/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hadoop.fs;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface CanSetDropBehind {
/**
* Configure whether the stream should drop the cache.
*
* @param dropCache Whether to drop the cache. null means to use the
* default value.
* @throws IOException If there was an error changing the dropBehind
* setting.
* UnsupportedOperationException If this stream doesn't support
* setting the drop-behind.
*/
public void setDropBehind(Boolean dropCache)
throws IOException, UnsupportedOperationException;
}