JSF - Delete Data of a DataTable

In this section, we'll showcase the adding deleting capability in dataTable.

Example Application

Let us create a test JSF application to test the above functionality.

Step	Description
1	Create a project with a name helloworld under a package com.tutorialspoint.test as explained in the JSF - Display DataTable subchapter of JSF - DataTables chapter.
2	Modify home.xhtml as explained below. Keep the rest of the files unchanged.
3	Compile and run the application to make sure the business logic is working as per the requirements.
4	Finally, build the application in the form of war file and deploy it in Apache Tomcat Webserver.
5	Launch your web application using appropriate URL as explained below in the last step.

home.xhtml

<?xml version = "1.0" encoding = "UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns = "http://www.w3.org/1999/xhtml"   
xmlns:h = "http://java.sun.com/jsf/html"
xmlns:f = "http://java.sun.com/jsf/core">
   
   <h:head>
      <title>JSF tutorial</title>		
      <h:outputStylesheet library = "css" name = "styles.css"  /> 	
   </h:head>
   
   <h:body> 
      <h2>DataTable Example</h2>
      
      <h:form>
         <h:dataTable value = "#{userData.employees}" var = "employee"
            styleClass = "employeeTable"
            headerClass = "employeeTableHeader"
            rowClasses = "employeeTableOddRow,employeeTableEvenRow">
            
            <h:column>    				
               <f:facet name = "header">Name</f:facet>    				
               <h:inputText value = "#{employee.name}"
                 size = "10" rendered = "#{employee.canEdit}" />
               <h:outputText value = "#{employee.name}"
                  rendered = "#{not employee.canEdit}" />
            </h:column>
            
            <h:column>
               <f:facet name = "header">Department</f:facet>
               <h:inputText value = "#{employee.department}" 
                  size = "20" rendered = "#{employee.canEdit}" />
               <h:outputText value = "#{employee.department}" 
                  rendered = "#{not employee.canEdit}" />
            </h:column>
            
            <h:column>
               <f:facet name = "header">Age</f:facet>
               <h:inputText value = "#{employee.age}" size = "5"
                  rendered = "#{employee.canEdit}" />
               <h:outputText value = "#{employee.age}" 
                  rendered = "#{not employee.canEdit}" />
            </h:column>
            
            <h:column>
               <f:facet name = "header">Salary</f:facet>
               <h:inputText value = "#{employee.salary}" 
                  size = "5" rendered = "#{employee.canEdit}" />
               <h:outputText value = "#{employee.salary}" 
                  rendered = "#{not employee.canEdit}" />
            </h:column>
            
            <h:column>
               <f:facet name = "header">Delete</f:facet>
               <h:commandButton value = "Delete" 
                  action = "#{userData.deleteEmployee}"  />                
                  <f:setPropertyActionListener 
                     target = "#{userData.employee}" value = "#{employee}" />
               </h:commandButton>
            </h:column>
         
         </h:dataTable>  
      </h:form>
   </h:body>
</html>

Once you are ready with all the changes done, let us compile and run the application as we did in JSF - First Application chapter. If everything is fine with your application, this will produce the following result.

Click delete button of any row. Following will be the output.

jsf_data_tables.htm