@Override
    public int hashCode() {

        int result = super.hashCode();
        result = 31 * result + (isFaultStream ? 1 : 0);
        result = 31 * result + (isInnerStream ? 1 : 0);
        return result;
    }
Query output stream inserting events in to another stream, table, or window
modules/siddhi-query-api/src/main/java/io/siddhi/query/api/execution/query/output/stream/InsertIntoStream.java