How to use

firePropertyChange

method

in

org.eclipse.ui.part.EditorPart

/**
 * Updates the error message shown in the editor.
 */
public void updateErrorMessage() {
  super.firePropertyChange(PROP_ERROR);
}

/**
 * Set an error message for this page.
 * 
 * @param error java.lang.String
 */
public void setErrorMessage(String error) {
  if (error == null && errorMessage == null)
    return;
  
  if (error != null && error.equals(errorMessage))
    return;
  
  errorMessage = error;
  super.firePropertyChange(PROP_ERROR);
}

@Override
protected void firePropertyChange(int property) {
  super.firePropertyChange(property);
  updatePropertyDependentActions();
}

@Override
protected void firePropertyChange(int property) {
  super.firePropertyChange(property);
  updatePropertyDependentActions();
}

protected void firePropertyChange(int property) {
  super.firePropertyChange(property);
  updatePropertyDependentActions();
}

/**
 * Sets the input to this editor and fires a PROP_INPUT property change if
 * the input has changed.  This is the convenience method implementation.
 *
 * <p>Note that firing a property change may cause other objects to reach back
 * and invoke methods on the editor. Care should be taken not to call this method
 * until the editor has fully updated its internal state to reflect the
 * new input.</p>
 *
 * @since 3.2
 *
 * @param input the editor input
 */
protected void setInputWithNotify(IEditorInput input) {
  Assert.isLegal(input != null);
  editorInput = input;
  firePropertyChange(PROP_INPUT);
}