MongoDB\Driver\CursorInterface::isDead

(mongodb >=1.6.0)

MongoDB\Driver\CursorInterface::isDead — Checks if the cursor may have additional results

Опис

abstract public MongoDB\Driver\CursorInterface::isDead(): bool

Checks whether the cursor may have additional results available to read. A cursor is initially "alive" but may become "dead" for any of the following reasons:

Advancing a non-tailable cursor did not return a document
The cursor encountered an error
The cursor read its last batch to completion
The cursor reached its configured limit

This is primarily useful with tailable cursors.

Параметри

У цієї функції немає параметрів.

Значення, що повертаються

Returns true if additional results are not available, and false otherwise.

Помилки/виключення

У разі помилки обробки параметрів викидається MongoDB\Driver\Exception\InvalidArgumentException.

Прогляньте також

MongoDB\Driver\Cursor::isDead() - Checks if the cursor is exhausted or may have additional results

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