visible a variable outside the scope of the tag? I mean a situation like this:
<% String p=request.getParameter("p"); %>
<taglib:tag count="<%= p %>">
...body which handler fills in...
</taglib:tag>
<form action="thispage.jsp?p=<% newcount %>">
<input type=submit>
</form>
Assume that "count" and "newcount" are defined in the Tag Extra Info class for this handler and that TLD allows a run time evaluation of the "count" attribute.
(The idea here is to have the handler recall the same jsp file with an incremented counter.)
Some other way to do this?
Thanks,
Alan

Never mind... I see that I forgot to set the scope of the scripting variable to AT_END in the "Handler Extra Info" class.

How to submit a form in jsp from tag handler class

I have a form in jsp.I created some more links in the tag handler class.Based on the link we click form action will take place.Now how can i submit the form in tag handler class for the links i created in that class.

I have a form in jsp.I created some more links in the tag handler class.Based on the link we click form action will take place.Now how can i submit the form in tag handler class for the links i created in that class.

Finding the custom tag name from inside the tag handler

Hello,
I searched the forum, but couldnt find the answer (or in the API). In my custom tag handler, I want to know what the name of the custom tag was. Is this possible?
Thanks in advance.
Chris
ps. Without parsing the .tld file... :)

Hmm, that's unfortunate. Thanks a lot for your work. I had a feeling since it wasn't in the API that it wasn't possible. Here's why, and maybe they will add this feature later...
We are making our own tags for buttons on our app (the button will be an HTML table, with a clickable background, that looks like an image, but isnt).
The HTML designers want tags they can drag and drop to the screen in DreamWeaver, including visual feedback on what they dragged and dropped. So the tag <fast:blueButton>Continue</fast:blueButton> will show a blue button image in dreamWeaver with "Continue" as the text. There are a lot of parameters to set for each button, like height, width, border, etc. that will be configured in an XML config file for each button.
It would be nice if all the buttons we invent in the tld point to the same generic button class, and when the generic button class runs, sees which button called it, and gets its config from an XML file.
This way the designer could add more buttons with the tld and XML config, and no more java classes are needed. However, if a generic button is sent with a type param: <fast:button type="blue">Continue</fast:button> then there is no visual feedback in the tool (in the first case we could have set the fast:blueButton to be the image of a blue button) and it cant be picked from a list in the tool (the designer needs to remember which types exist). It seems not important to programmers, but for designers it is important.
Oh well, I will see if there is another way to NOT have tons of Java classes to support.
Thanks,
Chris

JSF 1.2 tag handler classes in JSF 1.1 environment

Hi,
Im developing a JSF 1.2 application with RSA 7.5.1. When I run it in the WAS 6.1 I get the following exception:
javax.servlet.ServletException:
Unable to convert string '#{onebean.onestring}' to class
javax.el.ValueExpression for attribute title:
java.lang.IllegalArgumentException:
Property Editor not registered with the PropertyEditorManager
at org.apache.jasper.runtime.PageContextImpl.handlePageException
(PageContextImpl.java:660)etc...
I think my WAS 6.1 running environment doesnt admit Tag Handler classes in JSF 1.2 style (you know: Extending UIComponentELTag, with all attributes in the tag class of type valueExpression along with setter methods...).
In case this suspect is true, is there any tricky way to run this JSF 1.2 components in a JSF 1.1 environment?
Do you have any ideas to solve this problem without downgrading my JSF tag handler classes from 1.2 to 1.1?
Thanks a lot!

Hi BalusC,
This is the full history:
I started coding the tag handler classes of my JSF components in the JSF 1.2 way.
But know, Iam being forced to run the web app that uses those JSF 1.2 components in a WAS 6.1 (servlet 2.4 & jsp 2.0, I suppose).
Not very elegant solution, I put a servlet2.5-jsp2.1-api.jar file in my WebContent\WEB-INF\lib directory, and configured a PARENT-LAST class loader policy in the server configuration.
This is my web.xml:
<?xml version="1.0"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     version="2.5">
   <servlet>
      <servlet-name>Faces Servlet</servlet-name>
      <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
      <load-on-startup>1</load-on-startup>
   </servlet>
   <servlet-mapping>
      <servlet-name>Faces Servlet</servlet-name>
      <url-pattern>*.faces</url-pattern>
   </servlet-mapping>
     <welcome-file-list>
          <welcome-file>index.html</welcome-file>
          <welcome-file>index.htm</welcome-file>
          <welcome-file>index.jsp</welcome-file>
          <welcome-file>default.html</welcome-file>
          <welcome-file>default.htm</welcome-file>
          <welcome-file>default.jsp</welcome-file>
     </welcome-file-list>
</web-app>When I launch the JSF example page, I get no logs, no messages, ONLY a blank page (¿?)
Thank you very much for your skilled help!

Java Bean access in a JSP Tag handler class

Hello Everybody,
I am trying to access my java bean(ErrorBean.java) in th doEndTag() method of the tag handler class(MyTagHandler.java) and iam getting an "CLASSCAST EXCEPTION"
I am doing it like this in the tag handler class.
MyBeans.ErrorBean errorBean = (MyBeans.ErrorBean)pageContext.getSession().getAttribute("ErrorBean");
Where MyBeans is the package in which my Error Bean is and iam placing the ErrorBean object in the session object before it comes to the jsp page where i have the jsp Custom tag:
<%@ taglib uri="/WEB-INF/taglib.tld" prefix="errors" %>
<errors:message/>
<%@ include file="footer.jsp"%>
I was of the opinion that i was casting it right...can anyone help me to find ...where iam doing it wrong...its really URGENT ..PLEASE

Friend that did not work either ...
u know what...the ErrorTagHandler class is comiling fine with out errors but in the jsp page when the custom tag is hit..this error is showing up when i see the server log.
can you throw some light on this..
thanks..
Firasath

Iphone 6 - how do I tag a location in Facebook?

Hi, I just got an iPhone 6 over the weekend and I can't figure out how to tag a location to my photo uploads in Facebook. When I try to tag a location it gives me a map of where I am currently located and will only give me the option to tag a local business. If I try to search on what I want to tag (i.e., a business outside of the map's radius or something other than a business - such as a park), it comes up with no results. Previous to this I had a Galaxy and it's Android Facebook app had a little locations icon and all I had to do is type in the name of the place and it would find it in two seconds flat. What am I doing wrong in the Apple Facebook app? Please help!

Since you're using a 3rd party app.
Suggest you contact Facebook or look at their support site.

Tool to downgrade Tag handler classes from JSF 1.2 to JSF 1.1

Is there any tool to downgrade Tag handler classes from JSF 1.2 to JSF 1.1?
thanks!

I am not sure if I understand you, but what's wrong with just replacing the JAR files?

JWSDP Custom Tags (finding tag handler class)

Hi,
ive been using the Java Web Services Development Pack
ive tried several examples of creating custom tags all seem to have different directory structures and none seem to work. Heres my setup...
rootdir -> index.jsp
rootdir -> WEB-INF -> web.xml
rootdir -> WEB-INF -> tlds -> demo.tld (the tag library descriptor)
rootdir -> WEB-INF -> classes -> demo -> tags -> Greeter.java (the tag handler class)
there are some other folders created by deploytool but they are empty.
heres demo.tld...
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>2.0</jsp-version>
<short-name>demo</short-name>
<uri>DemoTags</uri>
<tag>
<name>greeter</name>
<tag-class>demo.tags.Greeter</tag-class>
<body-content>empty</body-content>
</tag>
</taglib>
here is the tag handler class Greeter.java...
package demo.tags;
import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
public class Greeter extends SimpleTagSupport {
public void doTag() throws JspException {
PageContext pageContext = (PageContext) getJspContext();
JspWriter out = pageContext.getOut();
try {
out.println("Hello World");
} catch (Exception e) {
// Ignore.
and heres the code in index.jsp...
<%@taglib prefix="t" uri="DemoTags" %>
<t:greeter />
Id love to know if these directory structures are fixed and where they are specified - its confusing the way so many examples show differences.
this is the exception i get when trying to run index.jsp through the admin page (localhost:4848)
org.apache.jasper.JasperException: /index.jsp(11,0) Unable to load tag handler class "demo.tags.Greeter" for tag "t:greeter"
----

Sincere Apologies - It might be a good idea to compile my java files so i actually have classes in my classes directory !!
i think a build.xml file is needed for ant to compile everything that is needed now.
and the beat goes on !

Accessing JSP Variables in Custom Tag Handler.

Hi,
I am creating a custom tag which builds a list view. I have certain String array in my JSP and I need to pass the same into my Tag Handler class. I tried following ways :
1. In doStartTag() implementation I used
   public int doStartTag() {
         String[] myArray = (String[])pageContext.getAttribute("mystringarray", PageContext.PAGE_SCOPE;
   }This is not recognizing the String array variable defined in my JSP.
2. I used separate attribute which is passed from the JSP to the custom tag as parameter having "rtexprvalue" as true. But I cann't pass a Sting array into my tag handler class. I can pass only String.
How can I access variables which are defined in the JSP using declaration block. i.e.
<%!
String[] myArray = new String[100];
%>
Thanks for the time.

You should be able to pass any type you like as an attribute to the tag.
You just have to define its type as String[] in your tld:
<attribute>
<name>stringArray</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
<type>java.lang.String[]</type>
</attribute>
Alternatively, If you declare your array like:
<%!
String[] myArray = new String[100];
%>You can do this:
pageContext.setAttribute("mystringarray", myArray);
which will put it into the page context for you to pick up in your custom tag.
Hope this helps,
evnafets

Tag Handler location

Similar Messages

Maybe you are looking for