package net.innig.macker.example.conventions;

import java.util.*;
import java.io.*;

public final class AlphaTree
    extends StringTree
    {
    public AlphaTree(AlphaTree parent, String word)
        { super(parent, word); }
    
    protected Set/*<String>*/ getChildSuffixes()
        {
        if(lettersAsStrings == null)
            {
            lettersAsStrings = new TreeSet();
            for(char c = 'a'; c <= 'z'; c++)
                lettersAsStrings.add(String.valueOf(c));
            }
        return lettersAsStrings;
        }
    
    protected StringTree makeChild(String childWord)
        { return new AlphaTree(this, childWord); }
    
    private static Set lettersAsStrings;
    }