Struct LayoutOptions 

pub struct LayoutOptions {
    pub kind: Option<LayoutKind>,
    pub metadata_file: Option<String>,
    pub manifest: Option<String>,
}

The layout/metadataFile/manifest triple of OpenOptions, exactly as a caller passed it — unresolved, because which of the two file names wins (and whether they even agree) is decided by LayoutOptions::metadata_file, and the kind by [resolve_kind].

Fields

kind: Option<LayoutKind>

None means “whatever is already on disk”, not Flat — see [resolve_kind].

metadata_file: Option<String>

Name of the metadata document inside the database directory, DEFAULT_METADATA_FILE when absent.

manifest: Option<String>

Deprecated alias of metadata_file, taking the same value. Both may be given only when they name the same file.

Implementations

impl LayoutOptions

pub fn metadata_file(&self) -> Result<Option<&str>, HaysonSchemaError>

The metadata document name these options ask for, or None for the default.

Refuses metadata_file and manifest naming two different files: they name the same document, so one of the two would be silently ignored.

Trait Implementations

impl Clone for LayoutOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutOptions

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

Formats the value using the given formatter.

impl Default for LayoutOptions

fn default() -> Self

Returns the “default value” for a type.

impl Eq for LayoutOptions

impl PartialEq for LayoutOptions

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for LayoutOptions