beforeChildStart method

  1. @visibleForOverriding
Cancelled? beforeChildStart(
  1. JobBase<Object?> child
)

The parent's last word before a child starts.

A non-null result finishes the child with it, and belongs to that child alone, as JobBase.finish explains: it is built at every call. solo, for example, checks its start rules here.

Implementation

@visibleForOverriding
Cancelled? beforeChildStart(JobBase<Object?> child) => null;