Re: What is the functionality of struts 2 anchor tag?

[akshi gupta]

Hello,

I am unable to use this method in my tag handler can you please help me 
. Following is my tag handler code :

package com.axis.tag;

import java.util.Properties;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.Tag;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.BodyContent;

import org.apache.struts2.components.Component;
import org.apache.struts2.views.jsp.ui.AnchorTag;

import com.axis.utils.PropertyLoader;
import com.opensymphony.xwork2.util.ValueStack;

public class MyAnchorTag extends AnchorTag {

  
  
   /**
    *
    */
   private static final long serialVersionUID = 1L;
  
   private PageContext pageContext;
   private Tag parent;
   protected String preInvokeJS;
   protected String targets;
   protected ValueStack stack ;
   public HttpServletRequest req;
   public HttpServletResponse res;
  
   @Override
   public void doInitBody() throws JspException {
       super.doInitBody();
   }

   @Override
   public void setBodyContent(BodyContent arg0) {
       super.setBodyContent(arg0);
   }

   @Override
   public int doAfterBody() throws JspException {
      return super.doAfterBody();
   }

   @Override
   public int doStartTag() throws JspException {
       Properties props = 
PropertyLoader.loadPropertiesBundle("resources/permissionParameter");
      
      
       String permission = props.getProperty("permission");
       System.out.println(" Method :" + permission);
       if(permission == null){
           return super.doStartTag();
       }
      
       return SKIP_BODY;
   }
  
   @Override
   public int doEndTag() throws JspException {
       return EVAL_BODY_INCLUDE;
   }

   @Override
   public Tag getParent() {
       return super.getParent();
   }
  
   @Override
   public Component getComponent() {
       // TODO Auto-generated method stub
       return super.getComponent();
   }

   @Override
   public void release() {
       super.release();
   }

   @Override
   public void setPageContext(PageContext pageContext) {
       this.pageContext = pageContext;
       super.setPageContext(pageContext);
   }

   @Override
   public void setParent(Tag parent) {
       this.parent = parent;
       super.setParent(parent);
   }

   @Override
   public Component getBean(ValueStack stack, HttpServletRequest req,
           HttpServletResponse res) {
      
       return super.getBean(stack, req, res);
      
   }
  
   @Override
   protected void populateParams() {
       // TODO Auto-generated method stub
       super.populateParams();
   }
}

Thanks,
Akshi


Musachy Barroso wrote:
In org.apache.struts2.components.Achor

public void evaluateExtraParams() {
        super.evaluateExtraParams();

        if (href != null)
            addParameter("href",
ensureAttributeSafelyNotEscaped(findString(href)));
}


On Fri, May 9, 2008 at 9:59 AM, akshi gupta <[EMAIL PROTECTED]> wrote:
  
Actually I am writing my own custom tag by extending AnchorTag class because
I want "href" value for some business rules thats why I wanthref evaluated
value.

Now can you tell me from which method href evaluated value is coming?

Thanks,
Akshi


Musachy Barroso wrote:
    
I am not really sure why you want to know but here is the short
explanation:

 <s:url id="edit" action="edit" method="input" namespace="/">

This will construct a url like: "/edit.action", and push it into the
stack, associated with the key "edit" (from the "id" attribute). Later
on

<s:a href="%{edit}" >Edit</s:a>

"%{edit}" will be evaluated against the stack and "/edit.action" will
be found, so that is the value that the anchor tag will use on its
href.

musachy


On Fri, May 9, 2008 at 8:59 AM, akshi gupta <[EMAIL PROTECTED]> wrote:

      
Hello,

If we use anchor tag like this :

(ListSuccess.jsp) :          ========>     <%@ taglib prefix="s"
uri="/struts-tags"%>
.............................
.............................
 ========>     <s:url id="edit" action="edit" method="input"
namespace="/"
/>
 ========>      <s:a href="%{edit}" >Edit</s:a>


Now , how href value get parse and get the complete url ?
Exactly through which method of the AnchorTag.java?

Can anyone please help me out ?


Thanks,

Akshi


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