org.apache.beam.sdk.state

Interface ValueState<T>

Type Parameters:

T - The type of value being stored.

All Superinterfaces:

ReadableState<T>, State

@Experimental(value=STATE)
public interface ValueState<T>
extends ReadableState<T>, State

A ReadableState cell containing a single value.

Method Summary

Modifier and Type	Method and Description
ValueState<T>	readLater() Indicate that the value will be read later.
void	write(T input) Set the value.

Methods inherited from interface org.apache.beam.sdk.state.ReadableState

read

Methods inherited from interface org.apache.beam.sdk.state.State

clear

Method Detail

write

void write(T input)

Set the value.

readLater

ValueState<T> readLater()

Description copied from interface: ReadableState

Indicate that the value will be read later.

This allows an implementation to start an asynchronous prefetch or to include this state in the next batch of reads.

Specified by:

readLater in interface ReadableState<T>

Returns:

this for convenient chaining