private IEnumerable <AggregationResult> Add(TKey key, TElement element)
{
if (Equals(key, _defaultKey))
{
if (_defaultGroup == null)
{
_defaultGroup = new Grouping(key);
_defaultGroup.Add(element);
return(new[] { AggregationResult.Added(_defaultGroup) });
}
_defaultGroup.Add(element);
return(new[] { AggregationResult.Modified(_defaultGroup) });
}
Grouping group;
if (!_groups.TryGetValue(key, out group))
{
group = new Grouping(key);
_groups[key] = group;
group.Add(element);
return(new[] { AggregationResult.Added(group) });
}
group.Add(element);
return(new[] { AggregationResult.Modified(group) });
}
public IEnumerable <AggregationResult> Modify(AggregationContext context, ITuple tuple, IEnumerable <IFact> facts)
{
var results = new List <AggregationResult>();
foreach (var fact in facts)
{
var collection = (IEnumerable <TElement>)fact.Value;
foreach (var value in collection)
{
if (_firstElements.TryGetValue(fact, out var oldFirst))
{
if (Equals(oldFirst, value))
{
results.Add(AggregationResult.Modified(value, value, Enumerable.Repeat(fact, 1)));
}
else
{
results.Add(AggregationResult.Removed(oldFirst));
results.Add(AggregationResult.Added(value, Enumerable.Repeat(fact, 1)));
}
}
else
{
results.Add(AggregationResult.Added(value, Enumerable.Repeat(fact, 1)));
}
_firstElements[fact] = value;
break;
}
}
return(results);
}
public IEnumerable <AggregationResult> Add(object fact)
{
var source = (TSource)fact;
var value = _selector(source);
_sourceToValue[source] = value;
return(new[] { AggregationResult.Added(value) });
}
public IEnumerable <AggregationResult> Add(object fact)
{
var source = (TSource)fact;
var value = _selector(source);
var list = value.ToList();
_sourceToList[source] = list;
return(list.Select(x => AggregationResult.Added(x)).ToArray());
}
public IEnumerable <AggregationResult> Add(ITuple tuple, IEnumerable <IFact> facts)
{
AddFacts(facts);
if (!_created)
{
_created = true;
return(new[] { AggregationResult.Added(_items) });
}
return(new[] { AggregationResult.Modified(_items) });
}
public IEnumerable <AggregationResult> Modify(object fact)
{
var source = (TSource)fact;
var value = _selector(source);
var list = value.ToList();
var oldList = _sourceToList[source];
_sourceToList[source] = list;
return(oldList.Select(x => AggregationResult.Removed(x)).Concat(
list.Select(x => AggregationResult.Added(x))).ToArray());
}
public IEnumerable <AggregationResult> Add(ITuple tuple, IEnumerable <IFact> facts)
{
var results = new List <AggregationResult>();
foreach (var fact in facts)
{
var value = _selector.Invoke(tuple, fact);
_sourceToValue[fact] = value;
results.Add(AggregationResult.Added(value));
}
return(results);
}
public IEnumerable <AggregationResult> Add(IEnumerable <object> facts)
{
var results = new List <AggregationResult>();
foreach (var fact in facts)
{
var source = (TSource)fact;
var value = _selector(source);
_sourceToValue[source] = value;
results.Add(AggregationResult.Added(value));
}
return(results);
}
private AggregationResult Add(TKey key, TElement element)
{
Grouping group;
if (!_groups.TryGetValue(key, out group))
{
group = new Grouping(key);
_groups[key] = group;
group.Add(element);
return(AggregationResult.Added(group));
}
group.Add(element);
return(AggregationResult.Modified(group));
}
public IEnumerable <AggregationResult> Add(AggregationContext context, ITuple tuple, IEnumerable <IFact> facts)
{
var results = new List <AggregationResult>();
foreach (var fact in facts)
{
var collection = (IEnumerable <TElement>)fact.Value;
foreach (var value in collection)
{
_firstElements[fact] = value;
results.Add(AggregationResult.Added(value, Enumerable.Repeat(fact, 1)));
break;
}
}
return(results);
}
public IEnumerable <AggregationResult> Modify(object fact)
{
var source = (TSource)fact;
var value = _selector(source);
var oldValue = _sourceToValue[source];
_sourceToValue[source] = value;
if (Equals(oldValue, value))
{
return new[] { AggregationResult.Modified(value) }
}
;
return(new[] { AggregationResult.Removed(oldValue), AggregationResult.Added(value) });
}
public IEnumerable <AggregationResult> Add(IEnumerable <object> facts)
{
var results = new List <AggregationResult>();
foreach (var fact in facts)
{
var source = (TSource)fact;
var value = _selector(source);
var list = new List <TResult>(value);
_sourceToList[source] = list;
foreach (var item in list)
{
results.Add(AggregationResult.Added(item));
}
}
return(results);
}
public IEnumerable <AggregationResult> Modify(ITuple tuple, IEnumerable <IFact> facts)
{
var results = new List <AggregationResult>();
foreach (var fact in facts)
{
var source = (TSource)fact.Value;
var value = _selector.Invoke(tuple, fact);
var oldValue = (TResult)_sourceToValue[source];
_sourceToValue[source] = value;
if (Equals(oldValue, value))
{
results.Add(AggregationResult.Modified(value));
}
else
{
results.Add(AggregationResult.Removed(oldValue));
results.Add(AggregationResult.Added(value));
}
}
return(results);
}
public IEnumerable <AggregationResult> Initial()
{
return(new[] { AggregationResult.Added(_items) });
}
