28 lines
672 B
Rust
28 lines
672 B
Rust
mod dir;
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pub use dir::*;
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mod s3;
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pub use s3::*;
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pub mod misc;
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/// A read-only set of [Item]s.
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pub trait DataSource {
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/// Get the number of items in this source
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fn len(&self) -> usize;
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/// Get an item from this datasource
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fn get(
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&self,
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key: &str,
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) -> impl Future<Output = Result<Option<crate::value::Item>, std::io::Error>> + Send;
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/// Iterate over all items in this source in an arbitrary order
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fn iter(&self) -> impl Iterator<Item = &crate::value::Item>;
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/// Return the time of the latest change to the data in this source
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fn latest_change(
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&self,
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) -> impl Future<Output = Result<Option<chrono::DateTime<chrono::Utc>>, std::io::Error>> + Send;
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}
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