@JsonPropertyDescription(
            "Specifies that each entry should be automatically removed from the cache once " +
            "this duration has elapsed after the entry's creation, the most recent replacement of " +
            "its value, or its last read. In ISO-8601 duration format, e.g. 'PT10M'. If no value is set then " +
            " entries will not be aged out based these criteria.")
    @JsonProperty(PROP_NAME_EXPIRE_AFTER_ACCESS)
    @RequiresRestart(RestartScope.SYSTEM)
    public StroomDuration getExpireAfterAccess() {
        return expireAfterAccess;
    }
The default {@link StatisticsMode} to use with stroom-proxy.
stroom-util/src/main/java/stroom/util/cache/CacheConfig.java