/// <summary>
/// Indexer
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public ICollection <TValue> this[TKey key] {
get { return(InnerMap.GetOrAdd(key, k => new List <TValue>())); }
set {
if (value != null)
{
Add(key, value.ToArray <TValue>());
}
else
{
this[key].Clear();
}
}
}
/// <summary>
/// 해당 키에 값이 없다면 값을 넣고, 반환합니다.
/// </summary>
/// <param name="key"></param>
/// <param name="valueFactory"></param>
/// <returns></returns>
public ICollection <TValue> GetOrAdd(TKey key, Func <TKey, ICollection <TValue> > valueFactory)
{
valueFactory.ShouldNotBeNull("valueFactory");
if (ContainsKey(key))
{
var values = this[key];
foreach (var value in valueFactory(key))
{
values.Add(value);
}
return(values);
}
return(InnerMap.GetOrAdd(key, valueFactory));
}
public ISet <TValue> GetOrAdd(TKey key, ISet <TValue> values)
{
return(InnerMap.GetOrAdd(key, k => values));
}
public ISet <TValue> GetOrAdd(TKey key, Func <TKey, ISet <TValue> > valuesFactory)
{
return(InnerMap.GetOrAdd(key, valuesFactory));
}