/**
     * Retrieves a data configuration by its unique identifier.
     *
     * @param id the unique identifier of the data configuration
     * @return an OptionalEntity containing the DataConfig if found, empty otherwise
     * @throws IllegalArgumentException if id is null or empty
     */
    public OptionalEntity<DataConfig> getDataConfig(final String id) {
        return dataConfigBhv.selectByPK(id);
    }

    /**

     *
     * @return true if a previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether a previous page exists before the current page.
     *
     * @param existPrePage true if a previous page exists, false otherwise
     */
    public void setExistPrePage(final boolean existPrePage) {

     * Checks if a previous page exists.
     *
     * @return true if a previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether a previous page exists.
     *
     * @param existPrePage true if a previous page exists, false otherwise
     */
    public void setExistPrePage(final boolean existPrePage) {

    /**
     * Checks if the enumeration is complete.
     *
     * @return true if enumeration is done, false otherwise
     */
    protected abstract boolean isDone();

    /**
     * Fetches more entries from the server.
     *
     * @return true if more entries were fetched, false otherwise
     * @throws CIFSException if an error occurs during fetching
     */

     *
     * @param fieldName the name of the field to get configuration for
     * @return an OptionalThing containing the Config if the field exists and has a non-blank value,
     *         otherwise an empty OptionalThing
     */
    public OptionalThing<Config> getConfig(final String fieldName) {
        final String value = params.get(fieldName);
        if (StringUtil.isNotBlank(value)) {

      for any such Derivative Works as a whole, provided Your use,
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      the conditions stated in this License.

   5. Submission of Contributions. Unless You explicitly state otherwise,
      any Contribution intentionally submitted for inclusion in the Work
      by You to the Licensor shall be under the terms and conditions of

      for any such Derivative Works as a whole, provided Your use,
      reproduction, and distribution of the Work otherwise complies with
      the conditions stated in this License.

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      by You to the Licensor shall be under the terms and conditions of

     *
     * @return true if there is a previous page, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether there is a previous page available.
     *
     * @param existPrePage true if there is a previous page, false otherwise
     */
    public void setExistPrePage(final boolean existPrePage) {

     * @return true if exceptions should be ignored, false otherwise.
     */
    public boolean isIgnoreException() {
        return ignoreException;
    }

    /**
     * Sets whether to ignore exceptions.
     * @param ignoreException true to ignore exceptions, false otherwise.
     */
    public void setIgnoreException(final boolean ignoreException) {

    /**
     * Checks if this sitemap set is of type URLSET.
     * @return true if this is a URLSET, false otherwise
     */
    public boolean isUrlSet() {
        return URLSET.equals(type);
    }

    /**
     * Checks if this sitemap set is of type INDEX.
     * @return true if this is an INDEX, false otherwise
     */
    public boolean isIndex() {
        return INDEX.equals(type);
    }

    /**