Can Struts-EL be used with Struts 1.0.2? Of course, assuming I pull the necessary files from the nightly.
Sri > -----Original Message----- > From: Madel,Kurt [mailto:kmadel@;csmi.com] > Sent: Thursday, November 14, 2002 10:03 AM > To: 'Struts Users Mailing List' > Subject: RE: Struts Tags vs. JSTL > > > The nightly build has exactly what you are looking for in the > contrib folder. Here is the readme: > > > Struts-EL extension > =================== > > Introduction > ------------ > > This subproject is an extension of the Struts tag library. > Each JSP custom tag in this library is a subclass of an > associated tag in the Struts tag library. One difference is > that this tag library does not use "rtexprvalues", it uses > the expression evaluation engine in the JSP Standard Tag > Library (version > 1.0) > to evaluate attribute values. > > In addition, some of the Struts tags were not ported to this > library, as it was determined that their functionality was > entirely supplied by the JSTL. These particular Struts tags, > and the reason for their non-porting will be described in the > documentation for this library. > > In order to fully understand the correct utilization of this > library, you must understand the use and operation of the > Struts tag library, and the use and operation of the > JavaServer Pages Standard Tag Library (hereafter called the > "JSTL"), along with the expression language (sometimes called > the "EL") used for evaluating attribute values. > > Tag Mapping > ----------- > > In implementing the Struts-EL library, every Struts tag that > provides a feature that is not covered by the JSTL (1.0) > library is mapped into the Struts-EL library. This section > reviews which Struts tags are NOT implemented in the > Struts-EL library, and which JSTL tags provide that feature. > > Many of the non-porting decisions were based on the fact that > the JSTL expression language itself provides the same > functionality. In those cases, in addition to a possible > JSTL tag name, the symbol "EL" will be listed. > > Bean Tag Library Tags NOT Implemented in Struts-EL > -------------------------------------------------- > > Struts Tag JSTL Tag > ---------- -------- > cookie c:set, EL > define c:set, EL > header c:set, EL > include c:import > parameter c:set, EL > write c:out > > Logic Tag Library Tags NOT Implemented in Struts-EL > -------------------------------------------------- > > Struts Tag JSTL Tag > ---------- -------- > empty c:if, c:when, EL > equal c:if, c:when, EL > greaterEqual c:if, c:when, EL > greaterThan c:if, c:when, EL > lessEqual c:if, c:when, EL > lessThan c:if, c:when, EL > notEmpty c:if, c:when, EL > notEqual c:if, c:when, EL > notPresent c:if, c:when, EL > present c:if, c:when, EL > > Html Tag Library Tags NOT Implemented in Struts-EL > -------------------------------------------------- > > None (all of them were ported). > > Attribute Mapping > ----------------- > > At this point of the implementation, there is only one change > (to two similar > tags) to the set of attributes between the Struts tags, and > the Struts-EL tags. The "logic:match" and "logic:notMatch" > tags have an additional attribute named "expr", which can > take any value, and will be used as the value to compare > against, in addition to the choices of "cookie", "header", > "name"/"property", and "parameter". > > Usage Requirements > ------------------ > > The Struts-EL tag library requires the use of the Struts tag > library, and the Java Server Pages Standard Tag Library. It > is not necessary for JSP pages using the Struts-EL tag > library to also use the Struts tags or the JSTL tags, but the > Struts and JSTL tag libraries need to be part of the > application utilizing the Struts-EL tag library. > > This is because the Struts-EL tag classes are all subclasses > of Struts tag classes, and their implementation uses classes > provided by the JSTL. > > Kurt Madel > Programmer, CSMi > (703) 823-4300 ext. 170 > > > -----Original Message----- > From: Hohlen, John [mailto:JHohlen@;erac.com] > Sent: Thursday, November 14, 2002 9:58 AM > To: Struts-Help (E-mail) > Subject: Struts Tags vs. JSTL > > My team is interested in using the JSTL as it offers several > advantages (standardization, container optimization, > expression language, potential future tools, etc.). Until > now, we've strictly been using the Struts custom tags (and a > few that we extended). > > These are the guidelines I want to setup for our developers: > 1) If a tag's functionality is duplicated in both the JSTL > and Struts, use the JSTL version. In the long run, it will > probably deprecate the Struts tag. > 2) For tags tied directly to the Struts framework (e.g. > <html:errors>, <html:javascript>, etc.), use the Struts > version (for obvious reasons). > > Does this make sense? Have others done this? One thing I > was hoping to put together for our team was a cross-reference > of tags between the JSTL and the Struts tag libraries. This > cross-reference would contain information about which tags > provide duplicate functionality, which tags are tied to the > Struts framework, etc. Has anyone seen something like this? > > Thanks, > > JOHN > > -- > To unsubscribe, e-mail: > <mailto:struts-user-> [EMAIL PROTECTED]> > For > additional commands, > e-mail: <mailto:struts-user-help@;jakarta.apache.org> > > -- > To unsubscribe, e-mail: > <mailto:struts-user-> [EMAIL PROTECTED]> > For > additional commands, > e-mail: <mailto:struts-user-help@;jakarta.apache.org> > > -- To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org>
