Jsp:getProperty in tag attributes

Hii....
I have a custom tag that displays some information based on an attribute of the tag. I want to set information from a bean to the attribute using the jsp:getProperty tag...
I want to do something like.......
<mytagprefix:MyTag attribute1='<jsp:getProperty id="myID" property="name"/>' />
If I do it right now I am getting the string <jsp:getProperty id="myID" property="name"/> inside the my TAG.
any help will be appreciated.
sanjay.

I'm a bit rusty on custom tags, so maybe this isn't the best solution, but until you find a better one you can try '<%= myID.getName() %>' as the attribute.

Similar Messages

JSP in custom tag attributes...

Sirs,
          A very nice feature from a development perspective, would be the ability
          to use JSP code within custom tags. Say I have a page on which I wish
          to give all the information on a widget. Say further that I have
          implemented a tag that writes out all the info of a widget as HTML
          table. I would like to write something like this:
          <mytaglib:widgetTag widgetID="<%=request.getParameter("widget_id")%>"
          />
          As far as I know, in the current implementation of custom taglibs this
          does not seem to be possible. Instead you end up writing something like
          this:
          <mytaglib:widgetTag>
          <mytaglib:getWidget><%=request.getParameter("widget_id")%>"</mytaglib:getWidget>
          <mytaglib:displayWidget />
          </mytaglib:widgetTag>
          Which is much more like a scripting language than a heirarchical XML .
          Now, I could always just use the request object within the tag helper
          classes, but this gives up flexibility and can introduce security
          issues, and it also makes the tags much more difficult to work with...
          In short, we should push for JSP evaluation of tag attributes. Weblogic
          could leap ahead of other app servers in this area (making up for the
          custom tag performance issues, to be solve in sp6) and Sun would, once
          again, follow Weblogic's lead and rewrite the standard to include this
          functionality.
          Regards,
          Carson Gross


Carson,
          Perhaps the problem is that you are treating custom tags like one would
          construct an imperative language. I have never had to put Java or use beans
          or %= or even parameters to tags into a JSP because of custom tags.
          The real problem is writing/packaging/maintaining all those tags; sure could
          use a tool that did just that ;-)
          Peace,
          Cameron Purdy
          [email protected]
          http://www.tangosol.com
          WebLogic Consulting Available
          "Carson Gross" <[email protected]> wrote in message
          news:[email protected]...
          > Sirs,
          >
          > A very nice feature from a development perspective, would be the ability
          > to use JSP code within custom tags. Say I have a page on which I wish
          > to give all the information on a widget. Say further that I have
          > implemented a tag that writes out all the info of a widget as HTML
          > table. I would like to write something like this:
          >
          > <mytaglib:widgetTag widgetID="<%=request.getParameter("widget_id")%>"
          > />
          >
          > As far as I know, in the current implementation of custom taglibs this
          > does not seem to be possible. Instead you end up writing something like
          > this:
          >
          > <mytaglib:widgetTag>
          >
          >
          <mytaglib:getWidget><%=request.getParameter("widget_id")%>"</mytaglib:getWid
          get>
          >
          > <mytaglib:displayWidget />
          > </mytaglib:widgetTag>
          >
          > Which is much more like a scripting language than a heirarchical XML .
          > Now, I could always just use the request object within the tag helper
          > classes, but this gives up flexibility and can introduce security
          > issues, and it also makes the tags much more difficult to work with...
          >
          > In short, we should push for JSP evaluation of tag attributes. Weblogic
          > could leap ahead of other app servers in this area (making up for the
          > custom tag performance issues, to be solve in sp6) and Sun would, once
          > again, follow Weblogic's lead and rewrite the standard to include this
          > functionality.
          >
          > Regards,
          > Carson Gross
          >

How come property attribute of jsp:getProperty knows which method to call

Hello friends,
I could not understand How come property attribute of <jsp:getProperty knows which method to call
<jsp:useBean id="test" class="BeanTest.testing" scope="page" />
<jsp:getProperty name="test" property="name" />
there is no method "name" in testing.class file
if u see the existing examples "date" given in TOMCAT , it is using many <jsp:getProperty tag, but the property name is not equal to the method method name in the Bean file
thanks,

First do you know what a
bean property sheet is?
If not say so.
Second, to your question
The Java Runtime Environment (JRE) uses introspection to identify the appropriate get() or set() methods of that bean. What is introspection?
Introspection is a process that allows the class to expose its accessable variables and methods and allows other classes to see what they can do with that class when requested. Eg:
public class MyBean{
private String someValue = null;
public MyBean(){
someValue = "Some String Value";
//Introspection will reveal this method
public String getSomeValue(){
return someValue;
} and
<jsp:getProperty name="...." property="someValue" />
will call the getSomeValue() method

JSP ${} expressions in JSF tag attributes

Does anyone know why the expert group decided not to allow ${} style expressions within JSF tag attributes? I understand that a different syntax is needed to implement the 'late binding' #{} expressions used to link input controls to form beans, but not why the JSF tags actually prevent the use of immediately evaluated ${} expressions for accessing variables in the page scope in JSP 2.0.
I know there has been a lot of discussion about this and other threads mention a security loophole that would be opened up by allowing expressions like #{blah.${someProperty}}, but I'm not sure why this sort of thing would cause a problem. Is there any way to enable this behaviour, such as editing the JSF tag library descriptors to allow runtime expressions (horrible though that sounds)? Or perhaps another JSF implementation that supports both immediately evaluated and late-binding expressions? It seems a rather unnecessary restriction that is going to cause much confusion and mistyping for all...
Thanks in advance,
Keith.

Thanks Adam, I see the problem now. It's a fairly obscure loophole but serious nonetheless. Of course, this problem could also be avoided by not using request parameters within JSF tags as it doesn't affect the majority of legitimate uses for expressions.
I have to disagree with you about mixing ${} and #{} expressions though. The majority of developers will be used to writing ${} expressions in JSTL and JSP text and so will expect them to do work the same in JSF tags. Judging by the number of posts in this forum about being unable to use page scope variables in JSF tags this issue is already confusing a lot of people.
As a rule of thumb, "use ${} for expressions that are output to the page and #{} for binding controls to backing beans and invoking methods" (which perform clearly distinct functions) is a lot simpler and easier to learn IMHO than the current one, which is "use ${} for expressions that are output to the page except within a JSF tag, where you use #{} for the same thing and also to update form values and invoke action methods"! (OK, I'm exaggerating a little for effect, but you get the point... :-)
I agree that mixing both types of expression in the same attribute might be a little confusing, but this is an unlikely edge case that should probably be prevented in value binding or action attributes anyway. It's more of an issue for label values where mistyping one for the other is already very common and, although not especially difficult to debug, is just another pitfall awaiting the unwary JSP developer. I'm not sure that JSP expressions would be much more difficult to debug anyway as the value and method bindings will simply not work, which is pretty obvious as soon as you try and test the thing.
Is this something that the EG would be prepared to reconsider for the next release of JSF, or perhaps getting the security loophole addressed in the next JSP spec? In the meantime, is there any reason that developers shouldn't enable runtime expressions in the TLD file provided that they're willing to live with the consequences?
(Sorry to harp on about it, but I've already had several complaints about this after recommending JavaServer Faces for a major development project at ingenta.com.)
Many thanks,
Keith.

JSPs using Custom Tag with Boolean attribute cannot compile

Hi,
In Oracle9iAS(9.0.3), a jsp using a tag extension, which has a Boolean attribute, caused the following compile error, although the jsp is valid in other web containers.
ERROR:
/opt/oracle/j2ee/home/application-deployments/simple/simple/persistence/_pages/_test.java:56: Method toBoolean(java.lang.Boolean) not found in class _test.
__jsp_taghandler_1.setExists( OracleJspRuntime.toBooleanObject( toBoolean( b)));
JSP:
<%@ page language="java" %>
<%@ page errorPage="error.jsp" %>
<%@ taglib prefix="jnpr" uri="/WEB-INF/testtag.tld" %>
<%
Boolean b = Boolean.valueOf("true");
%>
<jnpr:TestTag exists="<%= b%>"/>
The boolean value is <%= b %>
Tag Handler:
package defaultpak;
import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
public class TestTag extends TagSupport{
private Boolean exists = null;
private java.lang.Boolean getExists() {
return exists;
public void setExists(java.lang.Boolean newExists) {
exists = newExists;
public int doStartTag() throws JspException {
return super.doStartTag();
Is this a known problem? Is there a way to get around this?
Thanks in advance.
Fred

This is a known issue with 903, fixed in coming 904.
In 903 the workaround is to use primitive type "boolean" instead of Object type "java.lang.Boolean" in user's getter and setter code for the taglib.
-Prasad

Populating combobox in jsp page from javabean using jsp:getProperty tag

hi,
i am new to jsp, so i don;t know how to populate a combobox in jsp page with productid attribute from a javabean called Bid . i want to have a code to automatically populating combobox using the attribute value from javabean.
please reply me.
<jsp:useBean id="bidpageid" class="RFPSOFTWARE.Bid" scope="session" />
<jsp:setProperty name="bidpageid" property="*"/>
<table width="50%" align="center" border="0">
   <tr>
    <td width="30%" align="left"><h4><b><label>Date (dd/mm/yyyy) </label></b></h4> </td>
    <td><input type="text" name="date" size="11" maxlength="10" readonly="readonly" value="<jsp:getProperty name="bidpageid" property="date"/>" > </td>
</tr>
<tr> <td > </td> </tr>
<tr>
    <td width="30%" align="left"><h4><b><label>ProductId </label></b></h4> </td>
    <td><select name="productid" tabindex="1" size="1" >
      <option value="<jsp:getProperty name=bidpageid" />Sachin</option>
      <option value="Hello">Vishal</option>
    </select></td>
</tr> and the javabean for Bid is as follow :
import java.util.Date;
import RFPSOFTWARE.Product;
public class Bid{
private Product product;
private Integer bid_id;
private String description;
private Date date= new Date();
public Integer getBid_id() {
return bid_id;
public Date getDate() {
return date;
public String getDescription() {
return description;
public Product getProduct() {
return product;
public void setBid_id(Integer bid_id) {
this.bid_id = bid_id;
public void setDate(Date date) {
this.date = date;
public void setDescription(String description) {
this.description = description;
public void setProduct(Product product) {
this.product = product;
}

No Sir,
I think I did not explained clearly.what I try to say is I dont want to use JSTL.I am using only Scriptlets only.I can able to receive the values from the database to the resultset.But I could not populate it in Combobox.
My code is :
<tr>
<td width="22%"><font color="#000000"><strong>Assign To Engineer</strong></font></td>
<td width="78%">
     <select NAME="Name" size="1">
<option><%=Username%></option>
</select> </td>
</tr>
in HTML
and in Scriptlets:
ps1 = con.prepareStatement
          ("SELECT Username FROM Users");
          rs2=ps1.executeQuery();
          System.out.println("SECOND Succesfully Executed");
          while(rs2.next())
               System.out.println("Coming inside rs2.next loop to process");
               Username=rs2.getString("Username");
               System.out.println("Success");
               System.out.println("The value retrieved from UsersTable Username is:"+Username);
In the server(Jboss console) I can able to display the username but I could not populate it in the Combobox .
Can you now suggest some changes in my code,Please..
Thanks a lot
With kind Regds
Satheesh

jsp:getProperty.... in a taglib-tag ???

Hi !
I have taglib where I have defined a lots of classes and one of them I have a attribute who should be dynamic. I have tryed this:
<easyTagz:submit iteration='<jsp:getProperty name='submission' property='maxCount'/>' />
but it dosen`t seem to work....
Any suggestion :-)

Dosen`t seem to work, have tryed and gets this error message:
org.apache.jasper.JasperException: Unable to compile class for JSP
at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:567)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:177)
Any suggestion ???

Help with JSP:GetProperty Tag

Howdy all,
I have a
<jsp:getProperty name='input' property='code01'/>
tag and would like to be able to put a variable in the property field so that I can increment from code01 to code02 to code 03 by concatenating strings
Is this possible?

Thanks for your input on the forum, but I tried with no sucess to put it into action:
<% String colname="code02"; %>
<jsp:getProperty name='Input' property='<%=colname%>' />
Produced this:
Internal Servlet Error:
org.apache.jasper.JasperException: Cannot find any information on property '' in a bean of type 'com.infomed.InputBean'
     at org.apache.jasper.runtime.JspRuntimeLibrary.getReadMethod(JspRuntimeLibrary.java:616)
     at org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerator.java:101)
     at org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(JspParseEventListener.java:771)
     at org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventListener.java:220)
     at org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseEventListener.java:175)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:210)
     at org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:612)
     at org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146)
     at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:542)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:258)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:268)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:429)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:500)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
     at org.apache.tomcat.core.Handler.service(Handler.java:287)
     at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
     at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)
     at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
     at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:213)
     at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
     at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)
     at java.lang.Thread.run(Thread.java:484)
Any Help you can give would be greatly appreciated, what I need to do is cycle through code01, code02....code15
and use the string to do it, but use a counter integer to create the string, ie..'code0' + i and then use the sting to access
on of the member properties in the been...(Code01, Code02) ertc.

Formatting fonts within jsp:getProperty tag????

I'd diplaying a piece of information on one of my pages using the jsp:getProperty tag.... there seems to be no way I can effect the display of the property with the font/color that I want - when I look at the resulting HTML code, I see that this tag has created a new HTML table specifying the class "inFieldSet" (a CSS class I presume, and which I also presume if overriding my desired font/color settings). Is there a way to make the page display the property using the font/color that I want without writing a custom tag?
Scott

All the JSP getProperty tag does, is get a string returning the value of a property. It would not apply any formatting to your page.
I would take a look at the "getter" for this property to see what value it is returning.
Most probably it is returning a chunk of preformatted html.

Regarding jsp:getProperty

hi
i have a bean. I am setting the values of the bean and setting that bean as an attribute in the session.
In another jsp i am able to access the bean using
<jsp:getProperty name=".." property="..">
Here the name is the same as the attribute name.
But here i am not using <jsp:useBean /> tag.
I have read some where that <jsp:getProperty> or <jsp:setProperty> should be used with the <jsp:useBean> tag.
Please correct me where i am wrong?

I too read the same.
But i done an example on my local machine and i am able to access the <jsp:getProperty> without <jsp:useBean>
Consider Testbean.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<HEAD>
<LINK href="theme/Master.css" rel="stylesheet" type="text/css">
<TITLE>TestBean.jsp</TITLE>
</HEAD>
<BODY>
<%
InfoBean infoBean = new InfoBean();
infoBean.setFullname("Macro");
infoBean.setAge("23");
infoBean.setOccupation("employee");
infoBean.setSex("F");
infoBean.setQualification("B-Tech");
session.setAttribute("InfoBeanObj",infoBean);
%>
<jsp:forward page = "TestBeanForward.jsp"/>
</BODY>
</HTML>
The TestBeanForward.jsp is
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<HEAD>
<LINK href="theme/Master.css" rel="stylesheet" type="text/css">
<TITLE>TestBeanForward.jsp</TITLE>
</HEAD>
<BODY>
<jsp:getProperty name="InfoBeanObj" property="fullname"/>
<jsp:getProperty name="InfoBeanObj" property="age"/>
<jsp:getProperty name="InfoBeanObj" property="occupation"/>
<jsp:getProperty name="InfoBeanObj" property="sex"/>
<jsp:getProperty name="InfoBeanObj" property="qualification"/>
</BODY>
</HTML>
I ran TestBean.jsp on server and i am able to print all the values onthe browser

JSP : Tiles Error �tag.getAsString� : component context is not defined

JSP : Tiles Error �tag.getAsString� : component context is not defined
I�m working with Struts 1.1 and Tiles, under Tomcat 5.0.16
My application works fine using Struts 1.1 alone, however, when attempting to run the application in a �Tiles� environment, I get an error:
�
javax.servlet.jsp.JspException: Error - tag.getAsString : component context is not defined. Check tag syntax
�
I have �defined� this in my �tiles-defs.xml� file, and as far as I can tell, everything else is configured properly (I have looked over the included Struts document examples, and others on the web, and I seem to have everything configured identically).
What am I missing???
I have created a series of �mostly� empty JSP files, for simplicity sake.
JSP FILES:
-     header.jsp
-     footer.jsp
-     menu.jsp
-     rootLayout.jsp
-     user.jsp
-     show_user.jsp
-     error.jsp
-     defaultContentPage.jsp
All JSP files contain:
<%@ taglib uri="/WEB-INF/lib/struts-tiles.tld" prefix="tiles" %>
and
�
<title>
<tiles:getAsString name="title"/>
</title>
�
My �tiles-defs.xml�: =================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/tiles-config_1_1.dtd">
<tiles-definitions>

<definition name=".root.layout" path="/jsp/rootLayout.jsp" >
<put name="title" value="Default title"/>
<put name="header" value="/jsp/header.jsp"/>
<put name="menu" value="/jsp/menu.jsp"/>
<put name="content" value="/jsp/defaultContentPage.jsp"/>
<put name="footer" value="/jsp/footer.jsp"/>
</definition>


<definition name=".view.user" extends=".root.layout">
<put name="title" value="Welcome to the User Form."/>
<put name="content" value="/jsp/user.jsp"/>
</definition >

<definition name=".view.save" extends=".root.layout">
<put name="title" value="Welcome to the Show User Form."/>
<put name="content" value="/jsp/show_user.jsp"/>
</definition >

<definition name=".view.error" extends=".root.layout">
<put name="title" value="Error Message."/>
<put name="content" value="/jsp/error.jsp"/>
</definition >
</tiles-definitions>
My �struts-config.xml�: ==============================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>

<form-beans>
<form-bean name="userForm" type="biz.seamrog.strutstest.model.state.UserForm"/>
</form-beans>

<action-mappings>


<action path="/user"
forward=".view.user">
</action>


<action path="/save"
type="biz.seamrog.strutstest.model.logic.SaveAction"
name="userForm" scope="request"
input="/jsp/user.jsp">
<forward name="success" path=".view.show_user"/>
<forward name="failure" path=".view.error"/>
</action>
</action-mappings>

<global-forwards>

<forward name="user" path=".view.user"/>
<forward name="show_user" path=".view.show_user"/>
<forward name="error" path=".view.error"/>
<forward name="cssBase" path="/stylesheets/common.css"/>
</global-forwards>


<plug-in className="org.apache.struts.tiles.TilesPlugin" >
<set-property property="definitions-config" value="/WEB-INF/tiles-defs.xml"/>
<set-property property="definitions-parser-validate" value="true" />
<set-property property="moduleAware" value="true" />
</plug-in>
</struts-config>
My �web.xml�: =====================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC '-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN' 'http://java.sun.com/dtd/web-app_2_3.dtd'>
<web-app>
<servlet>


<servlet-name>MyController</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>

<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>

<init-param>
<param-name>definitions-config</param-name>
<param-value>/WEB-INF/tiles-defs.xml</param-value>
</init-param>

<init-param>
<param-name>application</param-name>
<param-value>ApplicationResource</param-value>
</init-param>

<load-on-startup>5</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>MyController</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>/jsp/user.jsp</welcome-file>
</welcome-file-list>

<taglib>
<taglib-uri>/WEB-INF/lib/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/lib/struts-bean.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/lib/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/lib/struts-html.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/lib/struts-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/lib/struts-logic.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/lib/struts-tiles.tld</taglib-uri>
<taglib-location>/WEB-INF/lib/struts-tiles.tld</taglib-location>
</taglib>
</web-app>
My �rootLayout.jsp�: ================================================
<%@page contentType="text/html"%>
<%@ taglib uri="/WEB-INF/lib/struts-tiles.tld" prefix="tiles" %>
<html>
<header>
<title>
<tiles:getAsString name="title" />
</title>
<body>
<tiles:get name="header"/>
<tiles:get name="menu"/> <tiles:get name="content"/>
<tiles:get name="footer"/>
</body>
</html>

I found an entry in the Mail Archive for Struts. I got it working. My working code is below. You need to in the base JSP import the header and put the 'title' out to it.
tiles:def file:
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/tiles-config_1_1.dtd">
<tiles-definitions>
<definition name=".petstore.Base" path="/common/petstorecommon.jsp">
<put name="title" value ="${title}"/>
<put name="header" value="/common/header.jsp"/>
<put name="message" value="/common/message.jsp"/>
<put name="content" value="${content}"/>
<put name="navbar" value="/common/navbar.jsp"/>
</definition>
<definition name="petstore.Login" extends=".petstore.Base" >
<put name="title" value="Login Page" />
<put name="content" value="/Logon.jsp"/>
<put name="test1" value="test1value"/>
</definition>
base tile def:
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles"%>
<%@ page contentType="text/html;charset=windows-1252"%>
<html:html>
<head>
<html:base/>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>pet store common (jsp)</title>
</head>
<body>
<tiles:insert attribute="header">
<%-- both of these attributes are accessible from header.jsp It works!!! --%>
<tiles:put name="title" beanName="title" beanScope="tile" />
<tiles:put name="test1" beanName="test1" beanScope="tile" />
</tiles:insert>
<%-- <tiles:get name="header" /> --%>
<tiles:get name="message" />
<tiles:get name="content" />
<tiles:get name="navbar" />
</body>
</html:html>
Getting access to the title value in the header.jsp file:
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic"%>
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles"%>
<html>
<head>
<tiles:getAsString name="title" />
<tiles:getAsString name="test1" />
</head>
<body>
</body>
</html>

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
          attribute using a scriptlet expression?
          When I include the custom tag reference:
          <prod:getCategory id="category"
          categoryID="<%=request.getParameter("catID")%>" scope="page"/>
          it actually gets written to the html as:
          <prod:getCategory id="category" categoryID="2133" scope="page"/>
          and is not recognized as a jsp tag.
          I am using weblogic 6.0 sp1.
          Thanks in advance!
          daniel


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%>"/>

Using TAG Attributes within JSF Tags

I'm using some .tag files for templating purposes. I'm using two tag attributes via <@% attribute %> directive. How can i access this attribute to do something like follows.
<%@ tag display-name="Area de Trabajo" language="java" %>
<%@ taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@ taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<%@ taglib prefix="t" uri="http://myfaces.apache.org/tomahawk"%>
<%@ attribute name="title" required="true"%>
<%@ attribute name="location" %>
<t:div styleClass="zonaArea#{(not empty location) ? location : 'Global'}">
<h:panelGrid columns="1">
<h:outputText value="#{title}" />
</h:panelGrid>
<jsp:doBody />
</t:div>

Hola Alberto.
Any luck? Did you worked that around?
I'm just trying to do the same thing...
Tried to do something like:
<%@attribute name="enabled" type="java.lang.String" %>
<h:outputText value="test: #{requestScope['enabled']}" style="font-weight: bold;" /> to no avail...
Let me know, please!
Hi,
Manrico

Updating tag attributes in design time

I have a design time renderer for my custom component... As the component renders itself in design time, I set some of the component properties from within the renderer... The property sheet correctly shows those values... However, the associated JSP tag in the source view does not show those attributes... The JSP tag attributes dictate the runtime behavior and since they are not set properly, my component misbehaves.
How do I make sure that the tag attributes sync up with the property sheet values?
Also, what is the motivation behind the property sheet displaying the component values and not the JSP tag values? Having it the way it is right now opens itself up to a bunch of out-of-sync problems like the one I encountered.
Thanks,
Keyur

Ok - here are a couple of scenarios:
1. I have a component, say chart component associated with a connection component like this:
<my:connection id="connection1" />
<my:chart connectionId="connection1" />The user first drags and drops the connection component. The ID connection1 is automatically associated to it. Next he drops the chart component. Now, I would like to automatically populate the connectionId attribute without the user having to type it in manually. I am able to do that (in design time) in the renderer of the chart component - I programmatically look for a connection component on the page and set the connectionId attribute of the control. And when I do that it correctly shows the connectionId attribute populated in the property sheet but the corresponding tag attribute is not.
Sure enough, at runtime, it is the tag attribute values that count and since those are not updated by the IDE, it does not work as expected.
2. Creator updates the style attribute when I move or resize the component. Now, I also have position attributes left and top defined on my component and I use these attributes at runtime to position my component. So, in design time I extract the left and top values from the style attribute and set them on the component. But again, the tag attributes are not populated and so the component is not positioned properly.
#1 is to convenience the user so that he doesn't have to manually enter values for attributes which can be automatically populated at design time.
In fact for #1, I would ideally like to show the user a drop down list of all the connections available to him in the property sheet and select the first one by default. Is this possible?
#2 is for backward compatibility reasons - We already have runtime renderers in place which use left and top attributes explicitly to render the components at runtime. And this is not restricted to left and top only but other client attributes as well - such as borders, backgrounds etc. which we expose as separate attributes.

Jsp:getProperty in tag attributes

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