{
  // register some standard convertors at construction time
	// no-op convertors: cvt from primitive wrappers to the object wrapper
	TypeConvertor tc = new TypeConvertor () {
	  public Object convert (Class from, Class to, Object obj) {
	      return obj;
	  }
	  public String getCodeGenString() {
		return "(Class from, Class to, Object obj) {\n" +
			   "return obj;\n" +
			   "}";
	  }
	};
	register (Boolean.class, boolean.class, tc);
	register (boolean.class, Boolean.class, tc);
	register (Byte.class, byte.class, tc);
	register (byte.class, Byte.class, tc);
	register (Character.class, char.class, tc);
	register (char.class, Character.class, tc);
	register (Short.class, short.class, tc);
	register (short.class, Short.class, tc);
	register (Integer.class, int.class, tc);
	register (int.class, Integer.class, tc);
	register (Long.class, long.class, tc);
	register (long.class, Long.class, tc);
	register (Float.class, float.class, tc);
	register (float.class, Float.class, tc);
	register (Double.class, double.class, tc);
	register (double.class, Double.class, tc);
	// object to string: the registry special cases this one as the backup
	// if the target is string and there is no special convertor available
	// otherwise
	tc = new TypeConvertor () {
	  public Object convert (Class from, Class to, Object obj) {
	      return (obj == null) ? "(null)" : obj.toString ();
	  }
		public String getCodeGenString() {
		return "(Class from, Class to, Object obj) {\n" +
			   "return (obj == null) ? \"(null)\" : obj.toString ();\n" +
			   "}";
		}
	};
	register (Object.class, String.class, tc);
	// convert strings to various primitives (both their object versions
	// and wrappers for primitive versions)
	tc = new TypeConvertor () {
	  public Object convert (Class from, Class to, Object obj) {
		String str = (String) obj;
		if (to == Boolean.class || to == boolean.class) {
		  return Boolean.valueOf (str);
		} else if (to == Byte.class || to == byte.class) {
		  return Byte.valueOf (str);
		} else if (to == Character.class || to == char.class) {
		  return new Character (str.charAt (0));
		} else if (to == Short.class || to == short.class) {
		  return Short.valueOf (str);
		} else if (to == Integer.class || to == int.class) {
		  return Integer.valueOf (str);
		} else if (to == Long.class || to == long.class) {
		  return Long.valueOf (str);
		} else if (to == Float.class || to == float.class) {
		  return Float.valueOf (str);
		} else if (to == Double.class || to == double.class) {
		  return Double.valueOf (str);
		} else {
		  return null;
		}
	  }
		public String getCodeGenString() {
		return "(Class from, Class to, Object obj) {\n" +
			   "String str = (String) obj;\n" +
			   "if (to == Boolean.class || to == boolean.class) {\n" +
			   "return Boolean.valueOf (str);\n" +
			   "} else if (to == Byte.class || to == byte.class) {\n" +
			   "return Byte.valueOf (str);\n" +
			   "} else if (to == Character.class || to == char.class) {\n" +
			   "return new Character (str.charAt (0));\n" +
			   "} else if (to == Short.class || to == short.class) {\n" +
			   "return Short.valueOf (str);\n" +
			   "} else if (to == Integer.class || to == int.class) {\n" +
			   "return Integer.valueOf (str);\n" +
			   "} else if (to == Long.class || to == long.class) {\n" +
			   "return Long.valueOf (str);\n" +
			   "} else if (to == Float.class || to == float.class) {\n" +
			   "return Float.valueOf (str);\n" +
			   "} else if (to == Double.class || to == double.class) {\n" +
			   "return Double.valueOf (str);\n" +
			   "} else {\n" +
			   "return null;\n" +
			   "}\n" +
			   "}";
	  }
	};
	register (String.class, boolean.class, tc);
	register (String.class, Boolean.class, tc);
	register (String.class, byte.class, tc);
	register (String.class, Byte.class, tc);
	register (String.class, char.class, tc);
	register (String.class, Character.class, tc);
	register (String.class, short.class, tc);
	register (String.class, Short.class, tc);
	register (String.class, int.class, tc);
	register (String.class, Integer.class, tc);
	register (String.class, long.class, tc);
	register (String.class, Long.class, tc);
	register (String.class, float.class, tc);
	register (String.class, Float.class, tc);
	register (String.class, double.class, tc);
	register (String.class, Double.class, tc);
	// strings to fonts
	tc = new TypeConvertor () {
	  public Object convert (Class from, Class to, Object obj) {
	      return Font.decode ((String) obj);
	  }
	  public String getCodeGenString() {
		return "(Class from, Class to, Object obj) {\n" +
			   "return Font.decode ((String) obj);\n" +
			   "}";
	  }
	};
	register (String.class, Font.class, tc);
	// strings to colors
	tc = new TypeConvertor () {
	  public Object convert (Class from, Class to, Object obj) {
	      return Color.decode ((String) obj);
	  }
		public String getCodeGenString() {
		return "(Class from, Class to, Object obj) {\n" +
			   "return Color.decode ((String) obj);\n" +
			   "}";
		}
	};
	register (String.class, Color.class, tc);
}