Struts2 + display tag

[Sudhakar Duraiswamy]

Hi,
I am evaluating Display Tag , to see if it fits our pagination requirements.

If you observe the following snippet , the pagination works as intended as mentioned in the site .
But for every page link clicked the request is sent to action class and the execute method is fired again.

My Queries
1. Is there a way to avoid calling of execute method for each page click .As i would be fetching the entire list the first time when the page loads


I tried investigating on this , not much of luck ? Or am i missing something obvious


Can anyone please help me out here.

Reference : http://javateacher.co.in/misc-frameworks/struts-2-x/struts2-pagination-using-display-tag/

Action Class

public class EmployeeAction extends ActionSupport
{

	private static final long serialVersionUID = 6241935194381649471L;
	private List<Employee> employeeList=null;
	
	private List<String> select=null;
	@Override
	public String execute() throws Exception {	
		
		System.out.println("Selected Employee Id's= " +select);
		
		List<Employee> employeeList=new ArrayList<Employee>();
		employeeList.add(new Employee("1","SAM 1","NOIDA1","234234","[e-mail]"));
		employeeList.add(new Employee("2","SAM 2","NOIDA2","2342341","[e-mail]"));
		employeeList.add(new Employee("3","SAM 3","NOIDA3","2342341","[e-mail]"));
		employeeList.add(new Employee("4","SAM 4","NOIDA4","2342341","[e-mail]"));
		employeeList.add(new Employee("5","SAM 5","NOIDA5","2342341","[e-mail]"));
		employeeList.add(new Employee("6","SAM 6","NOIDA6","2342341","[e-mail]"));
		employeeList.add(new Employee("7","SAM 7","NOIDA7","2342341","[e-mail]"));
		employeeList.add(new Employee("8","SAM 8","NOIDA8","2342341","[e-mail]"));
		employeeList.add(new Employee("9","SAM 9","NOIDA9","2342341","[e-mail]"));
		employeeList.add(new Employee("10","SAM 10","NOIDA10","2342341","[e-mail]"));
		employeeList.add(new Employee("11","SAM 11","NOIDA11","2342341","[e-mail]"));
						
		setEmployeeList(employeeList);		
		return SUCCESS;
	}

	public List getEmployeeList() {
		return employeeList;
	}

	public void setEmployeeList(List employeeList) {
		this.employeeList = employeeList;
	}

	public List getSelect() {
		return select;
	}

	public void setSelect(List select) {
		this.select = select;
	}

}

JSP:

      <display:table id="employee" name="employeeList" 
        pagesize="5" export="false" requestURI="/employee">
        
   <display:column titleKey="" >   
    <input type="checkbox" name="select" value="${employee.empId}"/>
   </display:column>  
   
    <display:column property="empId" title="Employee Id" href="show.do" paramId="empId" sortable="true"/>
    <display:column property="empName" title="Employee Name" sortable="true"  />
    <display:column property="empAddr" title="Employee Address" sortable="true"  />
    <display:column property="empPhone" title="Employee Phone" sortable="true"  />
    <display:column property="empEmail" title="Employee Email" sortable="true" />
    <display:column  title="" property="editLink" url="/delete.do" paramId="empId" paramProperty="empId" />
    <display:column   title="" property="deleteLink" url="/edit.do" paramId="empId" paramProperty="empId" />
    <display:caption>This is the table caption</display:caption>
     <display:setProperty name="paging.banner.placement" value="bottom" />
     </display:table>

[Jesus Mireles]

You could put the list in a static field if its always going to be static. If not you can also use wildcard mapping for the methods in your action.