org.apache.beam.runners.fnexecution.state

Interface StateRequestHandlers.MultimapSideInputHandler<K,V,W extends BoundedWindow>

All Superinterfaces:

StateRequestHandlers.SideInputHandler

Enclosing class:

StateRequestHandlers

@ThreadSafe
public static interface StateRequestHandlers.MultimapSideInputHandler<K,V,W extends BoundedWindow>
extends StateRequestHandlers.SideInputHandler

A handler for multimap side inputs.

Note that this handler is expected to be thread safe as it will be invoked concurrently.

Method Summary

Modifier and Type	Method and Description
java.lang.Iterable<V>	get(K key, W window) Returns an Iterable of values representing the side input for the given key and window.
java.lang.Iterable<K>	get(W window) Returns an Iterable of keys representing the side input for the given window.
Coder<K>	keyCoder() Returns the Coder to use for the elements of the resulting keys iterable.
Coder<V>	valueCoder() Returns the Coder to use for the elements of the resulting values iterable.

Method Detail

get

java.lang.Iterable<K> get(W window)

Returns an Iterable of keys representing the side input for the given window.

TODO: Add support for side input chunking and caching if a Reiterable is returned.

get

java.lang.Iterable<V> get(K key,
                          W window)

Returns an Iterable of values representing the side input for the given key and window.

TODO: Add support for side input chunking and caching if a Reiterable is returned.

keyCoder

Coder<K> keyCoder()

Returns the Coder to use for the elements of the resulting keys iterable.

valueCoder

Coder<V> valueCoder()

Returns the Coder to use for the elements of the resulting values iterable.