When a filter changes and includes/removes new objects, those are automatically handled.
* Proper syncing and shutdown logic. Checking for when an informer has fully started can be quite tricky; `kclient` automatically handles it.

Under the `kclient` package, `clienttest` also provides similar interfaces meant for writing unit tests.

///

## Other middlewares

You can later read more about other middlewares in the [Advanced User Guide: Advanced Middleware](../advanced/middleware.md){.internal-link target=_blank}.

          // If the delegate is already done, run the execution list immediately on the current
          // thread.
          executionList.execute();
          return;
        }

        // TODO(lukes): handle RejectedExecutionException
        adapterExecutor.execute(
            () -> {
              try {
                /*
                 * Threads from our private pool are never interrupted. Threads from a

  // See https://github.com/kubernetes/apiserver/blob/master/pkg/authentication/user/user.go for some
  // well-known group names.
  // Required.
  optional string name = 1;
}

// LimitResponse defines how to handle requests that can not be executed right now.
// +union
message LimitResponse {
  // `type` is "Queue" or "Reject".
  // "Queue" means that requests that can not be executed upon arrival

        "The client does not have the necessary access rights to perform the requested function.", "Access is denied.",
        "The TID specified was invalid.", "The handle is invalid.", "The network name cannot be found.",
        "Not enough storage is available to process this command.", "The media is write protected.", "The device is not ready.",

        "reserved",
        "The client does not have the necessary access rights to perform the requested function.",
        "Access is denied.",
        "The TID specified was invalid.",
        "The handle is invalid.",
        "The network name cannot be found.",
        "Not enough storage is available to process this command.",
        "The media is write protected.",
        "The device is not ready.",

                docMeta.primaryTerm(hit.getPrimaryTerm());
                handler.handle(entity);
            });

            return !handler.isBreakCursor();
        });
    }

    protected <RESULT extends ENTITY> void delegateSelectBulk(final ConditionBean cb, final EntityRowHandler<List<RESULT>> handler,
            final Class<? extends RESULT> entityType) {
        assertCBStateValid(cb);

                docMeta.primaryTerm(hit.getPrimaryTerm());
                handler.handle(entity);
            });

            return !handler.isBreakCursor();
        });
    }

    protected <RESULT extends ENTITY> void delegateSelectBulk(final ConditionBean cb, final EntityRowHandler<List<RESULT>> handler,
            final Class<? extends RESULT> entityType) {
        assertCBStateValid(cb);

        }
    }


    @Test
    public void testWatchModified () throws InterruptedException, ExecutionException, IOException {
        // samba 4 starting with some version does not seem to handle this correctly :(
        try ( SmbWatchHandle w = this.base
                .watch(FileNotifyInformation.FILE_NOTIFY_CHANGE_ATTRIBUTES | FileNotifyInformation.FILE_NOTIFY_CHANGE_LAST_WRITE, false) ) {

	}
	if isSysErrIO(err) {
		return errFaultyDisk
	}
	if isSysErrInvalidArg(err) {
		storageLogIf(context.Background(), err)
		// For some odd calls with O_DIRECT reads
		// filesystems can return EINVAL, handle
		// these as FileNotFound instead.
		return errFileNotFound
	}
	if isSysErrNoSpace(err) {
		return errDiskFull
	}
	return err