public void add(String key, Object value) {
    validFieldName(key);
    ObjectFieldOperation op = OperationBuilder.gBuilder.create(OperationBuilder.OperationType.Add, key, value);
    addNewOperation(op);
  }
public void add ( String key , Object value ) { validFieldName ( key ) ; ObjectFieldOperation op = OperationBuilder . gBuilder . create ( OperationBuilder . OperationType . Add , key , value ) ; addNewOperation ( op ) ; }
changable operations.