org.apache.flink.streaming.connectors.fs

类 StringWriter<T>

java.lang.Object

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

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

类型参数:

T - The type of the elements that are being written by the sink.

所有已实现的接口:

Serializable, Writer<T>

public class StringWriter<T>
extends StreamWriterBase<T>

A Writer that uses toString() on the input elements and writes them to the output bucket file separated by newline.

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
	StringWriter() Creates a new StringWriter that uses "UTF-8" charset to convert strings to bytes.
	StringWriter(String charsetName) Creates a new StringWriter that uses the given charset to convert strings to bytes.
protected	StringWriter(StringWriter<T> other)

方法概要

限定符和类型	方法和说明
StringWriter<T>	duplicate() Duplicates the Writer.
void	open(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path) Initializes the Writer for a newly opened bucket file.
void	write(T element) Writes one element to the bucket file.

从类继承的方法 org.apache.flink.streaming.connectors.fs.StreamWriterBase

close, flush, getPos, getStream, isSyncOnFlush, setSyncOnFlush

从类继承的方法 java.lang.Object

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

构造器详细资料

StringWriter

public StringWriter()

Creates a new StringWriter that uses "UTF-8" charset to convert strings to bytes.

StringWriter

public StringWriter(String charsetName)

Creates a new StringWriter that uses the given charset to convert strings to bytes.

参数:

charsetName - Name of the charset to be used, must be valid input for Charset.forName(charsetName)

StringWriter

protected StringWriter(StringWriter<T> other)

方法详细资料

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>

覆盖:

open 在类中 StreamWriterBase<T>

参数:

fs - The FileSystem containing the newly opened file.

path - The Path of the newly opened file.

抛出:

IOException

write

public void write(T element)
           throws IOException

从接口复制的说明: Writer

Writes one element to the bucket file.

抛出:

IOException

duplicate

public StringWriter<T> duplicate()

从接口复制的说明: Writer

Duplicates the Writer. This is used to get one Writer for each parallel instance of the sink.