Dryad/LinqToDryad/IDecomposable.cs

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/*
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.
*/
//
// <20> Microsoft Corporation. All rights reserved.
//
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Microsoft.Research.DryadLinq
{
public interface IDecomposable<TSource, TAccumulate, TResult>
{
void Initialize(object state);
TAccumulate Seed(TSource val);
TAccumulate Accumulate(TAccumulate acc, TSource val);
TAccumulate RecursiveAccumulate(TAccumulate acc, TAccumulate val);
TResult FinalReduce(TAccumulate val);
}
public static class GenericDecomposable<TDecomposable, TSource, TAccumulate, TResult>
where TDecomposable : IDecomposable<TSource, TAccumulate, TResult>, new()
{
private static TDecomposable d = new TDecomposable();
public static void Initialize(object state)
{
d.Initialize(state);
}
public static TAccumulate Seed(TSource val)
{
return d.Seed(val);
}
public static TAccumulate Accumulate(TAccumulate acc, TSource val)
{
return d.Accumulate(acc, val);
}
public static TAccumulate RecursiveAccumulate(TAccumulate acc, TAccumulate val)
{
return d.RecursiveAccumulate(acc, val);
}
public static TResult FinalReduce(TAccumulate val)
{
return d.FinalReduce(val);
}
}
}