Module lettuce.core

Package io.lettuce.core.protocol

Interface DemandAware.Sink

Enclosing interface:

DemandAware

public static interface DemandAware.Sink

A demand-aware DemandAware.Sink that accepts data. It can signal its DemandAware.Source demand/readiness to emit more data. Instances of implementing classes are required to be thread-safe as they are shared amongst multiple threads.

Method Summary

Modifier and Type	Method	Description
boolean	hasDemand()	Returns true if the DemandAware.Sink has demand or false if the source has no demand.
void	removeSource()	Removes the DemandAware.Source reference from this DemandAware.Sink.
void	setSource(DemandAware.Source source)	Sets the DemandAware.Source for a DemandAware.Sink.

Method Details

hasDemand

boolean hasDemand()

Returns true if the DemandAware.Sink has demand or false if the source has no demand. false means either the DemandAware.Sink has no demand in general because data is not needed or the current demand is saturated.

Returns:

true if the DemandAware.Sink demands data.

setSource

void setSource(DemandAware.Source source)

Sets the DemandAware.Source for a DemandAware.Sink. The DemandAware.Sink is notified by this DemandAware.Source if the source indicates new demand or the sink catches up so it's ready to receive more data.

Parameters:

source - the reference to the data DemandAware.Source, must not be null.

removeSource

void removeSource()

Removes the DemandAware.Source reference from this DemandAware.Sink. Any previously set DemandAware.Source will no longer be asked for data.