private void Upsert(DictionaryModification <TKey, TValue> modification)
{
TValue existingValue;
if (_dictionary._state.TryGetValue(modification.Key, out existingValue))
{
try
{
var newValue = _dictionary._updateFunction(modification.Key, existingValue, modification.Value);
_dictionary._state[modification.Key] = newValue;
_dictionary._subject.OnNext(DictionaryNotification.Updated(modification.Key, newValue,
modification.Value, existingValue));
}
catch (Exception ex)
{
_dictionary._error = ex;
_dictionary._subject.OnError(
new ObservableDictionaryUpdateException("Exception thrown when updating " + modification, ex));
}
}
else
{
_dictionary._state[modification.Key] = modification.Value;
_dictionary._subject.OnNext(DictionaryNotification.Inserted(modification.Key, modification.Value));
}
}
private void Upsert(DictionaryModification <TKey, TValue> modification)
{
TValue existingValue;
if (_dictionary._state.TryGetValue(modification.Key, out existingValue))
{
try
{
// TODO Check order is correct here.
var newValue = _dictionary._updateFunction.Invoke(modification.Key, existingValue,
modification.Value);
_dictionary._state[modification.Key] = newValue;
_dictionary._subject.OnNext(DictionaryNotification.Updated(modification.Key, newValue,
modification.Value, existingValue));
}
catch (Exception ex)
{
// TODO Check that this errors the whole stream.
_dictionary._error = ex;
_dictionary._subject.OnError(
new ObservableDictionaryUpdateException("Exception thrown when updating " + modification, ex));
}
}
else
{
_dictionary._state[modification.Key] = modification.Value;
_dictionary._subject.OnNext(DictionaryNotification.Inserted(modification.Key, modification.Value));
}
}
