MongoDB\Driver\CursorInterface::isDead

(mongodb >=1.6.0)

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

Beschreibung

abstract public MongoDB\Driver\CursorInterface::isDead ( void ) : 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.

Parameter-Liste

Diese Funktion besitzt keine Parameter.

Rückgabewerte

Returns TRUE if additional results are not available, and FALSE otherwise.

Fehler/Exceptions

  • Throws MongoDB\Driver\InvalidArgumentException on argument parsing errors.

Siehe auch