mirror of https://github.com/apache/kafka.git
36 lines
1.3 KiB
C#
36 lines
1.3 KiB
C#
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/*
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* Copyright 2011 LinkedIn
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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namespace Kafka.Client.Producers.Partitioning
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{
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/// <summary>
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/// User-defined partitioner
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/// </summary>
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/// <typeparam name="TKey">The type of the key.</typeparam>
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public interface IPartitioner<TKey>
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where TKey : class
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{
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/// <summary>
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/// Uses the key to calculate a partition bucket id for routing
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/// the data to the appropriate broker partition
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/// </summary>
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/// <param name="key">The key.</param>
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/// <param name="numPartitions">The num partitions.</param>
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/// <returns>ID between 0 and numPartitions-1</returns>
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int Partition(TKey key, int numPartitions);
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}
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}
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