Interface: QueueCapabilities

What a QueueDriver supports natively. The Queue uses it to emulate what it can (the retries, the dead letters, the results kept elsewhere) and to refuse the options it cannot honor (QueueCapabilityException).

Properties

dedupe

dedupe: boolean

A second message of the same id dropped while the first one is kept (add(..., {jobId, dedupe: true})).

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delay

delay: boolean

A message delivered at a time (add(..., {delay})).

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ordering

ordering: boolean

The messages of one key delivered in their order, one at a time (the ordered actions).

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priority

priority: boolean

The messages of a greater priority delivered first.

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redeliverAfter

redeliverAfter: boolean

A delivery given back to be delivered again after a delay (the retries).

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reply

reply: boolean

The driver carries a reply to the instance which sent a message (QueueDriver.reply).

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results

results: boolean

The driver keeps the results (QueueDriver.saveResult, QueueDriver.readResult).