WindowProcessor (Siddhi Core 5.1.30 API)

java.lang.Object
- io.siddhi.core.query.processor.stream.AbstractStreamProcessor<S>
- - io.siddhi.core.query.processor.stream.window.WindowProcessor<S>

Type Parameters:

S - current state of the processor

All Implemented Interfaces:

Processor, ExternalReferencedHolder

Direct Known Subclasses:

BatchingWindowProcessor, GroupingWindowProcessor, HopingWindowProcessor, SlidingWindowProcessor, WindowWindowProcessor
```
public abstract class WindowProcessor<S extends State>
extends AbstractStreamProcessor<S>
```
Abstract parent implementation of Processor to represent Windows. Common window behaviors will be handled here through this class and different implementations should extend this

- 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 Description
  
  WindowProcessor()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  List<io.siddhi.query.api.definition.Attribute> getReturnAttributes()
  - Methods inherited from class io.siddhi.core.query.processor.stream.AbstractStreamProcessor
    constructStreamEventPopulater, getNextProcessor, getProcessingMode, init, initProcessor, isStateful, process, process, processEventChunk, 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.ExternalReferencedHolder
    start, stop

- Constructor Detail
  - WindowProcessor
```
public WindowProcessor()
```
- Method Detail
  - getReturnAttributes
```
public List<io.siddhi.query.api.definition.Attribute> getReturnAttributes()
```
    Specified by:
    
    getReturnAttributes in class AbstractStreamProcessor<S extends State>