org.apache.flink.streaming.connectors.fs

类 StreamWriterBase<T>

java.lang.Object

org.apache.flink.streaming.connectors.fs.StreamWriterBase<T>

所有已实现的接口:

Serializable, Writer<T>

直接已知子类:

AvroKeyValueSinkWriter, SequenceFileWriter, StringWriter

public abstract class StreamWriterBase<T>
extends Object
implements Writer<T>

Base class for Writers that write to a FSDataOutputStream.

另请参阅:

序列化表格

构造器概要

构造器

限定符	构造器和说明
	StreamWriterBase()
protected	StreamWriterBase(StreamWriterBase<T> other)

方法概要

限定符和类型	方法和说明
void	close() Closes the Writer.
long	flush() Flushes out any internally held data, and returns the offset that the file must be truncated to at recovery.
long	getPos() Retrieves the current position, and thus size, of the output file.
protected org.apache.hadoop.fs.FSDataOutputStream	getStream() Returns the current output stream, if the stream is open.
boolean	isSyncOnFlush()
void	open(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path) Initializes the Writer for a newly opened bucket file.
void	setSyncOnFlush(boolean syncOnFlush) Controls whether to sync FSDataOutputStream on flush.

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.streaming.connectors.fs.Writer

duplicate, write

构造器详细资料

StreamWriterBase

public StreamWriterBase()

StreamWriterBase

protected StreamWriterBase(StreamWriterBase<T> other)

方法详细资料

setSyncOnFlush

public void setSyncOnFlush(boolean syncOnFlush)

Controls whether to sync FSDataOutputStream on flush.

getStream

protected org.apache.hadoop.fs.FSDataOutputStream getStream()

Returns the current output stream, if the stream is open.

open

public void open(org.apache.hadoop.fs.FileSystem fs,
                 org.apache.hadoop.fs.Path path)
          throws IOException

从接口复制的说明: Writer

Initializes the Writer for a newly opened bucket file. Any internal per-bucket initialization should be performed here.

指定者:

open 在接口中 Writer<T>

参数:

fs - The FileSystem containing the newly opened file.

path - The Path of the newly opened file.

抛出:

IOException

flush

public long flush()
           throws IOException

从接口复制的说明: Writer

Flushes out any internally held data, and returns the offset that the file must be truncated to at recovery.

指定者:

flush 在接口中 Writer<T>

抛出:

IOException

getPos

public long getPos()
            throws IOException

从接口复制的说明: Writer

Retrieves the current position, and thus size, of the output file.

指定者:

getPos 在接口中 Writer<T>

抛出:

IOException

close

public void close()
           throws IOException

从接口复制的说明: Writer

Closes the Writer. If the writer is already closed, no action will be taken. The call should close all state related to the current output file, including the output stream opened in open.

指定者:

close 在接口中 Writer<T>

抛出:

IOException

isSyncOnFlush

public boolean isSyncOnFlush()