public void add(final SQLStatisticAggregateMap aggregateMap) {
        aggregateMap.countEntrySet().forEach(entry ->
                countMap.computeIfAbsent(entry.getKey(), k -> new LongAdder())
                        .add(entry.getValue().longValue()));

        aggregateMap.valueEntrySet().forEach(entry ->
                valueMap.computeIfAbsent(entry.getKey(), k -> new ValueStatValue())
                        .add(entry.getValue()));
    }
Adds entries from another aggregate map into this one.

@param aggregateMap
stroom-statistics/stroom-statistics-impl-sql/src/main/java/stroom/statistics/impl/sql/SQLStatisticAggregateMap.java