How to use

mxGraphModel$Filter

in

com.mxgraph.model

/**
 * 
 */
public static Object[] filterCells(Object[] cells, Filter filter)
{
  ArrayList<Object> result = null;
  if (cells != null)
  {
    result = new ArrayList<Object>(cells.length);
    for (int i = 0; i < cells.length; i++)
    {
      if (filter.filter(cells[i]))
      {
        result.add(cells[i]);
      }
    }
  }
  return (result != null) ? result.toArray() : null;
}

/**
 * Creates a collection of cells using the visitor pattern.
 */
public static Collection<Object> filterDescendants(mxIGraphModel model,
    Filter filter, Object parent)
{
  List<Object> result = new ArrayList<Object>();
  if (filter == null || filter.filter(parent))
  {
    result.add(parent);
  }
  int childCount = model.getChildCount(parent);
  for (int i = 0; i < childCount; i++)
  {
    Object child = model.getChildAt(parent, i);
    result.addAll(filterDescendants(model, filter, child));
  }
  return result;
}

/**
 * 
 */
public static Object[] filterCells(Object[] cells, Filter filter)
{
  ArrayList<Object> result = null;
  if (cells != null)
  {
    result = new ArrayList<Object>(cells.length);
    for (int i = 0; i < cells.length; i++)
    {
      if (filter.filter(cells[i]))
      {
        result.add(cells[i]);
      }
    }
  }
  return (result != null) ? result.toArray() : null;
}

/**
 * Creates a collection of cells using the visitor pattern.
 */
public static Collection<Object> filterDescendants(mxIGraphModel model,
    Filter filter, Object parent)
{
  List<Object> result = new ArrayList<Object>();
  if (filter == null || filter.filter(parent))
  {
    result.add(parent);
  }
  int childCount = model.getChildCount(parent);
  for (int i = 0; i < childCount; i++)
  {
    Object child = model.getChildAt(parent, i);
    result.addAll(filterDescendants(model, filter, child));
  }
  return result;
}