== FIFOSchedulableBuilder - SchedulableBuilder for FIFO Scheduling Mode
FIFOSchedulableBuilder is a <
FIFOSchedulableBuilder is the scheduler:TaskSchedulerImpl.md#creating-instance[default
FIFOSchedulableBuilder is created, the
TaskSchedulerImpl passes its own
rootPool (a part of scheduler:TaskScheduler.md#contract[TaskScheduler Contract]).
FIFOSchedulableBuilder obeys the <
> does nothing.
addTaskSetManagerspark-scheduler-Pool.md#addSchedulable[passes the input
Schedulableto the one and only rootPool Pool (using
addSchedulable)] and completely disregards the properties of the Schedulable.
=== [[creating-instance]] Creating FIFOSchedulableBuilder Instance
FIFOSchedulableBuilder takes the following when created: