Sets the value of field 'content'. The field 'content' has
the following description: internal content storage
Parameters: content - the value of field 'content'.
Method unmarshalEnumClassName.
Parameters: reader - throws: org.exolab.castor.xml.MarshalException - if object isnull or if any SAXException is thrown during marshaling throws: org.exolab.castor.xml.ValidationException - if thisobject is an invalid instance according to the schema the unmarshaledorg.exolab.castor.builder.binding.EnumClassName