FirstGroupByPerEventOutputRateLimiter (Siddhi Core 5.1.30 API)

java.lang.Object
- io.siddhi.core.query.output.ratelimit.OutputRateLimiter<io.siddhi.core.query.output.ratelimit.event.FirstGroupByPerEventOutputRateLimiter.RateLimiterState>
- - io.siddhi.core.query.output.ratelimit.event.FirstGroupByPerEventOutputRateLimiter

All Implemented Interfaces:

PartitionCreationListener
```
public class FirstGroupByPerEventOutputRateLimiter
extends OutputRateLimiter<io.siddhi.core.query.output.ratelimit.event.FirstGroupByPerEventOutputRateLimiter.RateLimiterState>
```
Implementation of OutputRateLimiter which will collect pre-defined number of events and the emit only the first event. This implementation specifically handle queries with group by.

Field Summary
- Fields inherited from class io.siddhi.core.query.output.ratelimit.OutputRateLimiter
  latencyTracker, lockWrapper, outputCallback, queryCallbacks, siddhiQueryContext, stateHolder

Constructor Summary

Constructors
Constructor Description

FirstGroupByPerEventOutputRateLimiter(String id, Integer value)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected StateFactory<io.siddhi.core.query.output.ratelimit.event.FirstGroupByPerEventOutputRateLimiter.RateLimiterState>`	`init()`
`void`	`partitionCreated()`	Get called when partition is created
`void`	`process(ComplexEventChunk complexEventChunk)`

Methods inherited from class io.siddhi.core.query.output.ratelimit.OutputRateLimiter
addQueryCallback, getOutputCallback, hasCallBack, init, process, removeQueryCallback, sendToCallBacks, setOutputCallback

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - FirstGroupByPerEventOutputRateLimiter
```
public FirstGroupByPerEventOutputRateLimiter(String id,
                                             Integer value)
```
- Method Detail
  - init
```
protected StateFactory<io.siddhi.core.query.output.ratelimit.event.FirstGroupByPerEventOutputRateLimiter.RateLimiterState> init()
```
    Specified by:
    
    init in class OutputRateLimiter<io.siddhi.core.query.output.ratelimit.event.FirstGroupByPerEventOutputRateLimiter.RateLimiterState>
  - process
```
public void process(ComplexEventChunk complexEventChunk)
```
    Specified by:
    
    process in class OutputRateLimiter<io.siddhi.core.query.output.ratelimit.event.FirstGroupByPerEventOutputRateLimiter.RateLimiterState>
  - partitionCreated
```
public void partitionCreated()
```
    Description copied from interface: PartitionCreationListener
    
    Get called when partition is created