@Override
    public void process(List<ComplexEventChunk> complexEventChunks) {
        ComplexEventChunk complexEventChunk = new ComplexEventChunk();
        for (ComplexEventChunk streamEventChunk : complexEventChunks) {
            complexEventChunk.addAll(streamEventChunk);
        }
        process(complexEventChunk);
    }
The init method of the StreamProcessor, this method will be called before other methods

@param metaStreamEvent              the stream event meta
@param inputDefinition              the incoming stream definition
@param attributeExpressionExecutors the executors of each function parameters
@param configReader                 this hold the {@link AbstractStreamProcessor} extensions configuration
@param streamEventClonerHolder      stream event cloner holder
@param outputExpectsExpiredEvents   is expired events sent as output
@param findToBeExecuted             find will be executed
@param siddhiQueryContext           current siddhi query context
modules/siddhi-core/src/main/java/io/siddhi/core/query/processor/stream/AbstractStreamProcessor.java