org.apache.hadoop.fs

Interface CanSetDropBehind

All Known Implementing Classes:

FSDataInputStream, FSDataOutputStream, HdfsDataInputStream, HdfsDataOutputStream

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public interface CanSetDropBehind

Method Summary

Modifier and Type	Method and Description
void	setDropBehind(Boolean dropCache) Configure whether the stream should drop the cache.

Method Detail

setDropBehind

void setDropBehind(Boolean dropCache)
            throws IOException,
                   UnsupportedOperationException

Configure whether the stream should drop the cache.

Parameters:

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.

UnsupportedOperationException