cern.streaming.pool.core.service.streamid

Class CombineWithLatestStreamId<T,D,R>

java.lang.Object

cern.streaming.pool.core.service.streamid.CombineWithLatestStreamId<T,D,R>

Type Parameters:

T - Type of the stream which will trigger the emitting of a new element

D - Type of the original data stream

R - Type of the returned value (= type of the resulting stream)

All Implemented Interfaces:

StreamId<R>

public class CombineWithLatestStreamId<T,D,R>
extends java.lang.Object
implements StreamId<R>

Given a data stream and a stream of triggering events, the resulting stream emits as soon as the trigger stream emits. The emitted value is determined by the comining function, and can thus be computed from the emitted value of the triggered stream and the latest emitted item of the data stream. stream at the moment of each triggering event

See Also:

CombineWithLatestStreamFactory

Method Summary

Modifier and Type	Method and Description
static <T,D,R> CombineWithLatestStreamId<T,D,R>	combine(StreamId<T> trigger, StreamId<D> data, java.util.function.BiFunction<T,D,R> combiner)
java.util.function.BiFunction<T,D,R>	combiner()
static <T,D> CombineWithLatestStreamId<T,D,D>	dataPropagated(StreamId<T> trigger, StreamId<D> data)
StreamId<D>	dataStream()
boolean	equals(java.lang.Object obj)
int	hashCode()
java.lang.String	toString()
StreamId<T>	triggerStream()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

dataPropagated

public static <T,D> CombineWithLatestStreamId<T,D,D> dataPropagated(StreamId<T> trigger,
                                                                    StreamId<D> data)

combine

public static <T,D,R> CombineWithLatestStreamId<T,D,R> combine(StreamId<T> trigger,
                                                               StreamId<D> data,
                                                               java.util.function.BiFunction<T,D,R> combiner)

dataStream

public StreamId<D> dataStream()

triggerStream

public StreamId<T> triggerStream()

combiner

public java.util.function.BiFunction<T,D,R> combiner()

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object