Dryad/LinqToDryad/IAssociative.cs

50 lines
1.4 KiB
C#

/*
Copyright (c) Microsoft Corporation
All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License
at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions and
limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Microsoft.Research.DryadLinq
{
public interface IAssociative<TAccumulate>
{
TAccumulate Seed();
TAccumulate RecursiveAccumulate(TAccumulate acc, TAccumulate val);
}
public static class GenericAssociative<TAssoc, TAccumulate>
where TAssoc : IAssociative<TAccumulate>, new()
{
private static TAssoc a = new TAssoc();
public static TAccumulate Seed()
{
return a.Seed();
}
public static TAccumulate RecursiveAccumulate(TAccumulate acc, TAccumulate val)
{
return a.RecursiveAccumulate(acc, val);
}
}
}