Hi, I'm having a bug in my application that the user's session attribute SOMETIMES does not get updated/refreshed as expected, but I don't know the reason why. Please advise what I'm doing wrong. Here is my test scenario
1) UserAction class fetches a list of employees with review status and store the list
in an ArrayList
2) UserAction class set this ArrayList object in a session attribute
3) UserAction class forwards to a view
4) A view uses above ArrayList object in session to display a list of employees with
their review status (reject/approve)
5) The user selects one or more employees and submit for approval or/and rejection
6) UserAction class saves the employee(s) review status
7) UserAction class rebuilds the ArrayList by fetching from a database
8) same as step 2
9) same as step 3
10) same as step 4
I debugged the code and I found that the data get saved correctly in step 6 and
returned with updated values in step 7. But, SOMETIMES that data in a session
attribute does not get updated. If I refresh browser window, it displays the new
updated data.
Here's my code snippet
####### UserAction class ##########
. . .
// get a list of employees. Returns an array list of EmployeeVO objects
List employeeList = employeeDAO.getEmployeeReviewList( manager.getEmployeeId() );
// make sure to destroy previous employeeList object before setting a new one
List tmpObj = (List)session.getAttribute( USER_EMPLOYEE_LIST_VIEW_KEY );
tmpObj = null;
// now set the object in a session attributes
session.setAttribute( USER_EMPLOYEE_LIST_VIEW_KEY, employeeList );
. . .
######## Value Object ###########
/**
* The Value Object will be placed in the session; therefore it needs to be
* serializable so the container can persist sessions if needed.
*/
public class EmployeeVO extends PersonVO implements Serializable {
. . .
}
######## JSP View ############
<jsp:useBean id="employeeList" scope="session" class="java.util.ArrayList" />
<%
// number of employees returned from the list
if ( employeeList != null ) {
int listSize = employeeList.size();
}
%>
<html:html locale="true">
<head>
<html:base/>
<title><bean:message key="app.label.title" /></title>
<link rel="stylesheet" type="text/css" href="common/styles/styleMid.css">
<script language="javaScript">
<%@ include file="CommonJSFunctions.js"%>
</script>
</head>
<body>
<html:form action="/approveSubmit"
name="approveSubmitForm"
type="com.phs.ezhr.presentation.form.ApproveSubmitForm"
method="POST"
target="_parent">
<tabe>
<logic:present name="employeeList" scope="session">
<!-- Iterate over the results of the query. Max of 25 records per page -->
<logic:iterate id="employee" name="employeeList" scope="session"
type="com.phs.ezhr.business.vo.EmployeeVO" indexId="idx" length="25" offset="<%=
""+count %>">
// ------------------------------------------------------------------
// output employee data with review status here.
// I'm using JSP scripting instead of <bean:write> tag
// Could this have any conflicts?????? Below is a sample code
// ------------------------------------------------------------------
<tr>
<td><%= employee.getReviewStatus() %></td>
</tr>
</logic:iterate>
</logic:present>
</table>
</html:form>
</body>
</html:html>
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