Home Struts Struts2 Struts2controltags Subset Tag (Control Tags) Example



Subset Tag (Control Tags) Example
Posted on: July 17, 2007 at 12:00 AM
In this section, we are going to describe the subset tag . The subset tag is a generic tag that takes an iterator and outputs a subset of it

Subset Tag (Control Tags) Example

     

In this section, we are going to describe the subset tag. The subset tag is a generic tag that takes an iterator and outputs a subset of it. It delegates to org.apache.struts2.util.SubsetIteratorFilter internally to perform the subset functionality.

Add the following code snippet into the struts.xml file.

struts.xml

<action name="subsetTag" class="net.roseindia.subsetTag">
   <result>/pages/genericTags/subsetTag.jsp</result>
</action>

Create a list in the action class  and populate it with various items as shown in the "subsetTag" class.

subsetTag.java

package net.roseindia;
import com.opensymphony.xwork2.ActionSupport;
import java.util.*;

public class subsetTag extends ActionSupport {
  private List myList;

  public String execute() throws Exception{
  myList = new ArrayList();
  myList.add(new Integer(50));
  myList.add(new Integer(20));
  myList.add(new Integer(100));
  myList.add(new Integer(85));
  myList.add(new Integer(500));
  return SUCCESS;
  }

  public List getMyList(){
  return myList;
  }
}

Now create a jsp page using <s:subset> and <s:iterator> tags as  shown in the subsetTag.jsp page. The subset tag  takes an iterator and outputs a subset of it. 

subsetTag.jsp

<%taglib prefix="s" uri="/struts-tags" %>

<html>
  <head>
  <title>Subset Tag Example!</title>
  </head>
  <body>
  <h1><span style="background-color: #FFFFcc">Subset Tag Example!</span></h1>
  <s:subset source="myList">
  <s:iterator>
  <s:property /><br>
  </s:iterator>
  </s:subset>
  </body>
</html>

Output of Subset Tag:

Related Tags for Subset Tag (Control Tags) Example:
cjspiteratortagsoutputpagetagusingsetcreatejsshowtoshsubseteitputinsubasoutjesagehowtorssuspatkeaandttssthshosubs.jsoutputsndo


More Tutorials from this section

Ask Questions?    Discuss: Subset Tag (Control Tags) Example   View All Comments

Post your Comment


Your Name (*) :
Your Email :
Subject (*):
Your Comment (*):
  Reload Image
 
 

Ask Questions?

If you are facing any programming issue, such as compilation errors or not able to find the code you are looking for.

Ask your questions, our development team will try to give answers to your questions.