IConverter

org.eclipse.core.databinding.conversion.IConverter
This is a simple example for a converter, which converts an integer to a string:

class MyIntegerToStringConverter implements IConverter() {
   /** delivers the conversion result */
   public Object convert(Object fromObject) {
      return fromObject.toString();
   }
   /** delivers the type, which shall be converted **/
   public Object getFromType() {
      return Integer.class;
   }
   /** delivers the type, to which shall be converted **/
   public Object getToType() {
      return String.class;
   }
}

In the package org.eclipse.core.internal.databinding.conversion diverse converters are already available.