23 lines
675 B
Markdown
23 lines
675 B
Markdown
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# unfoldResourceAsync
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Wrap any resource that can be opened, queried for next element (in a blocking way) and closed using three distinct functions into a source.
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## Signature
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## Description
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Wrap any resource that can be opened, queried for next element (in a blocking way) and closed using three distinct functions into a source.
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Functions return @scala[`Future`] @java[`CompletionStage`] to achieve asynchronous processing
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@@@div { .callout }
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**emits** when there is demand and @scala[`Future`] @java[`CompletionStage`] from read function returns value
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**completes** when @scala[`Future`] @java[`CompletionStage`] from read function returns `None`
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@@@
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## Example
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