private void WrapPartitionedStreamHelper <TLeftKey, TRightKey, TOutputKey>(
PartitionedStream <Pair <TLeftInput, TKey>, TLeftKey> leftHashStream,
HashLookupBuilder <IEnumerable <TRightInput>, TRightKey, TKey>[] rightLookupBuilders,
HashJoinOutputKeyBuilder <TLeftKey, TRightKey, TOutputKey> outputKeyBuilder, IComparer <TOutputKey> outputKeyComparer,
IPartitionedStreamRecipient <TOutput> outputRecipient, int partitionCount, CancellationToken cancellationToken)
{
PartitionedStream <TOutput, TOutputKey> outputStream = new PartitionedStream <TOutput, TOutputKey>(
partitionCount, outputKeyComparer, OrdinalIndexState);
for (int i = 0; i < partitionCount; i++)
{
outputStream[i] = new HashJoinQueryOperatorEnumerator <TLeftInput, TLeftKey, IEnumerable <TRightInput>, TRightKey, TKey, TOutput, TOutputKey>(
leftHashStream[i], rightLookupBuilders[i], _resultSelector, outputKeyBuilder, cancellationToken);
}
outputRecipient.Receive(outputStream);
}
//---------------------------------------------------------------------------------------
// Instantiates a new hash-join enumerator.
//
internal HashJoinQueryOperatorEnumerator(
QueryOperatorEnumerator <Pair <TLeftInput, THashKey>, TLeftKey> leftSource,
HashLookupBuilder <TRightInput, TRightKey, THashKey> rightLookupBuilder,
Func <TLeftInput, TRightInput, TOutput> resultSelector,
HashJoinOutputKeyBuilder <TLeftKey, TRightKey, TOutputKey> outputKeyBuilder,
CancellationToken cancellationToken)
{
Debug.Assert(leftSource != null);
Debug.Assert(rightLookupBuilder != null);
Debug.Assert(resultSelector != null);
Debug.Assert(outputKeyBuilder != null);
_leftSource = leftSource;
_rightLookupBuilder = rightLookupBuilder;
_resultSelector = resultSelector;
_outputKeyBuilder = outputKeyBuilder;
_cancellationToken = cancellationToken;
}