@Override
        public Map<String, Object> snapshot() {
            Map<String, Object> state = new HashMap<>();
            state.put("DelayedEventQueue", delayedEventQueue.getSnapshot());
            state.put("LastTimestamp", lastTimestamp);
            return state;
        }
Implementation of {@link WindowProcessor} which represent a Window operating based on delay time.
modules/siddhi-core/src/main/java/io/siddhi/core/query/processor/stream/window/DelayWindowProcessor.java