com.google.cloud.dataflow.sdk.io

Class Write

java.lang.Object

com.google.cloud.dataflow.sdk.io.Write

Direct Known Subclasses:

Write

@Experimental(value=SOURCE_SINK)
public class Write
extends Object

A PTransform that writes to a Sink. A write begins with a sequential global initialization of a sink, followed by a parallel write, and ends with a sequential finalization of the write. The output of a write is PDone. In the case of an empty PCollection, only the global initialization and finalization will be performed.

Currently, only batch workflows can contain Write transforms.

Example usage:

p.apply(Write.to(new MySink(...)));

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Write.Bound<T> A PTransform that writes to a Sink.

Constructor Summary

Constructors

Constructor and Description
Write()

Method Summary

Modifier and Type	Method and Description
static <T> Write.Bound<T>	to(Sink<T> sink) Creates a Write transform that writes to the given Sink.

Methods inherited from class java.lang.Object

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

Constructor Detail

Write

public Write()

Method Detail

to

public static <T> Write.Bound<T> to(Sink<T> sink)

Creates a Write transform that writes to the given Sink.