Custom tag runtime expression problem
Hi all, I'm using Tomcat 5.0.29. I've created a custom tag and I need to be able to use runtime expressions for certain attributes. But it isn't working and I'm beating my head on the desk trying to figure out why. Here's my TLD: ?xml version=1.0 encoding=UTF-8? !DOCTYPE taglib PUBLIC -//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd; taglib tlibversion1.2/tlibversion jspversion1.1/jspversion shortnamemytags/shortname uricom/company/taglib/uri tag namebutton/name tagclasscom.company.app.taglib.ButtonTag/tagclass bodycontentempty/bodycontent attribute nameid/name requiredtrue/required rtexprvaluetrue/rtexprvalue /attribute attribute nameonClick/name requiredtrue/required rtexprvaluetrue/rtexprvalue /attribute attribute /tag /tag /taglib Specifically, I'm trying to do this on the page: %@ taglib uri=/WEB-INF/apptags.tld prefix=app % ... % String fName = (String)hm.get(name); % app:button id=btnSelect onClick=selectAll(%=fName%); / Now, the button renders its code just fine, the *ONLY* thing that isn't working is that the emitted HTML includes the string %=fName% instead of it being evaluated. I've verified that the fName string *DOES* get the appropriate value in it. So, as near as I can tell, the taglib code itself, all the setup, etc., is fine, *EXCEPT* for the ability to do runtime expressions like this. What am I missing? Does this need to be turned on in Tomcat or something? I wouldn't think so, but I'm at a loss. Thanks! Frank - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Custom tag runtime expression problem
On 8/18/05, Frank W. Zammetti [EMAIL PROTECTED] wrote: Hi all, I'm using Tomcat 5.0.29. I've created a custom tag and I need to be able to use runtime expressions for certain attributes. But it isn't working and I'm beating my head on the desk trying to figure out why. Here's my TLD: ?xml version=1.0 encoding=UTF-8? !DOCTYPE taglib PUBLIC -//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd; snip/ I'd go with a 2.0 TLD since you're on TC 5.x. Is that possible? Plus you will get to use EL instead of JSP expressions in tag attribute values. -Rahul - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Custom tag runtime expression problem
Don't know exactly, but a good place to look is the source code for the JSTL from commons. They are making some calls in there to transform the values of EL and expressions. Wade --- Frank W. Zammetti [EMAIL PROTECTED] wrote: Hi all, I'm using Tomcat 5.0.29. I've created a custom tag and I need to be able to use runtime expressions for certain attributes. But it isn't working and I'm beating my head on the desk trying to figure out why. Here's my TLD: ?xml version=1.0 encoding=UTF-8? !DOCTYPE taglib PUBLIC -//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd; taglib tlibversion1.2/tlibversion jspversion1.1/jspversion shortnamemytags/shortname uricom/company/taglib/uri tag namebutton/name tagclasscom.company.app.taglib.ButtonTag/tagclass bodycontentempty/bodycontent attribute nameid/name requiredtrue/required rtexprvaluetrue/rtexprvalue /attribute attribute nameonClick/name requiredtrue/required rtexprvaluetrue/rtexprvalue /attribute attribute /tag /tag /taglib Specifically, I'm trying to do this on the page: %@ taglib uri=/WEB-INF/apptags.tld prefix=app % ... % String fName = (String)hm.get(name); % app:button id=btnSelect onClick=selectAll(%=fName%); / Now, the button renders its code just fine, the *ONLY* thing that isn't working is that the emitted HTML includes the string %=fName% instead of it being evaluated. I've verified that the fName string *DOES* get the appropriate value in it. So, as near as I can tell, the taglib code itself, all the setup, etc., is fine, *EXCEPT* for the ability to do runtime expressions like this. What am I missing? Does this need to be turned on in Tomcat or something? I wouldn't think so, but I'm at a loss. Thanks! Frank - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
