io.siddhi.core.query.processor.stream

Class StreamProcessor

java.lang.Object

io.siddhi.core.query.processor.stream.AbstractStreamProcessor

io.siddhi.core.query.processor.stream.StreamProcessor

All Implemented Interfaces:

Processor, EternalReferencedHolder, Snapshotable

Direct Known Subclasses:

LogStreamProcessor

public abstract class StreamProcessor
extends AbstractStreamProcessor

For Siddhi extensions, extend this class to use the functionality of AbstractStreamProcessor. This class processes only StreamEvents. Use StreamFunctionProcessor to process StateEvents.

Field Summary

Fields inherited from class io.siddhi.core.query.processor.stream.AbstractStreamProcessor

additionalAttributes, attributeExpressionExecutors, attributeExpressionLength, complexEventPopulater, elementId, inputDefinition, metaStreamEvent, nextProcessor, siddhiQueryContext, streamEventCloner, streamEventClonerHolder

Constructor Summary

Constructors

Constructor and Description
StreamProcessor()

Method Summary

Modifier and Type	Method and Description
protected abstract void	process(ComplexEventChunk<StreamEvent> streamEventChunk, Processor nextProcessor, StreamEventCloner streamEventCloner, ComplexEventPopulater complexEventPopulater) The main processing method that will be called upon event arrival
protected void	processEventChunk(ComplexEventChunk<StreamEvent> streamEventChunk, Processor nextProcessor, StreamEventCloner streamEventCloner, ComplexEventPopulater complexEventPopulater) The main processing method that will be called upon event arrival

Methods inherited from class io.siddhi.core.query.processor.stream.AbstractStreamProcessor

clean, cloneProcessor, constructStreamEventPopulater, getElementId, getNextProcessor, getProcessingMode, init, initProcessor, process, setNextProcessor, setStreamEventCloner, setToLast

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.siddhi.core.util.extension.holder.EternalReferencedHolder

start, stop

Methods inherited from interface io.siddhi.core.util.snapshot.Snapshotable

currentState, restoreState

Constructor Detail

StreamProcessor

public StreamProcessor()

Method Detail

processEventChunk

protected void processEventChunk(ComplexEventChunk<StreamEvent> streamEventChunk,
                                 Processor nextProcessor,
                                 StreamEventCloner streamEventCloner,
                                 ComplexEventPopulater complexEventPopulater)

Description copied from class: AbstractStreamProcessor

The main processing method that will be called upon event arrival

Specified by:

processEventChunk in class AbstractStreamProcessor

Parameters:

streamEventChunk - the event chunk that need to be processed

nextProcessor - the next processor to which the success events need to be passed

streamEventCloner - helps to clone the incoming event for local storage or modification

complexEventPopulater - helps to populate the events with the resultant attributes

process

protected abstract void process(ComplexEventChunk<StreamEvent> streamEventChunk,
                                Processor nextProcessor,
                                StreamEventCloner streamEventCloner,
                                ComplexEventPopulater complexEventPopulater)

The main processing method that will be called upon event arrival

Parameters:

streamEventChunk - the event chunk that need to be processed

nextProcessor - the next processor to which the success events need to be passed

streamEventCloner - helps to clone the incoming event for local storage or modification

complexEventPopulater - helps to populate the events with the resultant attributes