/***********************************************************************************************************************
* Copyright (C) 2010-2013 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.nephele.instance;
import java.util.List;
import eu.stratosphere.nephele.jobgraph.JobID;
/**
* Classes implementing the {@link InstanceListener} interface can be notified about
* the availability or the unexpected failure of an instance.
*
*/
public interface InstanceListener {
/**
* Called if one or more requested resources have become available.
*
* @param jobID
* the ID of the job the initial request has been triggered for
* @param allocatedResources
* the resources which have been allocated as a response to the initial request
*/
void resourcesAllocated(JobID jobID, List<AllocatedResource> allocatedResources);
/**
* Called if one or more allocated resources assigned to at least one job have died unexpectedly.
*
* @param jobID
* the ID of the job the instance is used for
* @param allocatedResource
* the allocated resources which are affected by the instance death
*/
void allocatedResourcesDied(JobID jobID, List<AllocatedResource> allocatedResource);
}