Struct TieringPolicy 

pub struct TieringPolicy { /* private fields */ }

Builds [PutOptions] and selects compression for each storage tier.

Constructed from config strings (hot/warm/cold class names). When no tiering is configured, all objects use Standard class with LZ4.

Implementations

impl TieringPolicy

pub fn new(hot_class: &str, warm_class: &str, cold_class: &str) -> Self

Create a tiering policy from config class names.

Falls back to Standard for unrecognized or empty class strings.

pub fn standard() -> Self

Default policy: all tiers use Standard.

pub fn storage_class(&self, tier: StorageTier) -> StorageClass

Storage class for the given tier.

pub fn has_cold_tier(&self) -> bool

Whether a cold tier is configured.

pub fn put_options(&self, tier: StorageTier) -> PutOptions

Build [PutOptions] for the given tier.

Sets:

• Attribute::StorageClass to the tier’s S3 class
• laminardb-tier tag for lifecycle rule targeting

pub fn put_options_create(&self, tier: StorageTier) -> PutOptions

Build [PutOptions] for the given tier with conditional-create mode.

Trait Implementations

impl Clone for TieringPolicy

fn clone(&self) -> TieringPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TieringPolicy

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

Formats the value using the given formatter.

impl Default for TieringPolicy

fn default() -> Self

Returns the “default value” for a type.