public void setTimestamps(long startTimestamp, long endTimestamp, long aliveTimestamp) {
            this.startTimestamp = startTimestamp;
            this.endTimestamp = endTimestamp;
            this.aliveTimestamp = aliveTimestamp;
        }
Collection used to manage session windows.

@param <E> sub types of ComplexEvent such as StreamEvent and StateEvent.
modules/siddhi-core/src/main/java/io/siddhi/core/query/processor/stream/window/SessionWindowProcessor.java