public static Result max <Element, Result>(this IEnumerable <Element> items,
IGetTheValueOfAProperty <Element, Result> accessor)
where Result : IComparable <Result>
{
return(items.get_result_of_processing_all_with(new ReducingVisitor <Element, Result>(accessor, (a, b) =>
{
return a.CompareTo(b) > 0 ? a : b;
})));
}
public static ICompareTwoItems <Item> then_by <Item, Property>(this ICompareTwoItems <Item> previous_comparer,
IGetTheValueOfAProperty <Item, Property> accessor, ICompareTwoItems <Property> order)
where Property : IComparable <Property>
{
return((a, b) =>
{
var previous_result = previous_comparer(a, b);
return previous_result == 0 ? Sort <Item> .by(accessor, order)(a, b) : previous_result;
});
}
public static IProcessAndReturnAValue <Element, Result> create_summing_visitor <Element, Result>(
IGetTheValueOfAProperty <Element, Result> accessor)
{
return(new SummingVisitor <Element, Result>(accessor,
(x, y) =>
{
dynamic first = x;
dynamic second = y;
return first + second;
}));
}
public static Result avg <Element, Result>(this IEnumerable <Element> items,
IGetTheValueOfAProperty <Element, Result> accessor)
{
return(items.get_result_of_processing_all_with(
new AvgVisitor <Element, Result>(create_summing_visitor(accessor))));
}
public MatchingExtensionPoint(IGetTheValueOfAProperty <ItemToMatch, Property> accessor)
{
this.accessor = accessor;
}
public SummingVisitor(IGetTheValueOfAProperty <Element, Result> accessor, Func <Result, Result, Result> accumulator)
{
this.accessor = accessor;
this.accumulator = accumulator;
}
public static MatchingExtensionPoint <ItemToMatch, Property> with_attribute <Property>(
IGetTheValueOfAProperty <ItemToMatch, Property> get_the_value_of_a_property)
{
return(new MatchingExtensionPoint <ItemToMatch, Property>(get_the_value_of_a_property));
}
public ReducingVisitor(IGetTheValueOfAProperty <Element, Result> accessor, Func <Result, Result, Result> reducer)
{
this.reducer = reducer;
this.accessor = accessor;
first_result = true;
}
public static ICompareTwoItems <Item> then_by_descending <Item, Property>(this ICompareTwoItems <Item> previous_comparer,
IGetTheValueOfAProperty <Item, Property> accessor)
where Property : IComparable <Property>
{
return(previous_comparer.then_by(accessor, SortOrders.descending));
}
public static ICompareTwoItems <Item> by <Property>(IGetTheValueOfAProperty <Item, Property> accessor)
where Property : IComparable <Property>
{
return(by(accessor, SortOrders.@ascending));
}
public static ICompareTwoItems <Item> by <Property>(IGetTheValueOfAProperty <Item, Property> accessor,
params Property[] sort_order)
{
return((a, b) => Array.IndexOf(sort_order, accessor(a)) - Array.IndexOf(sort_order, accessor(b)));
}
public static ICompareTwoItems <Item> by <Property>(IGetTheValueOfAProperty <Item, Property> accessor,
ICompareTwoItems <Property> order)
where Property : IComparable <Property>
{
return((a, b) => order(accessor(a), accessor(b)));
}
with_attribute <Property>(IGetTheValueOfAProperty <Item, Property> accessor)
{
return(new MatchCreationExtensionPoint <Item, Property>(accessor));
}
public MatchCreationExtensionPoint(IGetTheValueOfAProperty <Item, Property> accessor)
{
this.accessor = accessor;
}
public EnumerableFilterExtensionPoint(IEnumerable <ItemToMatch> items_to_filter,
IGetTheValueOfAProperty <ItemToMatch, PropertyType> accessor)
{
this.items_to_filter = items_to_filter;
this.accessor = accessor;
}
public static EnumerableFilterExtensionPoint <Item, ItemProperty> filter <Item, ItemProperty>(
this IEnumerable <Item> enumerable,
IGetTheValueOfAProperty <Item, ItemProperty> accessor)
{
return(new EnumerableFilterExtensionPoint <Item, ItemProperty>(enumerable, accessor));
}
public PropertyMatcher(IGetTheValueOfAProperty <Item, Property> get_the_value,
Criteria <Property> property_criteria)
{
this.get_the_value = get_the_value;
this.property_criteria = property_criteria;
}
public MatchFactory(IGetTheValueOfAProperty <Item, Property> accessor)
{
this.accessor = accessor;
}
