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From Chris Pratt <thechrispr...@gmail.com>
Subject Re: iterable tag
Date Sat, 12 Jan 2013 21:22:49 GMT
You're right Dave, somehow I replied to the wrong email.  Looking over the
code now.
  (*Chris*)


On Sat, Jan 12, 2013 at 1:08 PM, Dave Newton <davelnewton@gmail.com> wrote:

> (Isn't it around where the iterator tag is in that source? I thought
> that *was* the OP's code this second barf of source.)
>
> Dave
>
>
> On Sat, Jan 12, 2013 at 4:04 PM, Chris Pratt <thechrispratt@gmail.com>
> wrote:
> > You said in your original post that you used the <s:iterator> tag,
> > correct?  Can I see how you used it?
> >   (*Chris*)
> >
> >
> > On Sat, Jan 12, 2013 at 3:06 AM, fusillator <fusillator@gmail.com>
> wrote:
> >
> >> Sorry for my misunderstanding, I changed the code of the wiki tutorial
> >> about wildcard
> >>
> >> These is the view:
> >>
> >> <%@ page language="java" contentType="text/html; charset=UTF-8"
> >>     pageEncoding="UTF-8"%>
> >> <%@ taglib prefix="s" uri="/struts-tags" %>
> >> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
> >> http://www.w3.org/TR/xhtml1/**DTD/xhtml1-transitional.dtd<
> http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd>
> >> ">
> >> <html xmlns="http://www.w3.org/1999/**xhtml <
> http://www.w3.org/1999/xhtml>
> >> ">
> >> <head>
> >> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
> >> <title>List of people</title>
> >> </head>
> >> <body>
> >> <h3>List of persons:</h3>
> >> <s:if test="people.isEmpty">
> >> <ol>
> >> <s:iterator value="people">
> >> <li>
> >> <s:property value="firstName" /> <s:property value="lastName" />
> >> <s:url action="removePerson" var="urlremove"><s:param name="code"
> >> value="id" /></s:url>
> >> <s:url action="editPerson" var="urledit"><s:param name="code" value="id"
> >> /></s:url>
> >> <s:a href="%{urledit}">Edit</s:a>
> >> <s:a href="%{urlremove}">Remove</s:**a>
> >> </li>
> >> </s:iterator>
> >> </ol>
> >> </s:if>
> >> <s:else>
> >> No person inserted
> >> </s:else>
> >> <s:url action="editPerson" var="urlnew" />
> >> <s:a href="%{urlnew}">Insert a new person</s:a>
> >> </body>
> >> </html>
> >>
> >> and this is the action class:
> >>
> >> package org.apache.struts.tutorial.**wildcard.action;
> >>
> >> import java.util.Collection;
> >> //import java.util.List;
> >> import org.apache.struts.tutorial.**wildcard.service.**PersonService;
> >> import org.apache.struts.tutorial.**wildcard.model.Person;
> >> import org.apache.log4j.Logger;
> >> import com.opensymphony.xwork2.**ActionSupport;
> >>
> >> public class PersonAction extends ActionSupport {
> >>
> >>     private static final long serialVersionUID = 1L;
> >>
> >>     private static final Logger logger =
> Logger.getLogger(PersonAction.**
> >> class.getName());
> >>
> >>     private Collection<Person> people=PersonService.**getPeople();
> >>     private int code=-1; //parametro passato da view
> >>     private Person personBean;
> >>     private PersonService personService=new PersonService();
> >>
> >>     @Override
> >>     public String execute(){
> >>         return SUCCESS;
> >>     }
> >>
> >>     public String edit(){
> >>         setPersonBean(personService.**getPerson(code));
> >>         return INPUT;
> >>     }
> >>
> >>     public String save(){
> >>         personService.savePerson(**getPersonBean());
> >>         return SUCCESS;
> >>     }
> >>
> >>     public String remove(){
> >>         personService.removePerson(**code);
> >>         return SUCCESS;
> >>     }
> >>
> >>     public Collection<Person> getPeople() {
> >>         return people;
> >>     }
> >>
> >>     public void setPeople(Collection<Person> people) {
> >>         this.people = people;
> >>     }
> >>
> >>     public int getCode() {
> >>         return code;
> >>     }
> >>
> >>     public void setCode(int code) {
> >>         this.code = code;
> >>     }
> >>
> >>     public Person getPersonBean() {
> >>         return personBean;
> >>     }
> >>
> >>     public void setPersonBean(Person personBean) {
> >>         this.personBean = personBean;
> >>     }
> >>
> >> }
> >>
> >> and my modified PersonService class:
> >>
> >> package org.apache.struts.tutorial.**wildcard.service;
> >>
> >> //import java.util.ArrayList;
> >> import java.util.Collection;
> >> //import java.util.List;
> >> import java.util.SortedMap;
> >> import java.util.TreeMap;
> >>
> >> import org.apache.log4j.Logger;
> >> import org.apache.struts.tutorial.**wildcard.model.Person;
> >>
> >> public class PersonService {
> >>
> >>     private static final Logger logger = Logger.getLogger(**
> >> PersonService.class.getName())**;
> >>
> >>     //static private List<Person> peopleList=new ArrayList<Person>();
> >>     static private SortedMap<Integer,Person> people=new
> >> TreeMap<Integer,Person>();
> >>     static {
> >>         people.put(new Integer(1), new
> Person(1,"Paolino","Paperino")**);
> >>         people.put(new Integer(2), new Person(2,"Paperon","De
> Paperoni"));
> >>         people.put(new Integer(3), new Person(3,"Archimede","**
> >> Pitagorica"));
> >>         //generateList();
> >>     }
> >>     /*
> >>     static void generateList(){
> >>         peopleList.clear();
> >>         for (Integer i : people.keySet()){
> >>             peopleList.add(people.get(i));
> >>         }
> >>     }
> >>     */
> >>     static public Collection<Person> getPeople(){
> >>         logger.debug(people.values());
> >>         logger.debug(people.values().**getClass().toString());
> >>         return people.values();
> >>     }
> >>
> >>     public Person getPerson(int code){
> >>         if (code<0)
> >>             return new Person(-1,"","");
> >>         else
> >>             return people.get(new Integer(code));
> >>     }
> >>
> >>     public void savePerson(Person person){
> >>         logger.debug(person);
> >>         if (person.getId()>=0){
> >>             people.put(new Integer(person.getId()),**person);
> >>         } else {
> >>             int id = people.isEmpty() ? 1 :
> people.lastKey().intValue()+1;
> >>             person.setId(id);
> >>             people.put(new Integer(id),person);
> >>         }
> >>         //generateList();
> >>     }
> >>
> >>     public void removePerson(int code){
> >>         people.remove(new Integer(code));
> >>         //generateList();
> >>     }
> >>
> >> }
> >>
> >>
> >> The mapping definitions are:
> >>
> >> <action name="*Person" class="org.apache.struts.**
> >> tutorial.wildcard.action.**PersonAction" method="{1}">
> >>             <result name="success">/view.jsp</**result>
> >>             <result name="input">/input.jsp</**result>
> >> </action>
> >>
> >> The model Person is a pojo with 3 attributes: firstName, lastName, id
> >>
> >> thanks for the support
> >>
> >> Il 12/01/2013 11:50, Umesh Awasthi ha scritto:
> >>
> >>  I believe what *Chris* has asked is to copy the code from your JSP page
> >>>
> >>> i believe you must be using <s:iterator> tag in your JSP page to
> iterate
> >>> some list
> >>> so please copy that code from your JSP and provide here
> >>>
> >>>
> >>>
> >>> On Sat, Jan 12, 2013 at 4:16 PM, fusillator <fusillator@gmail.com>
> wrote:
> >>>
> >>>  Hi Chris, not really sure how to find that code... Anyway this has
> been
> >>>> my
> >>>> steps:
> >>>> $ for lib in /opt/struts-2.3.7/lib/* ; do jar tvf $lib | grep tld &&
> echo
> >>>> $lib; done
> >>>>    3349 Wed Aug 10 12:51:32 CEST 2005 META-INF/sitemesh-decorator.****
> >>>> tld
> >>>>    3013 Sat May 15 11:55:14 CEST 2004 META-INF/sitemesh-page.tld
> >>>> /opt/struts-2.3.7/lib/****sitemesh-2.4.2.jar
> >>>> 346038 Tue Nov 06 08:13:06 CET 2012 META-INF/struts-tags.tld
> >>>> /opt/struts-2.3.7/lib/struts2-****core-2.3.7.jar
> >>>> 136496 Tue Nov 06 08:24:22 CET 2012 META-INF/struts-dojo-tags.tld
> >>>> /opt/struts-2.3.7/lib/struts2-****dojo-plugin-2.3.7.jar
> >>>>     752 Tue Nov 06 08:27:06 CET 2012 META-INF/tags/JsonPlugin.tld
> >>>> /opt/struts-2.3.7/lib/struts2-****json-plugin-2.3.7.jar
> >>>>       0 Tue May 13 21:39:54 CEST 2008 META-INF/tld/
> >>>>   27808 Tue May 13 21:39:54 CEST 2008 META-INF/tld/tiles-jsp.tld
> >>>> /opt/struts-2.3.7/lib/tiles-****jsp-2.0.6.jar
> >>>>
> >>>> $ jar xvf /opt/struts-2.3.7/lib/struts2-****core-2.3.7.jar
> >>>> META-INF/struts-tags.tld
> >>>>   \decompresso: META-INF/struts-tags.tld
> >>>>
> >>>> $ grep -n "<name>iterator</name>" META-INF/struts-tags.tld
> >>>> 4881:    <name>iterator</name>
> >>>>
> >>>> and the tag definition in the tld file is:
> >>>>
> >>>> <tag>
> >>>>      <description><![CDATA[Iterate over a iterable
> value]]></description>
> >>>>      <name>iterator</name>
> >>>>
> <tag-class>org.apache.struts2.****views.jsp.IteratorTag</tag-****class>
> >>>>      <body-content>JSP</body-****content>
> >>>>      <!-- here a lot of not interesting attributes-->
> >>>> </tag>
> >>>>
> >>>> $ find src -name IteratorTag.java
> >>>> src/core/src/main/java/org/****apache/struts2/views/jsp/****
> >>>> IteratorTag.java
> >>>>
> >>>> $ cat src/core/src/main/java/org/****apache/struts2/views/jsp/**
> >>>> IteratorTag.java
> >>>> /*
> >>>>   * $Id: IteratorTag.java 741179 2009-02-05 16:55:14Z musachy $
> >>>>   *
> >>>>   * Licensed to the Apache Software Foundation (ASF) under one
> >>>>   * or more contributor license agreements.  See the NOTICE file
> >>>>   * distributed with this work for additional information
> >>>>   * regarding copyright ownership.  The ASF licenses this file
> >>>>   * to you under the Apache License, Version 2.0 (the
> >>>>   * "License"); you may not use this file except in compliance
> >>>>   * with the License.  You may obtain a copy of the License at
> >>>>   *
> >>>>   *  http://www.apache.org/****licenses/LICENSE-2.0<
> http://www.apache.org/**licenses/LICENSE-2.0>
> >>>> <http://**www.apache.org/licenses/**LICENSE-2.0<
> http://www.apache.org/licenses/LICENSE-2.0>
> >>>> >
> >>>>   *
> >>>>   * Unless required by applicable law or agreed to in writing,
> >>>>   * software distributed under the License is distributed on an
> >>>>   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
> >>>>   * KIND, either express or implied.  See the License for the
> >>>>   * specific language governing permissions and limitations
> >>>>   * under the License.
> >>>>   */
> >>>>
> >>>> package org.apache.struts2.views.jsp;
> >>>>
> >>>> import javax.servlet.http.****HttpServletRequest;
> >>>> import javax.servlet.http.****HttpServletResponse;
> >>>> import javax.servlet.jsp.****JspException;
> >>>>
> >>>> import org.apache.struts2.components.****Component;
> >>>> import org.apache.struts2.components.****IteratorComponent;
> >>>>
> >>>> import com.opensymphony.xwork2.util.****ValueStack;
> >>>>
> >>>> /**
> >>>>   * @see IteratorComponent
> >>>>   */
> >>>> public class IteratorTag extends ContextBeanTag {
> >>>>
> >>>>      private static final long serialVersionUID =
> -1827978135193581901L;
> >>>>
> >>>>      protected String statusAttr;
> >>>>      protected String value;
> >>>>      protected String begin;
> >>>>      protected String end;
> >>>>      protected String step;
> >>>>
> >>>>      public Component getBean(ValueStack stack, HttpServletRequest
> req,
> >>>> HttpServletResponse res) {
> >>>>          return new IteratorComponent(stack);
> >>>>      }
> >>>>
> >>>>      protected void populateParams() {
> >>>>          super.populateParams();
> >>>>
> >>>>          IteratorComponent tag = (IteratorComponent) getComponent();
> >>>>          tag.setStatus(statusAttr);
> >>>>          tag.setValue(value);
> >>>>          tag.setBegin(begin);
> >>>>          tag.setEnd(end);
> >>>>          tag.setStep(step);
> >>>>      }
> >>>>
> >>>>      public void setStatus(String status) {
> >>>>          this.statusAttr = status;
> >>>>      }
> >>>>
> >>>>      public void setValue(String value) {
> >>>>          this.value = value;
> >>>>      }
> >>>>
> >>>>      public void setBegin(String begin) {
> >>>>          this.begin = begin;
> >>>>      }
> >>>>
> >>>>      public void setEnd(String end) {
> >>>>          this.end = end;
> >>>>      }
> >>>>
> >>>>      public void setStep(String step) {
> >>>>          this.step = step;
> >>>>      }
> >>>>
> >>>>      public int doEndTag() throws JspException {
> >>>>          component = null;
> >>>>          return EVAL_PAGE;
> >>>>      }
> >>>>
> >>>>      public int doAfterBody() throws JspException {
> >>>>          boolean again = component.end(pageContext.****getOut(),
> >>>> getBody());
> >>>>
> >>>>          if (again) {
> >>>>              return EVAL_BODY_AGAIN;
> >>>>          } else {
> >>>>              if (bodyContent != null) {
> >>>>                  try {
> >>>> bodyContent.writeOut(****bodyContent.****getEnclosingWriter());
> >>>>                  } catch (Exception e) {
> >>>>                      throw new JspException(e.getMessage());
> >>>>                  }
> >>>>              }
> >>>>              return SKIP_BODY;
> >>>>          }
> >>>>      }
> >>>>
> >>>> }
> >>>>
> >>>> Thanks a lot for your help.
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> Il 11/01/2013 20:21, Chris Pratt ha scritto:
> >>>>
> >>>>  Can you cut and paste your <s:iterator> code into the email so
we can
> >>>>> see?
> >>>>>     (*Chris*)
> >>>>>
> >>>>>
> >>>>> On Fri, Jan 11, 2013 at 11:12 AM, fusillator <fusillator@gmail.com>
> >>>>> wrote:
> >>>>>
> >>>>>   Hi all, I'm new to struts2/java matters, so be sympathetic please.
> >>>>>
> >>>>>> I've a question about <s:iterator> tag
> >>>>>>
> >>>>>> I recently used it to loop on a Iterable collection of type
> >>>>>> java.util.TreeMap$Values retrieved by the method
> >>>>>> java.util.TreeMap.values()
> >>>>>>
> >>>>>> getting the following cast exception:
> >>>>>>
> >>>>>> 2013-01-11 18:45:00,520 DEBUG org.apache.struts.tutorial.**
> >>>>>> wildcard.service.******PersonService.getPeople:33 [Person [1:
> Paolino
> >>>>>> Paperino], Person [2: Paperon De Paperoni], Person [3: Archimede
> >>>>>> Pitagorica]]
> >>>>>> 2013-01-11 18:45:00,523 DEBUG org.apache.struts.tutorial.**
> >>>>>> wildcard.service.******PersonService.getPeople:34 class
> >>>>>> java.util.TreeMap$Values
> >>>>>> 2013-01-11 18:45:00,523 DEBUG org.apache.struts.tutorial.**
> >>>>>> wildcard.service.******PersonService.getPeople:34 class
> >>>>>> java.util.TreeMap$Values
> >>>>>> gen 11, 2013 6:45:01 PM org.apache.jasper.compiler.*****
> >>>>>> *TldLocationsCache
> >>>>>> tldScanJar
> >>>>>> WARNING: Caught an exception while evaluating expression
> >>>>>> 'people.isEmpty'
> >>>>>> against value stack
> >>>>>> java.lang.ClassCastException: java.util.TreeMap$Values cannot
be
> cast
> >>>>>> to
> >>>>>> java.util.Set
> >>>>>>           at ognl.SetPropertyAccessor.******getProperty(**
> >>>>>> SetPropertyAccessor.java:47)
> >>>>>>           at com.opensymphony.xwork2.ognl.******accessor.**
> >>>>>> XWorkCollectionPropertyAccesso******r.getProperty(**
> >>>>>> XWorkCollectionPropertyAccesso******r.java:93)
> >>>>>>           at
> ognl.OgnlRuntime.getProperty(******OgnlRuntime.java:2300)
> >>>>>>
> >>>>>> The used variable is reported by log4j.
> >>>>>> Is there any restriction on the iterator tags?
> >>>>>> Could someone suggest me a tutorial/howto about ognl/value stack?
> >>>>>>
> >>>>>> Best regards
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> ------------------------------******--------------------------**--**
> >>>>>> --**---------
> >>>>>> To unsubscribe, e-mail: user-unsubscribe@struts.****apac**he.org<
> >>>>>> http://apache.org**>
> >>>>>> <user-unsubscribe@**struts.**apache.org <http://struts.apache.org><
> >>>>>> user-unsubscribe@**struts.apache.org<
> user-unsubscribe@struts.apache.org>
> >>>>>> >
> >>>>>> For additional commands, e-mail: user-help@struts.apache.org
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>  ------------------------------****----------------------------**
> >>>> --**---------
> >>>> To unsubscribe, e-mail: user-unsubscribe@struts.**apac**he.org<
> http://apache.org>
> >>>> <user-unsubscribe@**struts.apache.org<
> user-unsubscribe@struts.apache.org>
> >>>> >
> >>>> For additional commands, e-mail: user-help@struts.apache.org
> >>>>
> >>>>
> >>>>
> >>>
> >>
> >>
> ------------------------------**------------------------------**---------
> >> To unsubscribe, e-mail: user-unsubscribe@struts.**apache.org<
> user-unsubscribe@struts.apache.org>
> >>
> >> For additional commands, e-mail: user-help@struts.apache.org
> >>
> >>
>
>
>
> --
> e: davelnewton@gmail.com
> m: 908-380-8699
> s: davelnewton_skype
> t: @dave_newton
> b: Bucky Bits
> g: davelnewton
> so: Dave Newton
>
> ---------------------------------------------------------------------
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>

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