org.apache.hadoop.hbase.io

Class DelegatingInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

org.apache.hadoop.hbase.io.DelegatingInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

BoundedDelegatingInputStream

@InterfaceAudience.Private
public class DelegatingInputStream
extends FilterInputStream

An input stream that delegates all operations to another input stream. The delegate can be switched out for another at any time but to minimize the possibility of violating the InputStream contract it would be best to replace the delegate only once it has been fully consumed.

For example, a ByteArrayInputStream, which is implicitly bounded by the size of the underlying byte array can be converted into an unbounded stream fed by multiple instances of ByteArrayInputStream, switched out one for the other in sequence.

Although multithreaded access is allowed, users of this class will want to take care to order operations on this stream and the swap out of one delegate for another in a way that provides a valid view of stream contents.

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
DelegatingInputStream(InputStream in)

Method Summary

Modifier and Type	Method and Description
InputStream	getDelegate()
void	setDelegate(InputStream in)

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, read, read, reset, skip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DelegatingInputStream

public DelegatingInputStream(InputStream in)

Method Detail

getDelegate

public InputStream getDelegate()

setDelegate

public void setDelegate(InputStream in)