pure interface of class SimpleNode

public class SimpleNode
  implements Node
{
    protected Node parent;
    protected Node[] children;
    protected int id;
    protected PremonJJTParser parser;
    public SimpleNode(int i);
    public SimpleNode(PremonJJTParser p,
                      int i);
    public void jjtOpen();
    public void jjtClose();
    public void jjtSetParent(Node n);
    public Node jjtGetParent();
    public void jjtAddChild(Node n,
                            int i);
    public Node jjtGetChild(int i);
    public int jjtGetNumChildren();
    public String toString();
    public String toString(String prefix);
    public void dump(String prefix);
}