Struct FileIndexCacheBuilder 

pub struct FileIndexCacheBuilder { /* private fields */ }

Builder for constructing a FileIndexCache with custom configuration.

Implementations

impl FileIndexCacheBuilder

pub fn new() -> Self

Creates a new builder with no configuration.

All options use defaults if not explicitly set:

• Cache path: temp directory + “journal-engine-cache”
• Memory capacity: 128 entries
• Disk capacity: 16 MB
• Block size: 4 MB

pub fn with_cache_path(self, path: impl Into<PathBuf>) -> Self

Sets the cache directory path.

pub fn with_cache_namespace(self, namespace: impl Into<String>) -> Self

Sets the consumer-visible cache namespace.

Use the returned namespace with FileIndexKey::new_with_namespace or Self::file_index_key to force clean rebuilds for consumer semantic migrations while keeping the same physical cache directory. The cache object does not apply this namespace to keys constructed elsewhere.

pub fn cache_namespace(&self) -> &str

Returns the namespace configured on this builder.

pub fn file_index_key( &self, file: &File, facets: &Facets, source_timestamp_field: Option<FieldName>, ) -> FileIndexKey

Creates a file-index cache key using this builder’s namespace.

pub fn with_memory_capacity(self, capacity: usize) -> Self

Sets the memory capacity (number of items to keep in memory).

pub fn with_disk_capacity(self, capacity: usize) -> Self

Sets the disk capacity in bytes.

pub fn with_block_size(self, size: usize) -> Self

Sets the block size in bytes.

pub fn without_disk_cache(self) -> Self

Disables the disk-backed cache and keeps indexes in memory only.

pub async fn build(self) -> Result<FileIndexCache>

Builds the FileIndexCache with the configured settings.

Trait Implementations

impl Default for FileIndexCacheBuilder

fn default() -> Self

Returns the “default value” for a type.