com.google.cloud.dataflow.sdk.util

Class DirectSideInputReader

java.lang.Object

com.google.cloud.dataflow.sdk.util.DirectSideInputReader

All Implemented Interfaces:

SideInputReader

public class DirectSideInputReader
extends Object
implements SideInputReader

Basic side input reader wrapping a PTuple of side input iterables. Encapsulates conversion according to the PCollectionView and projection to a particular window.

Method Summary

Modifier and Type	Method and Description
<T> boolean	contains(PCollectionView<T> view) Returns true if the given PCollectionView is valid for this reader.
<T> T	get(PCollectionView<T> view, BoundedWindow window) Returns the value of the given PCollectionView for the given BoundedWindow.
boolean	isEmpty() Returns true if there are no side inputs in this reader.
static DirectSideInputReader	of(PTuple sideInputValues)

Methods inherited from class java.lang.Object

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

Method Detail

of

public static DirectSideInputReader of(PTuple sideInputValues)

contains

public <T> boolean contains(PCollectionView<T> view)

Description copied from interface: SideInputReader

Returns true if the given PCollectionView is valid for this reader.

Specified by:

contains in interface SideInputReader

isEmpty

public boolean isEmpty()

Description copied from interface: SideInputReader

Returns true if there are no side inputs in this reader.

Specified by:

isEmpty in interface SideInputReader

get

public <T> T get(PCollectionView<T> view,
                 BoundedWindow window)

Description copied from interface: SideInputReader

Returns the value of the given PCollectionView for the given BoundedWindow.

It is valid for a side input to be null. It is not valid for this to return null for any other reason.

Specified by:

get in interface SideInputReader