Struct opendal::layers::ImmutableIndexLayer

pub struct ImmutableIndexLayer { /* private fields */ }

Add an immutable in-memory index for underlying storage services.

Especially useful for services without list capability like HTTP.

Examples

let mut iil = ImmutableIndexLayer::default();

for i in ["file", "dir/", "dir/file", "dir_without_prefix/file"] {
    iil.insert(i.to_string())
}

let op = Operator::from_iter::<services::Memory>(HashMap::<_, _>::default())?
    .layer(iil)
    .finish();
Ok(())

Implementations

impl ImmutableIndexLayer

pub fn insert(&mut self, key: String)

Insert a key into index.

pub fn extend_iter<I>(&mut self, iter: I)

where I: IntoIterator<Item = String>,

Insert keys from iter.

Trait Implementations

impl Clone for ImmutableIndexLayer

fn clone(&self) -> ImmutableIndexLayer

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ImmutableIndexLayer

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

Formats the value using the given formatter.

impl Default for ImmutableIndexLayer

fn default() -> ImmutableIndexLayer

Returns the “default value” for a type.

impl<A: Access> Layer<A> for ImmutableIndexLayer

type LayeredAccess = ImmutableIndexAccessor<A>

The layered accessor that returned by this layer.

fn layer(&self, inner: A) -> Self::LayeredAccess

Intercept the operations on the underlying storage.