@JsonPropertyDescription(
            "Specifies that each entry should be automatically removed from the cache once " +
            "a fixed duration has elapsed after the entry's creation, or the most recent replacement of its value. " +
            "In ISO-8601 duration format, e.g. 'PT5M'. If no value is set then entries will not be aged out based on " +
            " these criteria.")
    @JsonProperty(PROP_NAME_EXPIRE_AFTER_WRITE)
    @RequiresRestart(RestartScope.SYSTEM)
    public StroomDuration getExpireAfterWrite() {
        return expireAfterWrite;
    }
The default {@link StatisticsMode} to use with stroom-proxy.
stroom-util/src/main/java/stroom/util/cache/CacheConfig.java