com.aliyun.odps.io

Class SinkOutputStream

java.lang.Object

java.io.OutputStream

com.aliyun.odps.io.SinkOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public abstract class SinkOutputStream
extends OutputStream

An extension of Java OutputStream, used to interface with the output file byte stream.

Constructor Summary

Constructors

Constructor and Description
SinkOutputStream()

Method Summary

Modifier and Type	Method and Description
void	close() output stream shall be closed by the system AFTER Outputer::close() calling close() on SinkOutputStream is a no-op
void	flush() Note that system will be performing memory control in the background, and will flush data only when it is deemed necessary, therefore the flush here would be no-op.
abstract long	getBytesWritten() Get total number of bytes written by current output stream so far
abstract void	write(byte[] b) Writes b.length bytes from the specified byte array to this output stream
abstract void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
abstract void	write(int b) Writes a single byte to the output stream on each invocation, which is very INEFFICIENT, it is not recommend to use this unless it is desirable to write one single byte on each call.

Methods inherited from class java.lang.Object

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

Constructor Detail

SinkOutputStream

public SinkOutputStream()

Method Detail

close

public final void close()

output stream shall be closed by the system AFTER Outputer::close() calling close() on SinkOutputStream is a no-op

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

flush

public final void flush()

Note that system will be performing memory control in the background, and will flush data only when it is deemed necessary, therefore the flush here would be no-op.

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

write

public abstract void write(byte[] b)
                    throws IOException

Writes b.length bytes from the specified byte array to this output stream

Overrides:

write in class OutputStream

Parameters:

b - the data.

Throws:

IOException

write

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

Writes len bytes from the specified byte array starting at offset off to this output stream.

Overrides:

write in class OutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

IOException

write

public abstract void write(int b)
                    throws IOException

Writes a single byte to the output stream on each invocation, which is very INEFFICIENT, it is not recommend to use this unless it is desirable to write one single byte on each call. Use write(byte[]) or write(byte[], int, int) instead.

Specified by:

write in class OutputStream

Throws:

IOException

getBytesWritten

public abstract long getBytesWritten()

Get total number of bytes written by current output stream so far

Returns:

number of bytes written