public class TimeWindowProcessor extends SlidingFindableWindowProcessor<io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState> implements SchedulingProcessor
WindowProcessor
which represent a Window operating based time.attributeExpressionExecutors, attributeExpressionLength, complexEventPopulater, inputDefinition, metaStreamEvent, nextProcessor, stateHolder, streamEventClonerHolder
Constructor and Description |
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TimeWindowProcessor() |
Modifier and Type | Method and Description |
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CompiledCondition |
compileCondition(io.siddhi.query.api.expression.Expression condition,
MatchingMetaInfoHolder matchingMetaInfoHolder,
List<VariableExpressionExecutor> variableExpressionExecutors,
Map<String,Table> tableMap,
io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState state,
SiddhiQueryContext siddhiQueryContext)
To construct a finder having the capability of finding events at the processor that corresponds to the incoming
matchingEvent and the given matching expression logic.
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StreamEvent |
find(StateEvent matchingEvent,
CompiledCondition compiledCondition,
StreamEventCloner streamEventCloner,
io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState state)
To find events from the processor event pool, that the matches the matchingEvent based on finder logic.
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Scheduler |
getScheduler() |
protected StateFactory<io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState> |
init(ExpressionExecutor[] attributeExpressionExecutors,
ConfigReader configReader,
SiddhiQueryContext siddhiQueryContext)
The init method of the WindowProcessor, this method will be called before other methods
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protected void |
process(ComplexEventChunk<StreamEvent> streamEventChunk,
Processor nextProcessor,
StreamEventCloner streamEventCloner,
io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState state)
The main processing method that will be called upon event arrival
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void |
setScheduler(Scheduler scheduler) |
void |
start()
This will be called only once and this can be used to acquire
required resources for the processing element.
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void |
stop()
This will be called only once and this can be used to release
the acquired resources for processing.
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compileCondition, find
getProcessingMode, init, processEventChunk
getReturnAttributes
constructStreamEventPopulater, getNextProcessor, initProcessor, process, setNextProcessor, setStreamEventCloner, setToLast
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getNextProcessor, process, setNextProcessor, setToLast
public Scheduler getScheduler()
getScheduler
in interface SchedulingProcessor
public void setScheduler(Scheduler scheduler)
setScheduler
in interface SchedulingProcessor
protected StateFactory<io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState> init(ExpressionExecutor[] attributeExpressionExecutors, ConfigReader configReader, SiddhiQueryContext siddhiQueryContext)
SlidingWindowProcessor
init
in class SlidingWindowProcessor<io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState>
attributeExpressionExecutors
- the executors of each function parametersconfigReader
- the config reader of windowsiddhiQueryContext
- the context of the siddhi queryprotected void process(ComplexEventChunk<StreamEvent> streamEventChunk, Processor nextProcessor, StreamEventCloner streamEventCloner, io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState state)
SlidingWindowProcessor
process
in class SlidingWindowProcessor<io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState>
streamEventChunk
- the stream event chunk that need to be processednextProcessor
- the next processor to which the success events need to be passedstreamEventCloner
- helps to clone the incoming event for local storage or modificationstate
- current query statepublic CompiledCondition compileCondition(io.siddhi.query.api.expression.Expression condition, MatchingMetaInfoHolder matchingMetaInfoHolder, List<VariableExpressionExecutor> variableExpressionExecutors, Map<String,Table> tableMap, io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState state, SiddhiQueryContext siddhiQueryContext)
SlidingFindableWindowProcessor
compileCondition
in class SlidingFindableWindowProcessor<io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState>
condition
- the matching conditionmatchingMetaInfoHolder
- the meta structure of the incoming matchingEventvariableExpressionExecutors
- the list of variable ExpressionExecutors already createdtableMap
- map of event tablesstate
- current query statesiddhiQueryContext
- current siddhi query contextpublic StreamEvent find(StateEvent matchingEvent, CompiledCondition compiledCondition, StreamEventCloner streamEventCloner, io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState state)
SlidingFindableWindowProcessor
find
in class SlidingFindableWindowProcessor<io.siddhi.core.query.processor.stream.window.TimeWindowProcessor.WindowState>
matchingEvent
- the event to be matched with the events at the processorcompiledCondition
- the execution element responsible for matching the corresponding events that matches
the matchingEvent based on pool of events at ProcessorstreamEventCloner
- stream event clonerstate
- current query state @return the matched eventspublic void start()
ExternalReferencedHolder
start
in interface ExternalReferencedHolder
public void stop()
ExternalReferencedHolder
stop
in interface ExternalReferencedHolder
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