public virtual void ClearItemsTest()
{
var item1 = new Item();
var item2 = new Item();
LightDictionaryBase <Item, Item> dict = Create <Item, Item>();
dict.Add(item1, item1);
dict.Add(item2, item2);
dict.Count.ShouldEqual(2);
dict.Clear();
dict.Count.ShouldEqual(0);
dict.ContainsKey(item1).ShouldBeFalse();
dict.ContainsKey(item2).ShouldBeFalse();
}
public virtual TValue AddOrUpdate <TItem, TValue>(TItem item, string path,
Func <TItem, object, TValue> addValueFactory,
UpdateValueDelegate <TItem, Func <TItem, object, TValue>, TValue, object> updateValueFactory,
object state = null)
{
Should.NotBeNull(item, "item");
Should.NotBeNull(path, "path");
Should.NotBeNull(addValueFactory, "addValueFactory");
Should.NotBeNull(updateValueFactory, "updateValueFactory");
LightDictionaryBase <string, object> dictionary = GetOrAddAttachedDictionary(item, true);
lock (dictionary)
{
object value;
if (dictionary.TryGetValue(path, out value))
{
value = updateValueFactory(item, addValueFactory, (TValue)value, state);
dictionary[path] = value;
return((TValue)value);
}
value = addValueFactory(item, state);
dictionary.Add(path, value);
return((TValue)value);
}
}
public virtual TValue GetOrAdd <TValue>(object item, string path, TValue value)
{
Should.NotBeNull(item, "item");
Should.NotBeNull(path, "path");
LightDictionaryBase <string, object> dictionary = GetOrAddAttachedDictionary(item, true);
lock (dictionary)
{
object oldValue;
if (dictionary.TryGetValue(path, out oldValue))
{
return((TValue)oldValue);
}
dictionary.Add(path, value);
return(value);
}
}
public virtual TValue GetOrAdd <TItem, TValue>(TItem item, string path, Func <TItem, object, TValue> valueFactory,
object state = null)
{
Should.NotBeNull(item, "item");
Should.NotBeNull(path, "path");
Should.NotBeNull(valueFactory, "valueFactory");
LightDictionaryBase <string, object> dictionary = GetOrAddAttachedDictionary(item, true);
lock (dictionary)
{
object oldValue;
if (dictionary.TryGetValue(path, out oldValue))
{
return((TValue)oldValue);
}
oldValue = valueFactory(item, state);
dictionary.Add(path, oldValue);
return((TValue)oldValue);
}
}
public virtual TValue AddOrUpdate <TItem, TValue>(TItem item, string path, TValue addValue,
UpdateValueDelegate <TItem, TValue, TValue, object> updateValueFactory,
object state = null)
{
Should.NotBeNull(item, nameof(item));
Should.NotBeNull(path, nameof(path));
Should.NotBeNull(updateValueFactory, nameof(updateValueFactory));
LightDictionaryBase <string, object> dictionary = GetOrAddAttachedDictionary(item, true);
lock (dictionary)
{
object value;
if (dictionary.TryGetValue(path, out value))
{
value = updateValueFactory(item, addValue, (TValue)value, state);
dictionary[path] = value;
return((TValue)value);
}
dictionary.Add(path, addValue);
return(addValue);
}
}