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SupervisorSpecBuilder

rust_supervisor::spec::supervisor_builder

Struct SupervisorSpecBuilder 

Source 
pub struct SupervisorSpecBuilder { /* private fields */ }
Expand description

Builder for SupervisorSpec.

Public constructors and setters keep returning SupervisorSpecBuilder for chaining. Call build to consume the builder, validate local invariants, and receive the final SupervisorSpec.

Implementations§

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impl SupervisorSpecBuilder

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pub fn root(children: Vec<ChildSpec>) -> Self

Creates a root supervisor specification builder.

§Arguments
  • children: Children declared under the root supervisor.
§Returns

Returns a builder seeded with the same defaults as SupervisorSpec::root.

§Examples
use rust_supervisor::spec::supervisor_builder::SupervisorSpecBuilder;

let spec = SupervisorSpecBuilder::root(Vec::new()).build()?;
assert_eq!(spec.path.to_string(), "/");
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pub fn new(children: Vec<ChildSpec>) -> Self

Creates a root supervisor specification builder.

§Arguments
  • children: Children declared under the root supervisor.
§Returns

Returns a builder seeded with the same defaults as SupervisorSpec::root.

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pub fn path(self, path: SupervisorPath) -> Self

Sets the supervisor path.

§Arguments
  • path: Stable path for this supervisor.
§Returns

Returns the builder for chaining.

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pub fn strategy(self, strategy: SupervisionStrategy) -> Self

Sets the restart scope strategy.

§Arguments
  • strategy: Restart strategy for child exits.
§Returns

Returns the builder for chaining.

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pub fn children(self, children: Vec<ChildSpec>) -> Self

Replaces supervisor children.

§Arguments
  • children: Children declared under the supervisor.
§Returns

Returns the builder for chaining.

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pub fn child(self, child: ChildSpec) -> Self

Appends one supervisor child.

§Arguments
  • child: Child specification appended in declaration order.
§Returns

Returns the builder for chaining.

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

Sets the configuration version.

§Arguments
  • config_version: Version string that produced this declaration.
§Returns

Returns the builder for chaining.

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pub fn default_restart_policy( self, default_restart_policy: RestartPolicy, ) -> Self

Sets the default restart policy.

§Arguments
  • default_restart_policy: Restart policy inherited by children.
§Returns

Returns the builder for chaining.

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pub fn default_backoff_policy( self, default_backoff_policy: BackoffPolicy, ) -> Self

Sets the default backoff policy.

§Arguments
  • default_backoff_policy: Backoff policy inherited by children.
§Returns

Returns the builder for chaining.

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pub fn default_health_policy(self, default_health_policy: HealthPolicy) -> Self

Sets the default health policy.

§Arguments
  • default_health_policy: Health policy inherited by children.
§Returns

Returns the builder for chaining.

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pub fn tree_shutdown(self, tree_shutdown: TreeShutdownPolicy) -> Self

Sets the tree shutdown policy for this supervisor.

§Arguments
  • tree_shutdown: Tree shutdown policy and default child budgets.
§Returns

Returns the builder for chaining.

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pub fn supervisor_failure_limit(self, supervisor_failure_limit: u32) -> Self

Sets the supervisor failure limit.

§Arguments
  • supervisor_failure_limit: Maximum supervisor failures before escalation.
§Returns

Returns the builder for chaining.

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pub fn restart_limit(self, restart_limit: RestartLimit) -> Self

Sets the supervisor-level restart limit.

§Arguments
  • restart_limit: Restart limit applied at supervisor level.
§Returns

Returns the builder for chaining.

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pub fn without_restart_limit(self) -> Self

Clears the supervisor-level restart limit.

§Arguments

This function has no arguments.

§Returns

Returns the builder for chaining.

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pub fn escalation_policy(self, escalation_policy: EscalationPolicy) -> Self

Sets the supervisor-level fallback escalation policy.

The selected policy is used when a child-level or group-level execution plan does not define its own escalation policy. Root supervisors do not have a parent supervisor at runtime, so EscalateToParent is only a configured planning and diagnostic label for root supervisors.

§Arguments
  • escalation_policy: Fallback escalation policy applied at supervisor level.
§Returns

Returns the builder for chaining.

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pub fn without_escalation_policy(self) -> Self

Clears the supervisor-level fallback escalation policy.

§Arguments

This function has no arguments.

§Returns

Returns the builder for chaining.

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pub fn group_strategies(self, group_strategies: Vec<GroupStrategy>) -> Self

Replaces group strategy overrides.

§Arguments
  • group_strategies: Group strategy overrides.
§Returns

Returns the builder for chaining.

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pub fn group_strategy(self, group_strategy: GroupStrategy) -> Self

Appends one group strategy override.

§Arguments
  • group_strategy: Group strategy override appended to the supervisor.
§Returns

Returns the builder for chaining.

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pub fn group_configs(self, group_configs: Vec<GroupConfig>) -> Self

Replaces group configurations.

§Arguments
  • group_configs: Group-level membership and budget configurations.
§Returns

Returns the builder for chaining.

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pub fn group_config(self, group_config: GroupConfig) -> Self

Appends one group configuration.

§Arguments
  • group_config: Group configuration appended to the supervisor.
§Returns

Returns the builder for chaining.

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pub fn group_dependencies( self, group_dependencies: Vec<GroupDependencyEdge>, ) -> Self

Replaces cross-group dependency edges.

§Arguments
  • group_dependencies: Cross-group dependency edges.
§Returns

Returns the builder for chaining.

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pub fn group_dependency(self, group_dependency: GroupDependencyEdge) -> Self

Appends one cross-group dependency edge.

§Arguments
  • group_dependency: Cross-group dependency edge appended to the supervisor.
§Returns

Returns the builder for chaining.

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pub fn severity_defaults( self, severity_defaults: HashMap<TaskRole, SeverityClass>, ) -> Self

Replaces default severity classes by task role.

§Arguments
  • severity_defaults: Default severity map by task role.
§Returns

Returns the builder for chaining.

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pub fn severity_default( self, task_role: TaskRole, severity: SeverityClass, ) -> Self

Sets one default severity class.

§Arguments
  • task_role: Task role receiving the default severity class.
  • severity: Severity class used for the task role.
§Returns

Returns the builder for chaining.

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pub fn without_severity_default(self, task_role: TaskRole) -> Self

Removes one default severity class.

§Arguments
  • task_role: Task role whose default severity class is removed.
§Returns

Returns the builder for chaining.

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pub fn child_strategy_overrides( self, child_strategy_overrides: Vec<ChildStrategyOverride>, ) -> Self

Replaces child-level strategy overrides.

§Arguments
  • child_strategy_overrides: Child-level strategy overrides.
§Returns

Returns the builder for chaining.

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pub fn child_strategy_override( self, child_strategy_override: ChildStrategyOverride, ) -> Self

Appends one child-level strategy override.

§Arguments
  • child_strategy_override: Child-level strategy override appended to the supervisor.
§Returns

Returns the builder for chaining.

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pub fn dynamic_supervisor_policy( self, dynamic_supervisor_policy: DynamicSupervisorPolicy, ) -> Self

Sets the dynamic supervisor policy.

§Arguments
  • dynamic_supervisor_policy: Runtime child addition policy.
§Returns

Returns the builder for chaining.

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pub fn control_channel_capacity(self, control_channel_capacity: usize) -> Self

Sets the control command channel capacity.

§Arguments
  • control_channel_capacity: Control command channel capacity.
§Returns

Returns the builder for chaining.

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pub fn event_channel_capacity(self, event_channel_capacity: usize) -> Self

Sets the event broadcast channel capacity.

§Arguments
  • event_channel_capacity: Event broadcast channel capacity.
§Returns

Returns the builder for chaining.

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pub fn backpressure_config( self, backpressure_config: BackpressureConfig, ) -> Self

Sets the backpressure configuration.

§Arguments
  • backpressure_config: Backpressure configuration for event subscribers.
§Returns

Returns the builder for chaining.

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pub fn meltdown_policy(self, meltdown_policy: MeltdownPolicy) -> Self

Sets the meltdown policy.

§Arguments
  • meltdown_policy: Failure fuse policy.
§Returns

Returns the builder for chaining.

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pub fn failure_window_config( self, failure_window_config: FailureWindowConfig, ) -> Self

Sets the failure window configuration.

§Arguments
  • failure_window_config: Failure accumulation window configuration.
§Returns

Returns the builder for chaining.

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pub fn restart_budget_config( self, restart_budget_config: RestartBudgetConfig, ) -> Self

Sets the restart budget configuration.

§Arguments
  • restart_budget_config: Restart budget configuration.
§Returns

Returns the builder for chaining.

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pub fn pipeline_journal_capacity(self, pipeline_journal_capacity: usize) -> Self

Sets the event journal capacity used by the supervision pipeline.

§Arguments
  • pipeline_journal_capacity: Event journal capacity.
§Returns

Returns the builder for chaining.

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pub fn pipeline_subscriber_capacity( self, pipeline_subscriber_capacity: usize, ) -> Self

Sets the subscriber queue capacity used by the supervision pipeline.

§Arguments
  • pipeline_subscriber_capacity: Subscriber queue capacity.
§Returns

Returns the builder for chaining.

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pub fn concurrent_restart_limit(self, concurrent_restart_limit: u32) -> Self

Sets the concurrent restart limit.

§Arguments
  • concurrent_restart_limit: Maximum concurrent restarts for this supervisor.
§Returns

Returns the builder for chaining.

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pub fn metrics_enabled(self, metrics_enabled: bool) -> Self

Sets whether metrics recording is enabled.

§Arguments
  • metrics_enabled: Whether metrics recording is enabled.
§Returns

Returns the builder for chaining.

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pub fn audit_enabled(self, audit_enabled: bool) -> Self

Sets whether audit event recording is enabled.

§Arguments
  • audit_enabled: Whether audit event recording is enabled.
§Returns

Returns the builder for chaining.

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pub fn build(self) -> Result<SupervisorSpec, SupervisorError>

Builds and validates the supervisor specification.

§Arguments

This function has no arguments.

§Returns

Returns the constructed SupervisorSpec when local invariants pass.

§Errors

Returns SupervisorError when validation fails.

§Examples
use rust_supervisor::spec::supervisor_builder::SupervisorSpecBuilder;

let spec = SupervisorSpecBuilder::root(Vec::new())
    .config_version("demo")
    .build()?;
assert_eq!(spec.config_version, "demo");
ⓘ
use rust_supervisor::spec::supervisor::SupervisorSpec;
use rust_supervisor::spec::supervisor_builder::SupervisorSpecBuilder;

let builder = SupervisorSpecBuilder::root(Vec::new());
let _spec: SupervisorSpec = builder;

Trait Implementations§

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impl Clone for SupervisorSpecBuilder

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fn clone(&self) -> SupervisorSpecBuilder

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for SupervisorSpecBuilder

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

Formats the value using the given formatter. Read more

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