io.datakernel.stream.processor.Sharder Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of async-streams Show documentation

Composable asynchronous/reactive streams with powerful data processing capabilities.

The newest version!

/*
 * Copyright (C) 2015 SoftIndex LLC.
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.datakernel.stream.processor;

/**
 * Shares objects to shards with specified algorithm
 *
 * @param  type of object for sharding
 */
public interface Sharder {
	/**
	 * Returns shard key (index of partition to which this object should be sent)
	 *
	 * @param object object for sharding
	 */
	int shard(K object);
}