private static IComparer <Person> GetComparer(PersonCompareType personCompareType)
{
IComparer <Person> comparer;
return(PersonComparers.TryGetValue(personCompareType, out comparer)
? comparer
: (PersonComparers[personCompareType] = new PersonComparer(personCompareType)));
}
public static IComparer <Person> CreateComparerType(PersonCompareType personCompareType)
{
switch (personCompareType)
{
case PersonCompareType.FirstName:
return(GetComparer(personCompareType));
case PersonCompareType.LastName:
return(GetComparer(personCompareType));
default:
throw new ArgumentException("unexpected compare type");
}
}
public PersonComparsion(PersonCompareType compareType) => _compareType = compareType;
public PersonComparer(PersonCompareType compareType)
{
this.compareType = compareType;
}
public PersonComparer(PersonCompareType compareType)
{
_compareType = compareType;
}
public PersonComparer(PersonCompareType compareType) =>
public PersonComparer(PersonCompareType personCompareType)
{
_personCompareType = personCompareType;
}
public PersonComparer(PersonCompareType type)
{
compareType = type;
}
