protected String buildRangeStoreValue(final String mapName, final int i, final Range<Long> range) {
        // pad the values out to make them more realistic in length to see impact on writes
        return LogUtil.message("{}-{}-{}-value{}{}",
                mapName, range.getFrom(), range.getTo(), i, PADDING);
    }
@param refStreamDefinitionCount  Number of {@link RefStreamDefinition}s to create.
@param keyValueMapCount          Number of KeyValue type maps to create per {@link RefStreamDefinition}
@param rangeValueMapCount        Number of RangeValue type maps to create per {@link RefStreamDefinition}
@param entryCount                Number of map entries to create per map
@param refStreamDefinitionOffset The offset from zero for the refStreamDefinition partIndex
@return The created {@link RefStreamDefinition} objects
stroom-pipeline/src/test/java/stroom/pipeline/refdata/store/offheapstore/AbstractRefDataOffHeapStoreTest.java