@Override
    public void execute(ComplexEventChunk complexEventChunk) {
        threadBarrier.enter();
        try {
            next.execute(complexEventChunk);
        } finally {
            threadBarrier.exit();
        }
    }
Execute the handed StreamEvent

@param complexEventChunk event chunk to be executed
modules/siddhi-core/src/main/java/io/siddhi/core/query/input/stream/single/EntryValveExecutor.java