}
				}
				// Collect updates.
				updates := make(chan dataUsageEntry, 1)
				var wg sync.WaitGroup
				wg.Add(1)
				go func(name string) {
					defer wg.Done()
					for update := range updates {
						select {
						case <-ctx.Done():
						case bucketResults <- dataUsageEntryInfo{
							Name:   name,
							Parent: dataUsageRoot,
							Entry:  update,
						}:
						}
					}

  /**
   * Computes the function of current and new value. Subclasses should open-code this update
   * function for most uses, but the virtualized form is needed within retryUpdate.
   *
   * @param currentValue the current value (of either base or a cell)
   * @param newValue the argument from a user update call
   * @return result of the update function
   */
  abstract long fn(long currentValue, long newValue);

  /**

     */
    public OptionalEntity<FailureUrl> getFailureUrl(final String id) {
        return failureUrlBhv.selectByPK(id);
    }

    /**
     * Stores or updates a failure URL entity in the data store.
     *
     * @param failureUrl the FailureUrl entity to store or update
     */
    public void store(final FailureUrl failureUrl) {

        failureUrlBhv.insertOrUpdate(failureUrl, op -> {

                    throw new DictionaryException("Failed to update " + dictFile.getPath());
                }
            } catch (final IOException e) {
                throw new DictionaryException("Failed to update " + dictFile.getPath(), e);
            }

        }).orElse(() -> {

        return asJson(new ApiResult.ApiUpdateResponse().id(entity.getId()).created(true).status(ApiResult.Status.OK).result());
    }

    /**
     * Updates an existing user setting.
     *
     * @param body the user data to update
     * @return JSON response containing the updated user setting ID
     */
    // PUT /api/admin/user/setting
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {

 * output stem. It also tracks updated values for the item.
 */
public class StemmerOverrideItem extends DictionaryItem {
    /** The original input word. */
    private final String input;

    /** The original output stem. */
    private final String output;

    /** The new input word, if updated. */
    private String newInput;

    /** The new output stem, if updated. */
    private String newOutput;

        if (input == null) {
            return StringUtil.EMPTY;
        }
        return input;
    }

    /**
     * Checks if the item has been updated.
     *
     * @return true if the item has been updated, false otherwise.
     */
    public boolean isUpdated() {
        return newInput != null;
    }

    /**
     * Checks if the item has been marked for deletion.
     *

        return duplicateHostBhv.selectByPK(id);
    }

    /**
     * Stores (inserts or updates) a duplicate host configuration.
     *
     * <p>This method immediately refreshes the index to ensure the change is visible.
     * If the configuration already exists (based on ID), it will be updated;
     * otherwise, a new configuration will be created.</p>
     *

                    }
                } else {
                    update = updateCheckManager.isUpdateRequired(metadata, repository, file);
                }

                if (update) {
                    getLogger().info(metadata.getKey() + ": checking for updates from " + repository.getId());
                    try {

            return StringUtil.EMPTY;
        }
        return String.join("\n", outputs);
    }

    /**
     * Checks if the item has been updated.
     *
     * @return true if the item has been updated, false otherwise.
     */
    public boolean isUpdated() {
        return newInputs != null && newOutputs != null;
    }

    /**
     * Checks if the item has been marked for deletion.
     *