core/src/main/java/com/digitalpebble/stormcrawler/persistence/AbstractQueryingSpout.java
private boolean triggerQueries() {
        if (timeLastQueryReceived != 0 && maxDelayBetweenQueries > 0) {
            // check that we allowed some time between queries
            long difference = System.currentTimeMillis()
                    - timeLastQueryReceived;
            if (difference > maxDelayBetweenQueries) {
                return true;
            }
        }
        return false;
    }
private boolean triggerQueries() {
        if (timeLastQueryReceived != 0 && maxDelayBetweenQueries > 0) {
            // check that we allowed some time between queries
            long difference = System.currentTimeMillis()
                    - timeLastQueryReceived;
            if (difference > maxDelayBetweenQueries) {
                return true;
            }
        }
        return false;
    }
Indicates whether enough time has elapsed since receiving the results of
the previous query so that a new one can be sent even if the buffer is
not empty. Applies to asynchronous clients only.