org.apache.flink.contrib.siddhi

Class SiddhiStream.ExecutionSiddhiStream

java.lang.Object

org.apache.flink.contrib.siddhi.SiddhiStream.ExecutionSiddhiStream

Enclosing class:

SiddhiStream

public static class SiddhiStream.ExecutionSiddhiStream
extends Object

Constructor Summary

Constructors

Constructor and Description
ExecutionSiddhiStream(org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<String,Object>> dataStream, String executionPlan, SiddhiCEP environment)

Method Summary

Modifier and Type	Method and Description
org.apache.flink.streaming.api.datastream.DataStream<Map<String,Object>>	returnAsMap(String outStreamId)
<T extends org.apache.flink.api.java.tuple.Tuple> org.apache.flink.streaming.api.datastream.DataStream<T>	returns(String outStreamId)
<T> org.apache.flink.streaming.api.datastream.DataStream<T>	returns(String outStreamId, Class<T> outType)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutionSiddhiStream

public ExecutionSiddhiStream(org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<String,Object>> dataStream,
                             String executionPlan,
                             SiddhiCEP environment)

Method Detail

returns

public <T extends org.apache.flink.api.java.tuple.Tuple> org.apache.flink.streaming.api.datastream.DataStream<T> returns(String outStreamId)

Type Parameters:

T - Type information should match with stream definition. During execution phase, it will automatically build type information based on stream definition.

Parameters:

outStreamId - The streamId to return as data stream.

Returns:

Return output stream as Tuple

See Also:

SiddhiTypeFactory

returnAsMap

public org.apache.flink.streaming.api.datastream.DataStream<Map<String,Object>> returnAsMap(String outStreamId)

Returns:

Return output stream as DataStream<Map<String,Object>>, out type is LinkedHashMap<String,Object> and guarantee field order as defined in siddhi execution plan

See Also:

LinkedHashMap

returns

public <T> org.apache.flink.streaming.api.datastream.DataStream<T> returns(String outStreamId,
                                                                           Class<T> outType)

Type Parameters:

T - Output type

Parameters:

outStreamId - OutStreamId

outType - Output type class

Returns:

Return output stream as POJO class.