util/Stringtable.java

   1
   2 package org.de.metux.util;
   3
   4 import java.util.*;
   5
   6 // FIXME: should be obsoleted by class Properties
   7
   8 public class Stringtable
   9 {
  10     private Hashtable h;
  11
  12     public Stringtable(Hashtable ht)
  13     {
  14         h = ht;
  15     }
  16
  17     public Stringtable()
  18     {
  19         h = new Hashtable();
  20     }
  21
  22     public void remove(String key)
  23     {
  24         if (key==null)
  25             return;
  26         h.remove(key);
  27     }
  28
  29     public String get(String key)
  30     {
  31         if ((key==null) || (key.equals("")))
  32             return "";
  33
  34         return (String)h.get(key);
  35     }
  36
  37     public void set(String key, String value)
  38     {
  39         if ((key==null)||(key.length()==0))
  40             return;
  41
  42         if ((value==null)||(value.length()==0))
  43             h.remove(key);
  44         else
  45             h.put(key,value);
  46     }
  47
  48     public final void add(String key, String value)
  49     {
  50         if ((key==null)||(key.equals(""))||(value==null)||(value.equals("")))
  51             return;
  52
  53         String ex = (String)h.get(key);
  54         if (ex==null)
  55             h.put(key,value);
  56         else
  57             h.put(key,ex+" "+value);
  58     }
  59
  60     public final Enumeration keys()
  61     {
  62         return h.keys();
  63     }
  64 }