PersistNotificationUtils

Utility class for managing notification persistence.

Features:

• Memoized storage instances
• Custom adapter support
• Atomic read/write operations for NotificationData
• Each notification stored as separate file keyed by id
• Crash-safe notification state management

Used by NotificationPersistLiveUtils/NotificationPersistBacktestUtils for persistence.

Constructor

constructor();
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Properties

PersistNotificationInstanceCtor

PersistNotificationInstanceCtor: any
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Constructor used to create per-mode notification instances. Replaceable via usePersistNotificationAdapter() / useJson() / useDummy().

getNotificationStorage

getNotificationStorage: any
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Memoized factory creating one IPersistNotificationInstance per mode (backtest/live). Key: "backtest" or "live".

readNotificationData

readNotificationData: (backtest: boolean) => Promise<NotificationData>
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Reads persisted notifications for the given mode. Lazily initializes the instance on first access.

writeNotificationData

writeNotificationData: (notificationData: NotificationData, backtest: boolean) => Promise<void>
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Writes notifications for the given mode. Lazily initializes the instance on first access.

Methods

usePersistNotificationAdapter

usePersistNotificationAdapter(Ctor: TPersistNotificationInstanceCtor): void;
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Registers a custom IPersistNotificationInstance constructor. Clears the memoization cache so subsequent calls use the new adapter.

clear

clear(): void;
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Clears the memoized instance cache. Call when process.cwd() changes between strategy iterations so new instances are created with the updated base path.

useJson

useJson(): void;
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Switches to the default file-based PersistNotificationInstance.

useDummy

useDummy(): void;
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Switches to PersistNotificationDummyInstance (all operations are no-ops).