org.apache.flink.runtime.state.memory

Class MemoryStateBackend.MemoryCheckpointOutputStream

java.lang.Object

java.io.OutputStream

org.apache.flink.runtime.state.AbstractStateBackend.CheckpointStateOutputStream

org.apache.flink.runtime.state.memory.MemoryStateBackend.MemoryCheckpointOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

Enclosing class:

MemoryStateBackend

public static final class MemoryStateBackend.MemoryCheckpointOutputStream
extends AbstractStateBackend.CheckpointStateOutputStream

A CheckpointStateOutputStream that writes into a byte array.

Constructor Summary

Constructors

Constructor and Description
MemoryCheckpointOutputStream(int maxSize)

Method Summary

Modifier and Type	Method and Description
void	close()
byte[]	closeAndGetBytes() Closes the stream and returns the byte array containing the stream's data.
StreamStateHandle	closeAndGetHandle() Closes the stream and gets a state handle that can create an input stream producing the data written to this stream.
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryCheckpointOutputStream

public MemoryCheckpointOutputStream(int maxSize)

Method Detail

write

public void write(int b)

Specified by:

write in class OutputStream

write

public void write(byte[] b,
                  int off,
                  int len)

Overrides:

write in class OutputStream

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

closeAndGetHandle

public StreamStateHandle closeAndGetHandle()
                                    throws IOException

Description copied from class: AbstractStateBackend.CheckpointStateOutputStream

Closes the stream and gets a state handle that can create an input stream producing the data written to this stream.

Specified by:

closeAndGetHandle in class AbstractStateBackend.CheckpointStateOutputStream

Returns:

A state handle that can create an input stream producing the data written to this stream.

Throws:

IOException - Thrown, if the stream cannot be closed.

closeAndGetBytes

public byte[] closeAndGetBytes()
                        throws IOException

Closes the stream and returns the byte array containing the stream's data.

Returns:

The byte array containing the stream's data.

Throws:

IOException - Thrown if the size of the data exceeds the maximal