Thanks Karr. Well it works now, but I am not too sure about what I did wrong or right :/
> -----Message d'origine----- > De : Karr, David [mailto:[EMAIL PROTECTED] > Envoyé : vendredi 5 mars 2004 15:41 > À : Tag Libraries Users List > Objet : RE: using JSTL 1.0.5 ExpressionEvaluatorManager for > custom tags > > > I'm not sure what is wrong. I used ExpressionEvaluatorManager (not > ExpressionUtil) to write Struts-EL, so you could inspect that code to > look for examples. > > Ask about enabling aspects of Struts logging in struts-user. It uses > commons-logging, so you should be able to set up a logging.properties > file with a higher debug level than the default. > > -----Original Message----- > From: Lionel PASQUIER [mailto:[EMAIL PROTECTED] > Sent: Friday, March 05, 2004 1:21 AM > To: Tag Libraries Users List > Subject: RE: using JSTL 1.0.5 ExpressionEvaluatorManager for > custom tags > > > Hello Karr, > > > You said that the bean "labels" is a java.util.List. > > However, you also > > said "table being the String ...". The error message, > > Well, I should have been more precise: > the table String is actually "${labels}", or at least I believe it is: > it is the String set by setTable(String) corresponding to the > parameter > "table" of the "selectitem" tag: <mytags:selectitem table="${labels}" > index="${iteratecount}" item="item"> > > So I thought that ${labels} should expand through > ExpressionUtil.evalNotNull into the List behind the bean > "labels". Am I > wrong? > > > > Also note that your "c:forEach" is putting the iterated item into > > "iterateCount", but I think you meant that to be the loop counter, > > which > > yes indeed I was talking about the counter, not the item. > Since foreach > has only begin and end parameter, it seems it stores an > Integer in var. > Well at least this part works in my tests. > My real problem is about the expand of ${labels} that leads to the > error I stated previously. > > PS: any idea about my log problem? maybe I should ask that in another > mail... > > > Lionel > > > > > -----Original Message----- > > From: Lionel PASQUIER [mailto:[EMAIL PROTECTED] > > Sent: Thursday, March 04, 2004 11:58 AM > > To: [EMAIL PROTECTED] > > Subject: using JSTL 1.0.5 ExpressionEvaluatorManager for custom tags > > > > > > Hello, > > > > I am willing to create custom tags that have the expression > evaluation > > > of the JSTL 1.0.5. I am using tomcat 4, JDK1.4, thus cannot > switch to > > JSTL1.1 . > > > > I found the > > org.apache.taglibs.standard.lang.support.ExpressionEvaluatorManager > > class that seems to be pretty cool. So I made my tags use it, but > > without success. In my case I have a tag like: <c:forEach > begin="${0}" > > > end="${labelssize - 1}" var="iteratecount"> > > <mytags:selectitem table="${labels}" index="${iteratecount}" > > item="item"> </c:forEach> > > > > where the bean "labels" contains a java.util.List . > > selectitem is supposed to return in the bean named "item" the > > Object at > > index ${iteratecount} of labels. > > > > So in the java code I put: > > Object object = ExpressionUtil.evalNotNull("SelectItem", > > "table", table, > > List.class, this, pageContext); *table being the String set > > by parameter > > table of cours* > > > > which, unfortunatly returns an error: > > "An error occurred while evaluating custom action attribute > > "table" with > > value "labels": Attempt to convert String "labels" to type > > "java.util.List", but there is no PropertyEditor for that > > type (null) " > > > > Isn't ExpressionUtil.evalNotNull not supposed to returned > the Object > > found behind the bean of resulting parsed String? > > > > Maybe the > > > org.apache.taglibs.standard.lang.support.ExpressionEvaluatorManager is > > > not supposed to be used for custom tags? Is there a howto > about this? > > > > I have also another question, but this might not be the > best mailing > > list to ask this: I am using taglibs with tomcat and struts. But I > > have a lot of logs that never show up anywhere :p (such as the > > taglib is not > > found, throws an error, or struts does not find the action, etc...). > > Could you suggest me a link or two to help me figure out how to > > configure the stuff correctly? > > > > Sorry if these questions have been asked many times already, > > but I could > > not find a suitable google answer... > > > > Lionel > > > > > --------------------------------------------------------------------- > > 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] > > > > > > --------------------------------------------------------------------- > 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] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
