类的使用
io.ray.streaming.api.stream.DataStream

使用DataStream的程序包

程序包	说明
io.ray.streaming.api.stream
io.ray.streaming.python.stream

io.ray.streaming.api.stream中DataStream的使用

io.ray.streaming.api.stream中DataStream的子类

限定符和类型	类和说明
class	DataStreamSource<T> Represents a source of the DataStream.
class	JoinStream<L,R,O> Represents a DataStream of two joined DataStream.
class	KeyDataStream<K,T> Represents a DataStream returned by a key-by operation.
class	UnionStream<T> Represents a union DataStream.

返回DataStream的io.ray.streaming.api.stream中的方法

限定符和类型	方法和说明
<A,O> DataStream<O>	KeyDataStream.aggregate(AggregateFunction<T,A,O> aggregateFunction) Apply an aggregate Function to this stream.
DataStream<T>	DataStream.broadcast() Apply broadcast to this stream.
DataStream<T>	DataStream.filter(FilterFunction<T> filterFunction)
<R> DataStream<R>	DataStream.flatMap(FlatMapFunction<T,R> flatMapFunction) Apply a flat-map function to this stream.
DataStream<R>	JoinStream.getRightStream()
<R> DataStream<R>	DataStream.map(MapFunction<T,R> mapFunction) Apply a map function to this stream.
DataStream<T>	DataStream.partitionBy(Partition<T> partition) Apply a partition to this stream.
<R> DataStream<R>	DataStream.process()
DataStream<T>	KeyDataStream.reduce(ReduceFunction reduceFunction) Apply a reduce function to this stream.
DataStream<T>	DataStream.union(DataStream<T> stream, DataStream<T>... others) Apply union transformations to this stream by merging DataStream outputs of the same type with each other.
DataStream<T>	DataStream.union(List<DataStream<T>> streams) Apply union transformations to this stream by merging DataStream outputs of the same type with each other.

返回变量类型为DataStream的类型的io.ray.streaming.api.stream中的方法

限定符和类型	方法和说明
List<DataStream<T>>	UnionStream.getUnionStreams()

参数类型为DataStream的io.ray.streaming.api.stream中的方法

限定符和类型	方法和说明
<O,R> JoinStream<T,O,R>	DataStream.join(DataStream<O> other) Apply a join transformation to this stream, with another stream.
DataStream<T>	DataStream.union(DataStream<T> stream, DataStream<T>... others) Apply union transformations to this stream by merging DataStream outputs of the same type with each other.
DataStream<T>	DataStream.union(DataStream<T> stream, DataStream<T>... others) Apply union transformations to this stream by merging DataStream outputs of the same type with each other.

类型变量类型为DataStream的io.ray.streaming.api.stream中的方法参数

限定符和类型	方法和说明
DataStream<T>	DataStream.union(List<DataStream<T>> streams) Apply union transformations to this stream by merging DataStream outputs of the same type with each other.

参数类型为DataStream的io.ray.streaming.api.stream中的构造器

构造器和说明
DataStream(DataStream<R> input, StreamOperator streamOperator)
DataStream(DataStream<R> input, StreamOperator streamOperator, Partition<T> partition)
DataStreamSink(DataStream input, SinkOperator sinkOperator)
JoinStream(DataStream<L> leftStream, DataStream<R> rightStream)
JoinStream(DataStream<L> leftStream, DataStream<R> rightStream)
KeyDataStream(DataStream<T> input, StreamOperator streamOperator)
UnionStream(DataStream<T> input, List<DataStream<T>> streams)

类型变量类型为DataStream的io.ray.streaming.api.stream中的构造器参数

构造器和说明
UnionStream(DataStream<T> input, List<DataStream<T>> streams)

io.ray.streaming.python.stream中DataStream的使用

返回DataStream的io.ray.streaming.python.stream中的方法

限定符和类型	方法和说明
DataStream<Object>	PythonDataStream.asJavaStream() Convert this stream as a java stream.

参数类型为DataStream的io.ray.streaming.python.stream中的构造器

构造器和说明
PythonDataStream(DataStream referencedStream) Create a python stream that reference passed java stream.
PythonKeyDataStream(DataStream referencedStream) Create a python stream that reference passed python stream.