guidToHandle.put(info.getCreateGuid(), info);
                        log.info("Loaded persisted handle: {}", info.getPath());
                    } else {
                        Files.delete(handleFile);
                        log.debug("Deleted expired persisted handle: {}", handleFile);
                    }
                } catch (Exception e) {

    }

    /**
     * Deletes a related query item.
     *
     * @param form the edit form containing the ID of the item to delete
     * @return HTML response redirecting to the list page after deletion
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse delete(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.DETAILS, this::asListHtml);

    @Secured({ ROLE })
    public HtmlResponse delete(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.DETAILS, this::asListHtml);
        validate(form, messages -> {}, this::asDetailsHtml);
        verifyToken(this::asDetailsHtml);
        final String id = form.id;
        groupService.getGroup(id).ifPresent(entity -> {
            try {
                groupService.delete(entity);

     * @param form the edit form containing the log entry information
     * @return HTML response redirecting to the list page after deletion
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse delete(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.DETAILS, this::asListHtml);
        validate(form, messages -> {}, this::asDetailsHtml);
        verifyToken(this::asDetailsHtml);

        bulkDelete.execute().actionGet(fessConfig.getIndexSearchTimeout());

        // Delete any remaining events beyond the search size limit (discard overflow)
        try {
            client.deleteByQuery(indexName, QueryBuilders.termQuery("hostname", hostname));
        } catch (final Exception e) {
            logger.debug("Failed to delete remaining log notifications.", e);
        }

這裡的「操作」指的是 HTTP 的「方法」之一。

其中包括：

* `POST`
* `GET`
* `PUT`
* `DELETE`

……以及更少見的：

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

在 HTTP 協定中，你可以使用這些「方法」之一（或更多）與每個路徑進行通信。

---

在建置 API 時，你通常使用這些特定的 HTTP 方法來執行特定的動作。

通常你使用：

* `POST`：用來建立資料。
* `GET`：用來讀取資料。
* `PUT`：用來更新資料。
* `DELETE`：用來刪除資料。

所以，在 OpenAPI 中，每個 HTTP 方法都被稱為「操作」。

我們將會稱它們為「**操作**」。

            throw e;
        }
    }

    /**
     * Deletes all URL queue entries for the specified session.
     *
     * @param sessionId The session ID.
     */
    @Override
    public void delete(final String sessionId) {
        deleteBySessionId(sessionId);
    }

    /**
     * Offers multiple URL queue entries for the specified session.
     * Only URLs that don't already exist will be added.
     *

        } else {
            // do nothing
        }
    }

    /**
     * Deletes a user from the LDAP directory.
     *
     * @param user the user object to delete
     */
    public void delete(final User user) {
        if (!fessConfig.isLdapAdminEnabled(user.getName())) {
            return;
        }

        final Supplier<Hashtable<String, String>> adminEnv = this::createAdminEnv;

Normally you use:

* `POST`: to create data.
* `GET`: to read data.
* `PUT`: to update data.
* `DELETE`: to delete data.

So, in OpenAPI, each of the HTTP methods is called an "operation".

We are going to call them "**operations**" too.

#### Define a *path operation decorator* { #define-a-path-operation-decorator }

Normalerweise verwenden Sie:

* `POST`: um Daten zu erzeugen (create).
* `GET`: um Daten zu lesen (read).
* `PUT`: um Daten zu aktualisieren (update).
* `DELETE`: um Daten zu löschen (delete).

In OpenAPI wird folglich jede dieser HTTP-Methoden als „Operation“ bezeichnet.

Wir werden sie auch „**Operationen**“ nennen.