io.ray.streaming.api.stream

Class Stream<S extends Stream<S,T>,T>

java.lang.Object

io.ray.streaming.api.stream.Stream<S,T>

Type Parameters:

S - Type of stream class

T - Type of the data in the stream.

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DataStream, PythonDataStream, StreamSink

public abstract class Stream<S extends Stream<S,T>,T>
extends Object
implements Serializable

Abstract base class of all stream types.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Stream(Stream originalStream) Create a proxy stream of original stream.
	Stream(StreamingContext streamingContext, StreamOperator streamOperator)
	Stream(StreamingContext streamingContext, StreamOperator streamOperator, Partition<T> partition)
protected	Stream(StreamingContext streamingContext, Stream inputStream, StreamOperator streamOperator, Partition<T> partition)
	Stream(Stream inputStream, StreamOperator streamOperator)
	Stream(Stream inputStream, StreamOperator streamOperator, Partition<T> partition)

Method Summary

Modifier and Type	Method and Description
S	disableChain() Disable chain for this stream
S	forward() Set the partition function of this Stream so that output elements are forwarded to next operator locally.
Map<String,String>	getConfig()
int	getId()
Stream	getInputStream()
abstract Language	getLanguage()
StreamOperator	getOperator()
Stream	getOriginalStream()
int	getParallelism()
Partition<T>	getPartition()
StreamingContext	getStreamingContext()
boolean	isProxyStream()
S	setParallelism(int parallelism)
protected S	setPartition(Partition<T> partition)
S	withChainStrategy(ChainStrategy chainStrategy) Set chain strategy for this stream
S	withConfig(Map<String,String> config)
S	withConfig(String key, String value)

Methods inherited from class java.lang.Object

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

Constructor Detail

Stream

public Stream(StreamingContext streamingContext,
              StreamOperator streamOperator)

Stream

public Stream(StreamingContext streamingContext,
              StreamOperator streamOperator,
              Partition<T> partition)

Stream

public Stream(Stream inputStream,
              StreamOperator streamOperator)

Stream

public Stream(Stream inputStream,
              StreamOperator streamOperator,
              Partition<T> partition)

Stream

protected Stream(StreamingContext streamingContext,
                 Stream inputStream,
                 StreamOperator streamOperator,
                 Partition<T> partition)

Stream

protected Stream(Stream originalStream)

Create a proxy stream of original stream. Changes in new stream will be reflected in original stream and vice versa

Method Detail

getId

public int getId()

getStreamingContext

public StreamingContext getStreamingContext()

getInputStream

public Stream getInputStream()

getOperator

public StreamOperator getOperator()

getParallelism

public int getParallelism()

setParallelism

public S setParallelism(int parallelism)

getPartition

public Partition<T> getPartition()

setPartition

protected S setPartition(Partition<T> partition)

withConfig

public S withConfig(Map<String,String> config)

withConfig

public S withConfig(String key,
                    String value)

getConfig

public Map<String,String> getConfig()

isProxyStream

public boolean isProxyStream()

getOriginalStream

public Stream getOriginalStream()

withChainStrategy

public S withChainStrategy(ChainStrategy chainStrategy)

Set chain strategy for this stream

disableChain

public S disableChain()

Disable chain for this stream

forward

public S forward()

Set the partition function of this Stream so that output elements are forwarded to next operator locally.

getLanguage

public abstract Language getLanguage()