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MultiStorage

Struct MultiStorage 

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pub struct MultiStorage { /* private fields */ }
Expand description

Multi-backend storage abstraction that delegates to filesystem, in-memory, S3, or SQLite.

You pick one backend at construction via a storage-type string ("fs", "memory", "aws", "sqlite", "rusqlite", or "local" on wasm32). All file operations are then routed to that backend through the ObjectStore trait.

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impl MultiStorage

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pub fn clean_path(path: &str) -> String

Strip leading slashes from a path for non-filesystem backends. Returns "." if empty.

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pub fn root(&self) -> Option<&Path>

Returns the filesystem base directory, if this storage uses a filesystem backend.

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pub fn default_new() -> Result<Self, ObjectStoreError>

Create a new MultiStorage with the default filesystem backend.

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pub fn new(storage_type: String) -> Result<Self, ObjectStoreError>

Create a new MultiStorage with the given backend type, rooted at the process CWD.

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pub fn _new( storage_type: String, absolute_path: PathBuf, ) -> Result<Self, ObjectStoreError>

Create a new MultiStorage with an explicit base directory for filesystem storage.

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pub fn save_file( &self, path: &str, contents: &[u8], ) -> Result<(), ObjectStoreError>

Write contents to path in all configured storage backends.

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pub fn get_file( &self, path: &str, preference: Option<StorageType>, ) -> Result<Vec<u8>, ObjectStoreError>

Read a file from the preferred (or default) storage backend.

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pub fn file_exists( &self, path: &str, preference: Option<StorageType>, ) -> Result<bool, ObjectStoreError>

Check whether a file exists in the preferred (or default) storage backend.

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pub fn list( &self, prefix: &str, preference: Option<StorageType>, ) -> Result<Vec<String>, ObjectStoreError>

List all files under prefix in the preferred (or default) storage backend.

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pub fn rename_file(&self, from: &str, to: &str) -> Result<(), ObjectStoreError>

Rename (move) a file across all configured storage backends.

Trait Implementations§

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impl Clone for MultiStorage

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fn clone(&self) -> MultiStorage

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for MultiStorage

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl StorageDocumentTraits for MultiStorage

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impl<T> Any for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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