Custom Tag with boolean Attribute problems

Hi,
I've created a simple custom tag that is expecting a boolean attribute called "disabled". In my Tag derived class I've created a setDisabled(boolean b) method and set the following in the tag descriptor:
<attribute>
     <name>disabled</name>
     <required>false</required>
     <rtexprvalue>true</rtexprvalue>
</attribute>I'm using a JSTL expression "${someExpression}" which, when I do a c:out on the value, returns true.
I call the tag like this:
<mytag disabled="${someExpression}"/>However, in my custom tag class the value is passed as false. I can get true passed in if I hard code it, but that isn't going to work.
I've tried a number of different combinations and even read through this forum for the last 2 hours and cannot seem to figure it out.
What am I doing wrong?
Thanks,
John

TLD File, per your previous recommendation:
<attribute>
     <name>disabled</name>
     <required>false</required>
     <rtexprvalue>true</rtexprvalue>
     <type>boolean</type>
</attribute>My Tag class (snippet):
public class ButtonTag extends TagSupport
  private boolean disabled;
  public ButtonTag() {}
  public boolean isDisabled()
     return disabled;
  public void setDisabled(boolean b)
    disabled = b;
}A sample of the jsp file invoking it:
<c:set var="result" value="${computedValue}"/>
<ltm:button disabled="${result}"/>Regardless of the value of result, ("true" or "false") it always passes false to the setDisabled method of the button tag class.

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    out.write("%>\r\n<%\r\n\tfor(int i=0;i<nLen;i++) \r\n\t{\r\n\t\tString cd = arrOskCodeNameProrty[i].getCode();\r\n\t\tString nm = arrOskCodeNameProrty[i].getName();\r\n\t\tString value = cd + SKConstants.SEPARATOR + nm;\r\n\r\n\t\tstrSelected = \"\";\r\n\t\tif(cd.equals(prorty)) strSelected = \"selected\";\r\n%>\r\n\t\t\t\t<option <%= strSelected %> value=\"<%= value %>\"><%= nm %></option>\r\n<%\r\n\t}//for loop\r\n%>\r\n\t\t\t</select>\r\n\t\r\n\t</td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ������������E/td>\r\n\t<td><input type=\"text\" size=4 maxlength=4 name=\"rpt_dt_yyyy\" value=\"<%= rpt_dt_yyyy %>\">��� <input type=\"text\" size=2 maxlength=2 name=\"rpt_dt_mm\" value=\"<%= rpt_dt_mm %>\">���E<input type=\"text\" size=2 name=\"rpt_dt_dd\" maxlength=2 value=\"<%= rpt_dt_dd %>\">��� <input type=\"text\" maxlength=2 size=2 name=\"rpt_dt_hh\" value=\"<%= rpt_dt_hh %>\">���E<input type=\"text\" size=2 maxlength=2 name=\"rpt_dt_mi\" value=\"<%= rpt_dt_mi %>\">���E<span class=\"fsyl_2\">�E����������������E/span></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ��� ���E���E</td>\r\n\t<td><input type=\"text\" size=20 name=\"rpt_user\" value=\"<%= Util.forHidden(rpt_user) %>\"></td>\r\n");
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    out.write("\t</tr>\r\n\t<tr>\r\n\t<td valign=top class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ���������E��</td>\r\n\t<td><textarea rows=5 cols=72 name=\"rpt_effct_lmt\"><%= UzString.htmlEncodeForHidden(rpt_effct_lmt) %></textarea> <span class=\"fsyl_2\">�E�E00���E�����E/span></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td valign=top class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ���E��� ���</td>\r\n\t<td><textarea rows=5 cols=72 name=\"reappr_cnd\"><%= UzString.htmlEncodeForHidden(reappr_cnd)%></textarea> <span class=\"fsyl_2\">�E�E00���E�����E/span></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td nowrap class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ������������������E/td>\r\n\t<td><input type=\"text\" size=4 name=\"rply_prf_dt_yyyy\" maxlength=4 value=\"<%= rply_prf_dt_yyyy %>\">��� <input type=\"text\" size=2 name=\"rply_prf_dt_mm\" maxlength=2 value=\"<%= rply_prf_dt_mm %>\">���E<input type=\"text\" maxlength=2 size=2 name=\"rply_prf_dt_dd\" value=\"<%= rply_prf_dt_dd %>\">��� <input type=\"text\" maxlength=2 size=2 name=\"rply_prf_dt_hh\" value=\"<%= rply_prf_dt_hh %>\">���E<input type=\"text\" maxlength=2 size=2 name=\"rply_prf_dt_mi\" value=\"<%= rply_prf_dt_mi %>\">���E<span class=\"fsyl_2\">�E����������������E/span></td>\r\n");
    out.write("\t</tr>\r\n\t<tr>\r\n\t<td>���</td>\r\n\t<td align=right><input type=\"button\" value=\"���������������\" onClick=\"openOptn()\"></td>\r\n\t</tr>\r\n<!---- ��������������������������������������� ----->\r\n\t<tr id=\"com\" style=\"display:none\">\r\n\t<td colspan=2>\r\n\t\t<table border=0 cellspacing=0 cellpadding=5>\r\n\t\t<tr>\r\n\t\t<td class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ���������������E/td>\r\n\t\t<td>\r\n\t\t\t<select name=\"crrspndUserCombo\">\r\n<%\r\n\tstrSelected = \"\";\r\n\tnLen = 0;\r\n\tif(arrOfUserName != null) nLen = arrOfUserName.length;\r\n\r\n\tif(crrspnd_user.equals(\"\")) strSelected = \"selected\";\r\n%>\r\n\t\t\t\t<option <%= strSelected %> value=\"<%= SKConstants.NOTSPECIFIED %>\">���������������������E/option>\r\n<%\r\n\tfor(int i=0;i<nLen;i++){\r\n\t\tString[] arrTemp = UzUtil.extractTokens(arrOfUserName[i], SKConstants.SEPARATOR);\r\n\t\t\r\n\t\tstrSelected = \"\";\r\n\t\tif(arrTemp[0].equals(crrspnd_user)) strSelected = \"selected\";\r\n%>\r\n\t\t\t\t<option <%= strSelected %> value=\"<%= arrOfUserName[i] %>\"><%= arrTemp[1] %></option>\r\n<%\r\n\t}//for loop\r\n%>\r\n\t\t\t</select>\r\n\t\t\r\n\t\t</td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t<td class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ������������������E/td>\r\n");
    out.write("\t\t<td>\r\n\t\t\t<select name=\"fndngDivCombo\">\r\n<%\r\n\tstrSelected = \"\";\r\n\tnLen = 0;\r\n\tif(arrOskCodeNameFndngDiv != null) nLen = arrOskCodeNameFndngDiv.length;\r\n\r\n\tif(fndng_div.equals(\"\")) strSelected = \"selected\";\r\n%>\r\n\t\t\t\t<option <%= strSelected %> value=\"<%= SKConstants.NOTSPECIFIED %>\">���������������������E/option>\r\n<%\r\n\tfor(int i=0;i<nLen;i++) \r\n\t{\r\n\t\tString cd = arrOskCodeNameFndngDiv[i].getCode();\r\n\t\tString nm = arrOskCodeNameFndngDiv[i].getName();\r\n\t\tString value = cd + SKConstants.SEPARATOR + nm;\r\n\r\n\t\tstrSelected = \"\";\r\n\t\tif(cd.equals(fndng_div)) strSelected = \"selected\";\r\n%>\r\n\t\t\t\t<option <%= strSelected %> value=\"<%= value %>\"><%= nm %></option>\r\n<%\r\n\t}//for loop\r\n%>\r\n\t\t\t</select>\r\n\t\t\r\n\t\t</td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t<td class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ������������E��������</td>\r\n\t\t<td><input type=\"text\" maxlength=4 size=4 name=\"crrspnd_fin_pln_dt_yyyy\" value=\"<%= crrspnd_fin_pln_dt_yyyy %>\">��� <input type=\"text\" maxlength=2 size=2 name=\"crrspnd_fin_pln_dt_mm\" value=\"<%= crrspnd_fin_pln_dt_mm %>\">���E<input maxlength=2 type=\"text\" size=2 name=\"crrspnd_fin_pln_dt_dd\" value=\"<%= crrspnd_fin_pln_dt_dd %>\">��� <span class=\"fsyl_2\">�E����������������E/span></td>\r\n");
    out.write("\t\t</tr>\r\n\t\t<tr>\r\n\t\t<td class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ������������E��</td>\r\n\t\t<td><input type=\"text\" maxlength=4 size=4 name=\"crrspnd_fin_dt_yyyy\" value=\"<%= crrspnd_fin_dt_yyyy %>\">��� <input type=\"text\" maxlength=2 size=2 name=\"crrspnd_fin_dt_mm\" value=\"<%= crrspnd_fin_dt_mm %>\">���E<input type=\"text\" size=2 maxlength=2 name=\"crrspnd_fin_dt_dd\" value=\"<%= crrspnd_fin_dt_dd %>\">��� <span class=\"fsyl_2\">�E����������������E/span></td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t<td valign=top class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ������������</td>\r\n\t\t<td><textarea rows=8 cols=72 name=\"cause_txt\"><%= UzString.htmlEncodeForHidden(cause_txt) %></textarea> <span class=\"fsyl_2\">�E�E000���E�����E/span></td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t<td valign=top class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ���������E��</td>\r\n\t\t<td><textarea rows=10 cols=72 name=\"crrspnd_txt\"><%= UzString.htmlEncodeForHidden(crrspnd_txt) %></textarea> <span class=\"fsyl_2\">�E�E000���E�����E/span></td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t<td valign=top class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ���������������E/td>\r\n\t\t<td><textarea rows=8 cols=72 name=\"rlps_prvnt_schm\"><%= UzString.htmlEncodeForHidden(rlps_prvnt_schm) %></textarea> <span class=\"fsyl_2\">�E�E000���E�����E/span></td>\r\n");
    out.write("\t\t</tr>\r\n\t\t</table>\r\n\t</td>\r\n\t</tr>\r\n<!---- ��������������������������������������� ���E----->\r\n\t<tr>\r\n\t<td valign=top class=\"fsyl_1\"><font class=\"fsyl_6\">���</font> ������������������E/td>\r\n\t<td>\r\n\t\t<table border=0 cellspacing=0 cellpadding=0>\r\n\t\t<tr valign=top>\r\n\t\t<td><input type=\"radio\" name=\"mail_sendto_div_radio\" checked onClick=\"mailCheck(true)\" value=\"<%= SKConstants.CD_ONE + SKConstants.SEPARATOR + \"������\" %>\">��������������� <input type=\"radio\" name=\"mail_sendto_div_radio\" onClick=\"mailCheck(false)\" value=\"<%= SKConstants.CD_ZERO + SKConstants.SEPARATOR + \"���������E��\" %>\">���������E��Enbsp; </td>\r\n\t\t<td>\r\n<%\r\n\tstrSelected = \"\";\r\n\tnLen = 0;\r\n\tif(arrOskCodeNameGroup != null) nLen = arrOskCodeNameGroup.length;\r\n\tint nExtra = (nLen/2) + (nLen%2);\r\n%>\r\n<%\r\n\tfor(int i=0;i<nLen;i++) \r\n\t{\r\n\t\tString cd = arrOskCodeNameGroup[i].getCode();\r\n\t\tString nm = arrOskCodeNameGroup[i].getName();\r\n\t\tString value = cd + SKConstants.SEPARATOR + nm;\r\n%>\r\n\t\t\t\t<input type=\"checkbox\" name=\"send_mail\" value=\"<%= value %>\"><%= nm %><br>\r\n<%\r\n\t\tif((i+1) == nExtra)\r\n\t\t{\r\n%>\r\n\t\t\t</td>\r\n\t\t\t<td>    </td>\r\n");
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         public String getMgrid() {
              return this.mgrid;
    }And finally, here's the error I get when i try to run myq.jsp:
    org.apache.jasper.JasperException: /WEB-INF/tags/displayCollection.tag(7,2) SetProperty: Mandatory attribute property missing     org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)
         org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
         org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:198)
         org.apache.jasper.compiler.JspUtil.checkAttributes(JspUtil.java:174)
         org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:595)
         org.apache.jasper.compiler.Node$SetProperty.accept(Node.java:1150)
         org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
         org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
         org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:647)
         org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1182)
         org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
         org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
         org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)
         org.apache.jasper.compiler.Node$Root.accept(Node.java:475)
         org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
         org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1789)
         org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:216)
         org.apache.jasper.compiler.Compiler.compile(Compiler.java:372)
         org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
         org.apache.jasper.compiler.Compiler.compile(Compiler.java:339)
         org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594)
         org.apache.jasper.servlet.JspServletWrapper.loadTagFile(JspServletWrapper.java:231)
         org.apache.jasper.compiler.TagFileProcessor.loadTagFile(TagFileProcessor.java:577)
         org.apache.jasper.compiler.TagFileProcessor.access$000(TagFileProcessor.java:48)
         org.apache.jasper.compiler.TagFileProcessor$TagFileLoaderVisitor.visit(TagFileProcessor.java:642)
         org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1539)
         org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
         org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
         org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)
         org.apache.jasper.compiler.Node$Root.accept(Node.java:475)
         org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
         org.apache.jasper.compiler.TagFileProcessor.loadTagFiles(TagFileProcessor.java:660)
         org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:228)
         org.apache.jasper.compiler.Compiler.compile(Compiler.java:372)
         org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
         org.apache.jasper.compiler.Compiler.compile(Compiler.java:339)
         org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:344)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:722)>
    as far as I can tell, the attribute mgr is set in myq.jsp when it invokes displayCollection.tag, and displayCOllection.tag's only attribute (required) is mgr. so uhm... what do I misunderstand?

    Nick,
    Thanks for your help.
    But I also face another problem that is
    "unable to load class com.jguru.FormBean" when I tried to call another jsp.
    Here are my code :
    package com.jguru;
    public class FormBean {
    private String LName;
    private String FName;
    private String Passwd;
    private String Tel;
    private String Title;
    private String Dept;
    private String Email;
    private String Accesstype;
    public FormBean() {
    LName="";
    FName="";
    Passwd="";
    Tel="";
    Title="";
    Dept="";
    Email="";
    Accesstype="";
    public String getLName() {
    return LName;
    public String getFName() {
    return FName;
    public String getPasswd() {
    return Passwd;
    public String getTel() {
    return Tel;
    public String getTitle() {
    return Title;
    public String getDept() {
    return Dept;
    public String getEmail() {
    return Email;
    public String getAccesstype() {
    return Accesstype;
    public void setLName(String x) {
    LName = x;
    public void setFName(String x) {
    FName = x;
    public void setPasswd(String x) {
    Passwd = x;
    public void setTel(String x) {
    Tel = x;
    public void setTitle(String x) {
    Title = x;
    public void setDept(String x) {
    Dept = x;
    public void setEmail(String x) {
    Email = x;
    public void setAccesstype(String x) {
    Accesstype = x;
    Thanks.

  • Custom tag with no body

     

    The method in your tag handler that is processing your tag (doStartTag()?
              doAfterBody()? doEndTag()?), should return SKIP_BODY if you don't want the
              tag handler to process the body. In your example it doesn't have a body
              anyway, so I guess you should still return SKIP_BODY.
              Hope this helps,
              Kevin Hooke
              In article <95sb9s$2tn$[email protected]>, <[email protected]> writes:
              >Hi,
              >
              >We seem to encounter the following problem:
              >WebLogic JSP engine cannot parse customed tag without a body correctly.
              >E.g., <xyz:foo attrib="value" /> would cause error "no corresponding
              >open tag ...". On the contrary, <xyz:foo attrib="value"></xyz:foo>
              >works fine. Does WebLogic enforces both oepn tag and close tag to be
              >present separately? If yes, is this specified in any of the document?
              >
              >We are using 5.1.
              >
              >Thanks,
              >
              >Xiao Ma
              >
              >
              >Sent via Deja.com
              >http://www.deja.com/
              ----- Posted via NewsOne.Net: Free (anonymous) Usenet News via the Web -----
              http://newsone.net/ -- Free reading and anonymous posting to 60,000+ groups
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              made through NewsOne.Net violate posting guidelines, email [email protected]
              

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