org.apache.beam.runners.spark.util

Class CachedSideInputReader

java.lang.Object

org.apache.beam.runners.spark.util.CachedSideInputReader

All Implemented Interfaces:

org.apache.beam.runners.core.SideInputReader

public class CachedSideInputReader
extends java.lang.Object
implements org.apache.beam.runners.core.SideInputReader

SideInputReader that caches materialized views.

Method Summary

Modifier and Type	Method and Description
<T> boolean	contains(PCollectionView<T> view)
<T> T	get(PCollectionView<T> view, BoundedWindow window)
boolean	isEmpty()
static CachedSideInputReader	of(org.apache.beam.runners.core.SideInputReader delegate) Create a new cached SideInputReader.

Methods inherited from class java.lang.Object

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

Method Detail

of

public static CachedSideInputReader of(org.apache.beam.runners.core.SideInputReader delegate)

Create a new cached SideInputReader.

Parameters:

delegate - wrapped reader

Returns:

cached reader

get

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

Specified by:

get in interface org.apache.beam.runners.core.SideInputReader

contains

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

Specified by:

contains in interface org.apache.beam.runners.core.SideInputReader

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface org.apache.beam.runners.core.SideInputReader