/***********************************************************************************************************************
* Copyright (C) 2010-2014 by the Stratosphere project (http://stratosphere.eu)
*
* 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 eu.stratosphere.runtime.io.network.bufferprovider;
import eu.stratosphere.runtime.io.Buffer;
/**
* This interface must be implemented to receive an asynchronous callback from
* a {@link BufferProvider} as soon as a buffer has become available again.
*/
public interface BufferAvailabilityListener {
/**
* Returns a Buffer to the listener.
* <p/>
* Note: the listener has to adjust the size of the returned Buffer to the
* requested size manually via {@link Buffer#limitSize(int)}.
*/
void bufferAvailable(Buffer buffer) throws Exception;
}