/*******************************************************************************
* Copyright 2011 Netflix
*
* 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 com.netflix.astyanax.connectionpool;
import com.netflix.astyanax.connectionpool.exceptions.ConnectionException;
import com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool;
/**
* Interface that encapsulates functionality to execute an {@link Operation} with a failover strategy as well.
*
* This class is used when attempting to find a healthy {@link Connection} from a set of {@link HostConnectionPool}(s) for a set of {@link Host}(s)
* This can be used by an extending class of the {@link AbstractHostPartitionConnectionPool} which reliably tries to execute an {@link Operation}
* within the {@link AbstractHostPartitionConnectionPool#executeWithFailover(Operation, com.netflix.astyanax.retry.RetryPolicy)} method for the
* given host partitions.
*
* @see {@link AbstractHostPartitionConnectionPool} for references to this class.
*
* @author elandau
*
* @param <CL>
* @param <R>
*/
public interface ExecuteWithFailover<CL, R> {
OperationResult<R> tryOperation(Operation<CL, R> operation) throws ConnectionException;
}