Object oriented design
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30-10-2019 - |
Pergunta
I have two csv files A and B. A is the master repository. I need to read those files, map the records of B to A and save the mapped records to another file. The class to hold records is, say Record. The class to hold the matched records is, say, RecordMatch.
class Record
{
string Id;
string Name;
string Address;
string City;
string State;
string Zipcode;
}
class RecordMatch
{
string Aid;
string AName;
string Bid;
string BName;
double NameMatchPercent;
}
The mapping scenario goes thus : First, against each record of B, the records of A are filtered using state, city and then zipcode. The records of A thus filtered are then compared with the record of B. This comparison is between the name field, and is a best-match comparison using a fuzzy string algorithm. The best match is selected and saved.
The string matching algorithm will give a percentage of match. Thus, the best result out of all the matches have to be selected.
Now that I tried my best to explain the scenario, I will come to the design issue. My initial design was to make a Mapper class, which will be something as below :
class Mapper
{
List<Record> ReadFromFile(File);
List<Record> FilterData(FilterType);
void Save(List<Record>);
RecordMatch MatchRecord(Record A, Record B);
}
But looking at the design, it simply seems to be a class wrapper over some methods. I dont see any OO design in it. I also felt that the Match() belongs more to the Record class than the Mapper class.
But on another look, I saw the class as implementing something resembling to Repository pattern.
Another way I think is to keep the Mapper class, and just move the Match() method to the Record class, something like this :
class Mapper
{
List<Record> ReadFromFile(File);
List<Record> FilterData(FilterType);
void Save(List<Record>);
}
class Record
{
string id;
string name;
string address;
// other fields;
public RecordMatch Match (Record record)
{
// This record will compare the name field with that of the passed Record.
// It will return RecordMatch specifyin the percent of match.
}
}
Now I am totally confused in this simple scenario. What would ideally be a good OO design in this scenario?
Nenhuma solução correta