Error: Attribute binding invalid for tag ganttChart according to TLD

Question

Hi,
I am experimenting with writing my first custom tag and getting the stack trace:
org.apache.jasper.JasperException: /GanttFaces.jsp(18,3) Attribute binding invalid for tag ganttChart according to TLD
     org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
     org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
     org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:234)
     org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:989)
     org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:710)
     org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
when using a binding with my custom tag:
<jg:ganttChart binding="#{ganttFaces.ganttChart}" id="gantt1" .... >
The error message reads as if I have to make special considerations in the TLD file to enable binding, but I can't find anything about that. Thats how my tld file looks:
<taglib>
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>JGantt</shortname>
<uri>http://netronic.de/jgantt/taglibJSF</uri>
<info>My tag library </info>
<tag>
<name>ganttChart</name>
<tagclass>de.netronic.jgantt.server.jsf.JGanttChartTag</tagclass>
<info>The chart</info>
<attribute>
     <name>id</name>
     <required>true</required>
     <rtexprvalue>false</rtexprvalue>
</attribute>
</tag>
</taglib>
Any idea what I am missing?
Udo

Answer 1

In your TLD, I do not see any binding attribute! you ahe to define it
<attribute>
<name>binding</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
Afterwards, you should create the setter method in your tag class: setBinding(String binding)