io.siddhi.extension.execution.unique

Class UniqueFirstWindowProcessor

java.lang.Object

io.siddhi.core.query.processor.stream.AbstractStreamProcessor<S>

io.siddhi.core.query.processor.stream.window.WindowProcessor<io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState>

io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor

All Implemented Interfaces:

io.siddhi.core.query.processor.Processor, io.siddhi.core.query.processor.stream.window.FindableProcessor, io.siddhi.core.util.extension.holder.ExternalReferencedHolder

public class UniqueFirstWindowProcessor
extends io.siddhi.core.query.processor.stream.window.WindowProcessor<io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState>
implements io.siddhi.core.query.processor.stream.window.FindableProcessor

class representing unique first window processor implementation.

Field Summary

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

attributeExpressionExecutors, attributeExpressionLength, complexEventPopulater, inputDefinition, metaStreamEvent, nextProcessor, siddhiQueryContext, stateHolder, streamEventClonerHolder

Constructor Summary

Constructors

Constructor and Description
UniqueFirstWindowProcessor()

Method Summary

Modifier and Type	Method and Description
io.siddhi.core.util.collection.operator.CompiledCondition	compileCondition(io.siddhi.query.api.expression.Expression expression, io.siddhi.core.util.collection.operator.MatchingMetaInfoHolder matchingMetaInfoHolder, List<io.siddhi.core.executor.VariableExpressionExecutor> variableExpressionExecutors, Map<String,io.siddhi.core.table.Table> eventTableMap, io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext)
io.siddhi.core.event.stream.StreamEvent	find(io.siddhi.core.event.state.StateEvent matchingEvent, io.siddhi.core.util.collection.operator.CompiledCondition compiledCondition)
io.siddhi.core.query.processor.ProcessingMode	getProcessingMode()
protected io.siddhi.core.util.snapshot.state.StateFactory<io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState>	init(io.siddhi.core.event.stream.MetaStreamEvent metaStreamEvent, io.siddhi.query.api.definition.AbstractDefinition inputDefinition, io.siddhi.core.executor.ExpressionExecutor[] attributeExpressionExecutors, io.siddhi.core.util.config.ConfigReader configReader, io.siddhi.core.event.stream.holder.StreamEventClonerHolder streamEventClonerHolder, boolean outputExpectsExpiredEvents, boolean findToBeExecuted, io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext)
protected void	processEventChunk(io.siddhi.core.event.ComplexEventChunk<io.siddhi.core.event.stream.StreamEvent> streamEventChunk, io.siddhi.core.query.processor.Processor nextProcessor, io.siddhi.core.event.stream.StreamEventCloner streamEventCloner, io.siddhi.core.event.stream.populater.ComplexEventPopulater complexEventPopulater, io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState state)
void	start()
void	stop()

Methods inherited from class io.siddhi.core.query.processor.stream.window.WindowProcessor

getReturnAttributes

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

constructStreamEventPopulater, getNextProcessor, initProcessor, process, setNextProcessor, setStreamEventCloner, setToLast

Methods inherited from class java.lang.Object

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

Constructor Detail

UniqueFirstWindowProcessor

public UniqueFirstWindowProcessor()

Method Detail

init

protected io.siddhi.core.util.snapshot.state.StateFactory<io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState> init(io.siddhi.core.event.stream.MetaStreamEvent metaStreamEvent,
                                                                                                                                            io.siddhi.query.api.definition.AbstractDefinition inputDefinition,
                                                                                                                                            io.siddhi.core.executor.ExpressionExecutor[] attributeExpressionExecutors,
                                                                                                                                            io.siddhi.core.util.config.ConfigReader configReader,
                                                                                                                                            io.siddhi.core.event.stream.holder.StreamEventClonerHolder streamEventClonerHolder,
                                                                                                                                            boolean outputExpectsExpiredEvents,
                                                                                                                                            boolean findToBeExecuted,
                                                                                                                                            io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext)

Specified by:

init in class io.siddhi.core.query.processor.stream.AbstractStreamProcessor<io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState>

processEventChunk

protected void processEventChunk(io.siddhi.core.event.ComplexEventChunk<io.siddhi.core.event.stream.StreamEvent> streamEventChunk,
                                 io.siddhi.core.query.processor.Processor nextProcessor,
                                 io.siddhi.core.event.stream.StreamEventCloner streamEventCloner,
                                 io.siddhi.core.event.stream.populater.ComplexEventPopulater complexEventPopulater,
                                 io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState state)

Specified by:

processEventChunk in class io.siddhi.core.query.processor.stream.AbstractStreamProcessor<io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState>

getProcessingMode

public io.siddhi.core.query.processor.ProcessingMode getProcessingMode()

Specified by:

getProcessingMode in class io.siddhi.core.query.processor.stream.AbstractStreamProcessor<io.siddhi.extension.execution.unique.UniqueFirstWindowProcessor.WindowState>

start

public void start()

Specified by:

start in interface io.siddhi.core.util.extension.holder.ExternalReferencedHolder

stop

public void stop()

Specified by:

stop in interface io.siddhi.core.util.extension.holder.ExternalReferencedHolder

find

public io.siddhi.core.event.stream.StreamEvent find(io.siddhi.core.event.state.StateEvent matchingEvent,
                                                    io.siddhi.core.util.collection.operator.CompiledCondition compiledCondition)

Specified by:

find in interface io.siddhi.core.query.processor.stream.window.FindableProcessor

compileCondition

public io.siddhi.core.util.collection.operator.CompiledCondition compileCondition(io.siddhi.query.api.expression.Expression expression,
                                                                                  io.siddhi.core.util.collection.operator.MatchingMetaInfoHolder matchingMetaInfoHolder,
                                                                                  List<io.siddhi.core.executor.VariableExpressionExecutor> variableExpressionExecutors,
                                                                                  Map<String,io.siddhi.core.table.Table> eventTableMap,
                                                                                  io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext)

Specified by:

compileCondition in interface io.siddhi.core.query.processor.stream.window.FindableProcessor