@Override
            public BigDecimal getQueryBoostContentLangAsDecimal() {
                return new BigDecimal("0.5");
            }

            @Override
            public String getQueryPrefixExpansions() {
                return "50";
            }

            @Override
            public Integer getQueryPrefixExpansionsAsInteger() {
                return 50;
            }

Shinsuke Sugaya <******@****.***> 1773442886 +0900

     * The value is, e.g. 50 <br>
     * comment: Number of expansions for prefix queries.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryPrefixExpansions();

    /**
     * Get the value for the key 'query.prefix.expansions' as {@link Integer}. <br>
     * The value is, e.g. 50 <br>
     * comment: Number of expansions for prefix queries.