JSF Example, selectBoxes, selectItems, outputText, inputText, commandButton, JSF 1.0, JSF

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Example showing how to use JSF-based panelGrid Tag and this is based on
already shown example in this web site link : Referring to the earlier example page

In this page we shall modify index.jsp page of the example as shown in the link above,
in order to show two buttons such as submit and cancel in a single row, but not using
HTML table tag, but instead using JSF-based panelGrid tag with column as 2.

The complete and modified index.jsp for executing this example is as shown below:











index.jsp
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="sampleHtml" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="sampleCore" %>
<html>
<body>
<sampleCore:view locale="en_US">
<sampleCore:loadBundle basename="sample" var="s"/>
<h4><sampleHtml:outputText value="#{s.title_text}"/></h4>
<sampleHtml:messages layout="table"/>
  <sampleHtml:form>
  <sampleHtml:selectManyCheckbox id="manyChkBoxes" value="#{SampleMGMTBean.selectedData}">
    Selected Many Checkboxes :
    <sampleCore:selectItems value="#{SampleMGMTBean.tableData}"/>
  </sampleHtml:selectManyCheckbox>
  <br>
  <sampleHtml:selectManyListbox id="manyListBoxes" value="#{SampleMGMTBean.selectedList}">
    selectManyListbox :
    <sampleCore:selectItems value="#{SampleMGMTBean.tableData}"/>
  </sampleHtml:selectManyListbox>
  <br>

  <sampleHtml:panelGrid columns="2">
    <sampleHtml:commandButton value="Submit"
	                        action="#{SampleMGMTBean.submitButton}"/>
    <sampleHtml:commandButton value="Cancel"
	                        action="#{SampleMGMTBean.cancelButton}"/>
  </sampleHtml:panelGrid>

  </sampleHtml:form>
</sampleCore:view>
</body>
</html>

The section above as bold, is showing usage of panelGrid JSF-based Tag and
this tag is having two child components such as commandButton with value
as "Submit" and "Cancel".

This panelGrid Tag will be forming a HTML table tag at runtime.

In order to execute this file, you will require various other files, such as
the managed bean "sample.ButtonEventCapture.java", faces-config.xml, web.xml,
preview.jsp page etc.


web.xml


<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
   http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
   version="2.5">
  <servlet>
    <servlet-name>JSF-FacesServlet</servlet-name>
	<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>JSF-FacesServlet</servlet-name>
	<url-pattern>*.jsf</url-pattern>
  </servlet-mapping>
</web-app>



faces-config.xml




<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC 
  "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN"
  "http://java.sun.com/dtd/web-facesconfig_1_0.dtd">
<faces-config>
 <managed-bean>
   <managed-bean-name>SampleMGMTBean</managed-bean-name>
   <managed-bean-class>
       sample.ButtonEventCapture
   </managed-bean-class>
   <managed-bean-scope>request</managed-bean-scope>
 </managed-bean>
 <navigation-rule>
   <navigation-case>
     <from-action>#{SampleMGMTBean.submitButton}</from-action>
     <to-view-id>/preview.jsf</to-view-id>
   </navigation-case>
 </navigation-rule>
 <validator>
   <validator-id>validateMe</validator-id>
   <validator-class>sample.SampleValidator</validator-class>
 </validator>
 <application>
 <locale-config/>
 <action-listener>sample.SampleActionlistener</action-listener>
 </application>
 <factory/>
 <lifecycle/>  
</faces-config>



ButtonEventCapture.java




package sample;

import java.io.PrintStream;
import java.util.Iterator;
import java.util.List;
import java.util.ArrayList;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;

import javax.faces.model.SelectItem;
import javax.faces.context.FacesContext;
import javax.faces.component.UIComponent;
import javax.faces.validator.Validator;

public class ButtonEventCapture
{

    public ButtonEventCapture()
    {
        tableData = new SelectItem[]{new SelectItem("zero","zero"),
                                     new SelectItem("one","one"),
                                     new SelectItem("two","two"),
                                     new SelectItem("three","three"),
                                     new SelectItem("four","four"),
                                     new SelectItem("five","five"),
                                     new SelectItem("six","six"),
                                     new SelectItem("seven","seven"),
                                     new SelectItem("eight","eight")};

        selectedData = new String[2];
        selectedData[0] = "two";
        selectedData[1] = "eight";

        chkBox = false;
        chkBoxLabel="Male";

        gridData = new ArrayList();
        gridData.add("1");
        gridData.add("2");
    }

    public void setTxtName(String txtName)
    {
        this.txtName = txtName;
    }

    public String getTxtName()
    {
        return txtName;
    }

    public void setTxtPass(String txtPass)
    {
        this.txtPass = txtPass;
    }

    public String getTxtPass()
    {
        return txtPass;
    }

    public String submitButton()
    {
        //do something useful here.
         return "preview";
    }
    public String cancelButton()
    {
        System.out.println("Cancel button is clicked...");
        return null;
    }

    public SelectItem[] getTableData() {
      return tableData;
    }
	public void setTableData(SelectItem[] objs) {
		System.out.println(objs.length +"  "+objs[0]);

	}
	public void setSelectedData(String[] arg) {
		System.out.println(arg.length + "  " +arg[0]);
		selectedData = arg;
	}
	public String[] getSelectedData() {
		return selectedData;
	}
	public void setSelectedList(String[] arg) {
		System.out.println(arg.length + "  " +arg[0]);
		selectedList = arg;
	}
	public String[] getSelectedList() {
		return selectedList;
	}
	public void setSelectedListData(String data) {
		selectedListData = data;
	}
	public String getSelectedListData() {
		return selectedListData;
	}
	public void setSelectedRadioData(String data) {
		selectedRadioData = data;
	}
	public String getSelectedRadioData() {
		return selectedRadioData;
	}
	public void setChkBox(boolean arg) {
		System.out.println(arg);
		chkBox = arg;
	}
	public boolean getChkBox() {
		return chkBox;
	}
	public void setChkBoxLabel(String arg) {
		System.out.println(arg);
	}
	public String getChkBoxLabel() {
		return chkBoxLabel;
	}

        public void setGridData(List lst) {
		gridData = lst;
	}
	public List getGridData() {
		return gridData;
	}
	public String[] getCountData() {
	  countData = new String[selectedData.length];
	  for(int i=0;i<countData.length;i++) {
	    countData[i] = i+"";
	  }
	  return countData;
	}
    String txtName = "";;
    String txtPass = "";

    SelectItem[] tableData;
    boolean chkBox;
    String chkBoxLabel;
    String[] selectedData;
    String[] selectedList;
    String selectedListData;
    String selectedRadioData;
    List gridData;
    String[] countData;
}



preview.jsp




<%@ taglib uri="http://java.sun.com/jsf/html" prefix="sampleHtml" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="sampleCore" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="jstlCore" %>

<html>
<body>
<h4>Preview</h4>
<sampleCore:view>
  <sampleHtml:form>
     <sampleHtml:dataTable width="100" first="0" border="0" bgcolor="#eeff44"
                 style="border: 1px solid #000000;" var="v1" value="#{SampleMGMTBean.countData}" >

      <sampleHtml:column>
        <sampleCore:facet name="header">
         <sampleHtml:outputText value="Selected Checkboxes"/>
        </sampleCore:facet>
                 <sampleHtml:outputText value="#{SampleMGMTBean.selectedData[v1]}"/>
      </sampleHtml:column>
      <sampleHtml:column>
        <sampleCore:facet name="header">
         <sampleHtml:outputText value="Selected List"/>
        </sampleCore:facet>
                 <sampleHtml:outputText value="#{SampleMGMTBean.selectedList[v1]}"/>
      </sampleHtml:column>

     </sampleHtml:dataTable>
  </sampleHtml:form>
</sampleCore:view>
</body>
</html>


You will require to have JDK and jsf-api.jar, jsf-impl.jar in classpath,
in order to sompile ButtonEventCapture.java file.


If anything missed out , please let me know at
techienjoy at yahoo . com











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