Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Problem getting Java Tag working

Posted on 2002-04-04
1
Medium Priority
?
209 Views
Last Modified: 2010-03-31
Hi,
  I have updated a java tag class and it's associated tld file. My tag worked fine before, but now does not.
Here is my code


package com.projectTest.text.tags;

import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.*;
import java.util.*;
import com.projectTest.text.*;
import com.projectTest.page.*;
import com.projectTest.*;
import com.projectTest.exceptions.*;


public class DynamicPagesTag extends TagSupport{

  private JspWriter jspWriter = null;
  private int pageKey = 0;
  private int pageTypeKey = 0;
  private String htmlString = null;

  /*
  * Setting of tag attribute
  */
  public void setPageKeyAttributes(String newPageKey, String newPageTypeKey) throws JspException {
 
    try {
      pageKey = Integer.parseInt(newPageKey);
    } catch (NumberFormatException nfe) {
      throw new JspException("Please set the pageKey as a positive integer value greater than or equal to one");
    }
    try {
      pageTypeKey = Integer.parseInt(newPageTypeKey);
    } catch (NumberFormatException nfe) {
      throw new JspException("Please set the pageTypeKey as a positive integer value greater than or equal to one");
    }  


  }


  public int doStartTag() throws JspTagException, JspException {

    getPageContentHTML();

    return EVAL_BODY_INCLUDE;
  }

  private void getPageContentHTML() throws JspException{
    TextFileReader tfr = new TextFileReader();
   
    if (pageTypeKey == Page.TypeA) {
      tfr.setFilePath(Page.TypeA + pageKey + ".txt");
    }else{
      tfr.setFilePath(Page.TypeB + pageKey + ".txt");
    }
   
    htmlString = tfr.getText();
  }

  public int doEndTag() throws JspTagException {
    try {
      pageContext.getOut().write(htmlString);

    }
    catch(IOException io) {
      throw new JspTagException("Could not write to JSP");
    }

    return EVAL_PAGE;
  }


}

My TEI Class as follows


package com.projectTest.text.tags;

import javax.servlet.jsp.tagext.*;

public class DynamicPagesTagTEI extends TagExtraInfo{
  public VariableInfo[] getVariableInfo(TagData data){
    return new VariableInfo[] {
        new VariableInfo("htmlString", "java.lang.String", true, VariableInfo.NESTED)
        };
  }
}


My custom tld file

<?xml version="1.0"?>
<taglib>
  <tlibversion>1.0</tlibversion>
  <jspversion>1.1</jspversion>
  <shortname>myTestTag</shortname>
  <info>My Tag Library</info>

<tag>
    <name>dynamicPages</name>
    <tagclass>com.projectTest.text.tags.DynamicPagesTag</tagclass>
    <bodycontent>JSP</bodycontent>
    <info>Simple example</info>
    <attribute>
      <name>pageKey</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
    </attribute>
    <attribute>
      <name>pageTypeKey</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
    </attribute>
</tag>

</taglib>


When I include the tag on a jsp page as follows:

<%@ taglib uri="/WEB-INF/customTags.tld" prefix="rbsa" %>

I get an error as follows

Root Cause --------------- : allaire.jrun.jsp.NoSuchAttributeException: The tag handler 'com.projectTest.text.tags.DynamicPagesTag' does not have a setter for the attribute 'pageKey' specified in the tld.


The only difference between this and my previous DynamicPagesTag was that there was no attribute called pageTypeKey. This iwas something I then added in. Since then the error is occuring. Do you see where I am going wrong?



0
Comment
Question by:seoirse
1 Comment
 
LVL 3

Accepted Solution

by:
saxaboo earned 800 total points
ID: 6917740
Rather than

public void setPageKeyAttributes(String,String)

use

public void setPageKey(String){...}
and
public void setPageTypeKey(String){...}

Hope this helps,

-S
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:
Suggested Courses

972 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question