[This is preliminary documentation and is subject to change.]

Collection<TOutput, TTime> CoGroupBy<TKey, TValue1, TValue2, TRecord2, TOutput>(
	Collection<TRecord2, TTime> other,
	Expression<Func<TRecord, TKey>> keySelector1,
	Expression<Func<TRecord2, TKey>> keySelector2,
	Expression<Func<TRecord, TValue1>> valueSelector1,
	Expression<Func<TRecord2, TValue2>> valueSelector2,
	Expression<Func<TKey, IEnumerable<TValue1>, IEnumerable<TValue2>, IEnumerable<TOutput>>> reducer
)
where TKey : Object, IEquatable<TKey>
where TValue1 : Object, IEquatable<TValue1>
where TValue2 : Object, IEquatable<TValue2>
where TRecord2 : Object, IEquatable<TRecord2>
where TOutput : Object, IEquatable<TOutput>

Parameters

other

Type: Microsoft.Research.Naiad.Frameworks.DifferentialDataflowCollectionTRecord2, TTime
The other collection.

keySelector1

Type: System.Linq.ExpressionsExpressionFuncTRecord, TKey
The key selector applied to records in this collection.

keySelector2

Type: System.Linq.ExpressionsExpressionFuncTRecord2, TKey
The key selector applied to records in the other collection.

valueSelector1

Type: System.Linq.ExpressionsExpressionFuncTRecord, TValue1
Function that transforms a record in this collection to the intermediate value that is stored for each record.

valueSelector2

Type: System.Linq.ExpressionsExpressionFuncTRecord2, TValue2
Function that transforms a record in the other collection to the intermediate value that is stored for each record.

reducer

Type: System.Linq.ExpressionsExpressionFuncTKey, IEnumerableTValue1, IEnumerableTValue2, IEnumerableTOutput
Function that transforms two sequences of intermediate values from each input collection to a sequence of output records.

Type Parameters

TKey

The key type.

TValue1

The type of intermediate values stored for this collection.

TValue2

The type of intermediate values stored from the other collection.

TRecord2

The type of records in the other collection.

TOutput

The result type.

Return Value

Reference