polars_io::file_cache

Struct FileCacheEntry

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pub struct FileCacheEntry(/* private fields */);
Available on crate feature file_cache only.

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impl FileCacheEntry

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pub fn uri(&self) -> &Arc<str>

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pub fn try_open_assume_latest(&self) -> PolarsResult<File>

Directly returns the cached file if it finds one without checking if there is a newer version on the remote. This does not make any API calls if it finds a cached file, otherwise it simply downloads the file.

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pub fn try_open_check_latest(&self) -> PolarsResult<File>

Returns the cached file after ensuring it is up to date against the remote This will always perform at least 1 API call for fetching metadata.

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pub fn update_ttl(&self, ttl: u64)

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