True, but that doesn't solve the particular problem I was describing. If you are breaking up a page into multiple pages because the compiled size blows the JVM limit, you have to use <jsp:include>. The include directive includes at compile time, so you're no better off than when you started.
-- Martin Cooper ----- Original Message ----- From: Dan Gross <[EMAIL PROTECTED]> To: Tag Libraries Users List <[EMAIL PROTECTED]> Sent: Wednesday, December 05, 2001 2:05 PM Subject: Re: How to determing the relationship between tags > If you use an include directive, like: > > <%@ include file="pageContainingTag2.jsp" %> > > instead of a JSP include, then findAncestorWithClass() will work. > > --Dan > > Martin Cooper wrote: > > >One thing to be aware of with findAncestorWithClass() is that it works only > >within the JSP page. This is not surprising in itself. However, if you want > >to be able to have the nested tag in an included page, you can't use this > >mechanism to find the parent. > > > >That is, with this code in the page: > > > > <mytags:tag1 ... > > > <mytags:tag2 ... /> > > </mytags:tag1> > > > >tag2 can find tag1 using findAncestorWithClass() just fine. However, with > >this: > > > > <mytags:tag1 ... > > > <jsp:include page="pageContainingTag2.jsp" /> > > </mytags:tag1> > > > >tag2 will be unable to find tag1 using findAncestorWithClass(). > > > >It may not always be necessary to be able to do this, but I point it out > >because we had this issue with the Struts HTML tags. The various <html:*> > >tags need to refer to their containing <html:form> tag. However, if the form > >gets very large, and the page breaks the limit on the size of a compiled > >method, you are forced to split the form across pages. To make this work in > >Struts, the doStartTag() method in <html:form> stores a reference to itself > >as a request attribute, the nested tags use that, and then doEndTag() cleans > >it up. > > > >-- > >Martin Cooper > > > > > >----- Original Message ----- > >From: Shawn Bayern <[EMAIL PROTECTED]> > >To: Tag Libraries Users List <[EMAIL PROTECTED]>; > ><[EMAIL PROTECTED]> > >Sent: Wednesday, December 05, 2001 12:20 PM > >Subject: Re: How to determing the relationship between tags > > > > > >>On Wed, 5 Dec 2001, bo wrote: > >> > >>>I wonder if I can determine the relationship among tags, such as tag A > >>>should be within tag B etc. Is that possible? Thanks! > >>> > >>You can use a TagLibraryValidator class to enforce arbitrary > >>characteristics of the XML view of a JSP page, including specific > >>relationships among tags. For an example of a SAX-based approach to > >>validation, see the JstlCoreTLV class in the "Standard" taglib. > >> > >>Tags can also, at runtime, gain access to their parent tag handlers. The > >>most convenient mechanism for doing this is, in most cases, the static > >>TagSupport.findAncestorWithClass() method, part of the JSP API. > >> > >>Hope that helps, > >> > >>Shawn > >> > >> > >>-- > >>To unsubscribe, e-mail: > >> > ><mailto:[EMAIL PROTECTED]> > > > >>For additional commands, e-mail: > >> > ><mailto:[EMAIL PROTECTED]> > > > > > > > >-- > >To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > >For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > > > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
