Struct InstanceCreator 

pub struct InstanceCreator {
    metadata_kv_backend_creator: Box<dyn MetadataKvBackendCreator>,
    node_manager_creator: Box<dyn NodeManagerCreator>,
    table_id_allocator_creator: Box<dyn TableIdAllocatorCreator>,
    procedure_executor_creator: Box<dyn ProcedureExecutorCreator>,
    leader_services_controller: Box<dyn StandaloneLeaderServicesController>,
    open_regions_writable_override: Option<bool>,
}

InstanceCreator is used for grouping various component creators for building the Standalone instance, suitable for customizing how the instance can be built.

Fields

metadata_kv_backend_creator: Box<dyn MetadataKvBackendCreator>

Hook for replacing metadata KV construction while reusing the rest of the standalone build flow.

node_manager_creator: Box<dyn NodeManagerCreator>

table_id_allocator_creator: Box<dyn TableIdAllocatorCreator>

procedure_executor_creator: Box<dyn ProcedureExecutorCreator>

leader_services_controller: Box<dyn StandaloneLeaderServicesController>

open_regions_writable_override: Option<bool>

Implementations

impl InstanceCreator

pub fn new( node_manager_creator: Box<dyn NodeManagerCreator>, table_id_allocator_creator: Box<dyn TableIdAllocatorCreator>, procedure_executor_creator: Box<dyn ProcedureExecutorCreator>, ) -> Self

pub fn with_metadata_kv_backend_creator( self, metadata_kv_backend_creator: Box<dyn MetadataKvBackendCreator>, ) -> Self

pub fn map_metadata_kv_backend_creator<F>(self, f: F) -> Self

where F: FnOnce(Box<dyn MetadataKvBackendCreator>) -> Box<dyn MetadataKvBackendCreator>,

Wraps the metadata backend creator while retaining the default creator.

This is useful for callers that need to add runtime behavior around metadata access without reimplementing backend selection.

pub fn map_node_manager_creator<F>(self, f: F) -> Self

where F: FnOnce(Box<dyn NodeManagerCreator>) -> Box<dyn NodeManagerCreator>,

Wraps node-manager creation while preserving the selected standalone node manager.

pub fn map_procedure_executor_creator<F>(self, f: F) -> Self

where F: FnOnce(Box<dyn ProcedureExecutorCreator>) -> Box<dyn ProcedureExecutorCreator>,

Wraps procedure-executor creation while preserving the current setup.

pub fn with_leader_services_controller( self, leader_services_controller: Box<dyn StandaloneLeaderServicesController>, ) -> Self

Replaces startup/shutdown ownership for procedure manager and WAL provider.

pub fn with_open_regions_writable_override(self, writable: bool) -> Self

Overrides whether regions opened during startup should become writable.

None keeps the default startup behavior (regions open writable).

Warning: setting this to false in standalone mode will leave reopened regions permanently read-only. Standalone has no metasrv heartbeat or region-role reconciliation, so there is no path to promote regions to Leader after startup.

Trait Implementations

impl Default for InstanceCreator

fn default() -> Self

Returns the “default value” for a type.