title: quickfix.Message.getField method
body: <p>I am iterating over a quickfix Message. For a given field, how do I fetch the value for that field without knowing the type? <br />
  The quickfix.Message has methods like '<code>Double getDouble(int field), String getString(int field)</code>' etc also, methods like <code>DoubleField getField(DoubleField), StringField getField(StringField )</code> etc.<br/>
  I was expecting a method like '<code>Object get(int field)</code>' which returns Object <br />
  How do i retrieve the value without knowing the field type?</p>