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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.

Differences Between: [Versions 310 and 401] [Versions 311 and 401] [Versions 39 and 401] [Versions 400 and 401]

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File Size: 284 lines (8 kb)
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Defines 1 class

ChangeStream:: (12 methods):
  __construct()
  current()
  getCursorId()
  getResumeToken()
  key()
  next()
  rewind()
  valid()
  isResumableError()
  onIteration()
  resume()
  resumeOrThrow()


Class: ChangeStream  - X-Ref

Iterator for a change stream.

__construct(ChangeStreamIterator $iterator, callable $resumeCallable)   X-Ref

param: ResumeCallable $resumeCallable

current()   X-Ref

return: mixed

getCursorId()   X-Ref

return: CursorId

getResumeToken()   X-Ref
Returns the resume token for the iterator's current position.

Null may be returned if no change documents have been iterated and the
server did not include a postBatchResumeToken in its aggregate or getMore
command response.

return: array|object|null

key()   X-Ref

return: mixed

next()   X-Ref

return: void

rewind()   X-Ref

return: void

valid()   X-Ref

return: boolean

isResumableError(RuntimeException $exception)   X-Ref
Determines if an exception is a resumable error.


onIteration(bool $incrementKey)   X-Ref
Perform housekeeping after an iteration event.

param: boolean $incrementKey Increment $key if there is a current result

resume()   X-Ref
Recreates the ChangeStreamIterator after a resumable server error.


resumeOrThrow(RuntimeException $exception)   X-Ref
Either resumes after a resumable error or re-throws the exception.