Content and Label Provider

Create the following label and content provider for your JFace viewers.

   
package de.vogella.dnd.jface.viewers;

import java.util.List;

import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;

import de.vogella.dnd.jface.model.Todo;

public class TableContentProvider implements IStructuredContentProvider {

 @Override
 public Object[] getElements(Object inputElement) {
  List list = (List) inputElement;
  return list.toArray();
 }

 @Override
 public void dispose() {
  
 }

 @Override
 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 }

}

  

   
package de.vogella.dnd.jface.viewers;

import java.util.List;

import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;

public class TreeContentProvider implements ITreeContentProvider {

 @Override
 public Object[] getChildren(Object parentElement) {
  return null;
 }

 @Override
 public Object getParent(Object element) {
  return null;
 }

 @Override
 public boolean hasChildren(Object element) {
  return false;
 }

 @Override
 public Object[] getElements(Object inputElement) {
  List list = (List) inputElement;
  return list.toArray();
 }

 @Override
 public void dispose() {
  
 }

 @Override
 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 }

}

  

   
package de.vogella.dnd.jface.viewers;

import org.eclipse.jface.viewers.BaseLabelProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.swt.graphics.Image;

import de.vogella.dnd.jface.model.Todo;

public class TableLabelProvider extends BaseLabelProvider implements
  ITableLabelProvider {

 @Override
 public Image getColumnImage(Object element, int columnIndex) {
  return null;
 }

 @Override
 public String getColumnText(Object element, int columnIndex) {
  Todo todo = (Todo) element;
  switch (columnIndex) {
  case 0:
   return todo.getShortDescription();
  case 1:
   return todo.getLongDescription();
  }
  return "Not supported";
 }

}

  

   
package de.vogella.dnd.jface.viewers;

import org.eclipse.jface.viewers.LabelProvider;


public class TreeLabelProvider extends LabelProvider {
 @Override
 public String getText(Object element) {
  String s = (String) element;
  return s;
 }

}