Interface IAdapter

Namespace: Donut
Located at IAdapter.php

Methods summary
`public`	# `createMessage( Donut\Message $message )`
`public Donut\Message\|null`	# `fetchMessage( )` Returns `Donut\Message`\|null
`public`	# `markAsDone( Donut\Message $message, Donut\Time $processed )`
`public`	# `markAsFailed( Donut\Message $message, Donut\Time $processed )`
`public`	# `log( string $subject, string\|null $text, Donut\Message $message, Donut\Time $date )` Parameters `$subject` `$text` `$message` `$date`
`public Donut\Time\|null`	# `getProducerLastRun( Donut\IProducer $producer )` Returns `Donut\Time`\|null
`public`	# `saveProducerLastRun( Donut\IProducer $producer, Donut\Time $lastrun )`
`public boolean`	# `existsItem( string $group, string $itemId )` Parameters `$group` `$itemId` Returns boolean
`public`	# `saveItem( string $group, string $itemId )` Parameters `$group` `$itemId`