OuroborosFinalizer

STATUS: ACTIVE

This is the OuroborosFinalizer class. It is responsible for determining if the Ouroboros should continue to loop, and if so, enqueueing the next iteration. It also ensure passthrough objects are passed to the next iteration.

Implemented types

Finalizer

Constructors

public OuroborosFinalizer(Ouroboros ouroboros)

Constructor. Requires an instance of an Ouroboros implementing class to be passed in.

Parameters

Param	Description
ouroboros	Ouroboros instance to be enqueued, if necessary

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Fields

private logger → Log

An instance of the Log class used to create transaction-rollback safe log entries

private ouroboros → Ouroboros

An Ouroboros instance is required to be passed to the constructor. This is the instance that will be enqueued, if necessary.

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Methods

private static Boolean safeToEnqueueAccordingToLimits()

Method is responsible for determining if it's safe to enqueue the next iteration of the Ouroboros at least in accordance with the Queueable Apex limits. If it's not safe, the circuit breaker is tripped and the next iteration will not be enqueued.

Returns

Type	Description
Boolean	Boolean True if enqueuing the next iteration will not violate any Apex governor limits

public void execute(FinalizerContext context)

This is the method that is called by the Apex runtime when the Ouroboros instance has completed. It's responsible for determining if it's safe to enqueue the next iteration of the Ouroboros, and if so, if it's also necessary to enqueue the next iteration. If it is, it will enqueue the next iteration.

Parameters

Param	Description
context	FinalizerContext This is dependency injected by the Queueable system.

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