package mypackage;
import java.util.ArrayList;
import java.util.List;
import javax.faces.application.Application;
import javax.faces.component.UIColumn;
import javax.faces.component.UIOutput;
import javax.faces.component.html.HtmlCommandLink;
import javax.faces.component.html.HtmlDataTable;
import javax.faces.component.html.HtmlOutputText;
import javax.faces.context.FacesContext;
import javax.faces.el.MethodBinding;
import javax.faces.el.ValueBinding;
import javax.faces.event.ActionEvent;
public class MyBean {
private List<List<String>> myList;
private List<List<String>> myHeader;
private List<List<Integer>> myNum;
private HtmlDataTable dynamicDataTable;
private HtmlDataTable headerDataTable;
private HtmlDataTable numDataTable;
private static int tempWidth = 30;
// Load Data from DataBase to Every DataTable --------------------------------
public void loadMyList() throws Exception {
myList = new ArrayList<List<String>>();
int row = 25;
while(row > 0) {
int column = 25;
String str = "o";
List <String> tmpvector = new ArrayList <String> ();
while(column > 0) {
tmpvector.add(str);
column--;
}
row--;
myList.add(tmpvector);
}
}
public void loadMyHeader() throws Exception {
myHeader = new ArrayList<List<String>>();
String str = "*****";
int column = 25;
List <String> tmpvector = new ArrayList <String> ();
while(column > 0) {
tmpvector.add(str);
column--;
}
myHeader.add(tmpvector);
}
public void loadMyNum() throws Exception {
myNum = new ArrayList<List<Integer>>();
int row = 0;
while(row < 25) {
List <Integer> tmpvector = new ArrayList <Integer> ();
tmpvector.add(row);
myNum.add(tmpvector);
row++;
}
}
//initialize Every DataTable to the Front-------------------------------------
public void populateDynamicDataTable() {
if (myList != null && myList.size() > 0) {
dynamicDataTable = new HtmlDataTable();
int columns = ((List) myList.get(0)).size();
System.out.println("DisplayCloumn: " + columns);//
for (int i = 0; i < columns; i++) {
ValueBinding myItem =
FacesContext.getCurrentInstance().getApplication().createValueBinding("#{myItem[" + i + "]}");
UIColumn column = new UIColumn();
HtmlOutputText outputText = new HtmlOutputText();
outputText.setValueBinding("value", myItem);
outputText.setStyle("width: " + tempWidth + "");
column.getChildren().add(outputText);
column.setId("col_" + i); //You should set ID of every component which you create in the Backing-Bean .
dynamicDataTable.getChildren().add(column);
}
}
}
public void populateHeaderDataTable() {
if (myHeader != null && myHeader.size() > 0) {
headerDataTable = new HtmlDataTable();
int columns = ((List) myHeader.get(0)).size();
FacesContext facesContext = FacesContext.getCurrentInstance();
Application application = facesContext.getApplication();
for (int i = 0; i < columns; i++) {
HtmlCommandLink commandLink =
(HtmlCommandLink) application.createComponent(HtmlCommandLink.COMPONENT_TYPE);
String valueBindingExpression = "#{myHeader[" + i + "]}";
ValueBinding valueBinding = application.createValueBinding(valueBindingExpression);
commandLink.setValueBinding("value", valueBinding);
commandLink.setId("head_comankLink_" + i);//The most important!!! If you dont put it nothing is gonna happen.
commandLink.setStyle("color: blue");
commandLink.setStyle("width: " + tempWidth + "");
commandLink.getAttributes();
Class[] params = { ActionEvent.class };
MethodBinding actionListener =
application.createMethodBinding("#{myBean.setSelectedDocumentId}", params);
commandLink.setActionListener(actionListener);
commandLink.setImmediate(true);
UIColumn column = new UIColumn();
column.getChildren().add(commandLink);
column.setId("head_" + i);
headerDataTable.getChildren().add(column);
}
}
}
public void populateNumDataTable() {
if (myNum != null && myNum.size() > 0) {
numDataTable = new HtmlDataTable();
UIOutput output = new UIOutput();
ValueBinding myItem =
FacesContext.getCurrentInstance().getApplication().createValueBinding("#{myNum[0]}");
output.setValueBinding("value", myItem);
// Set column.
UIColumn column = new UIColumn();
column.getChildren().add(output);
column.setId("num");
numDataTable.getChildren().add(column);
}
}
//Test Actions and ActionListeners--------------------------------------------
public void setSelectedDocumentId(ActionEvent event) throws Exception
{
}
// Getters -------------------------------------------------------------------
public HtmlDataTable getDynamicDataTable() throws Exception {
if (dynamicDataTable == null) {
loadMyList(); // Reload to get most recent data.
populateDynamicDataTable();
}
return dynamicDataTable;
}
public HtmlDataTable getHeaderDataTable() throws Exception {
if (headerDataTable == null) {
loadMyHeader(); // Reload to get most recent data.
populateHeaderDataTable();
}
return headerDataTable;
}
public HtmlDataTable getNumDataTable() throws Exception {
if (numDataTable == null) {
loadMyNum(); // Reload to get most recent data.
populateNumDataTable();
}
return numDataTable;
}
public List<List<Integer>> getMyNum() {
return myNum;
}
public List<List<String>> getMyHeader() {
return myHeader;
}
public List<List<String>> getMyList() {
return myList;
}
// Setters -------------------------------------------------------------------
public void setDynamicDataTable(HtmlDataTable dynamicDataTable) {
this.dynamicDataTable = dynamicDataTable;
}
public void setHeaderDataTable(HtmlDataTable headerDataTable) {
this.headerDataTable = headerDataTable;
}
public void setMyHeader(List<List<String>> myHeader) {
this.myHeader = myHeader;
}
public void setNumDataTable(HtmlDataTable numDataTable) {
this.numDataTable = numDataTable;
}
public void setMyNum(List<List<Integer>> myNum) {
this.myNum = myNum;
}
public void setMyList(List<List<String>> myList) {
this.myList = myList;
}
}
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