60 lines
1.4 KiB
TypeScript
60 lines
1.4 KiB
TypeScript
|
/**
|
||
|
|
* Dedicated index for tracking soft-deleted items
|
||
|
|
* This is MUCH more efficient than checking every item in the database
|
||
|
|
*
|
||
|
|
* Performance characteristics:
|
||
|
|
* - Add deleted item: O(1)
|
||
|
|
* - Remove deleted item: O(1)
|
||
|
|
* - Check if deleted: O(1)
|
||
|
|
* - Get all deleted: O(d) where d = number of deleted items << total items
|
||
|
|
*/
|
||
|
|
export declare class DeletedItemsIndex {
|
||
|
|
private deletedIds;
|
||
|
|
private deletedCount;
|
||
|
|
/**
|
||
|
|
* Mark an item as deleted
|
||
|
|
*/
|
||
|
|
markDeleted(id: string): void;
|
||
|
|
/**
|
||
|
|
* Mark an item as not deleted (restored)
|
||
|
|
*/
|
||
|
|
markRestored(id: string): void;
|
||
|
|
/**
|
||
|
|
* Check if an item is deleted - O(1)
|
||
|
|
*/
|
||
|
|
isDeleted(id: string): boolean;
|
||
|
|
/**
|
||
|
|
* Get all deleted item IDs - O(d)
|
||
|
|
*/
|
||
|
|
getAllDeleted(): string[];
|
||
|
|
/**
|
||
|
|
* Filter out deleted items from results - O(k) where k = result count
|
||
|
|
*/
|
||
|
|
filterDeleted<T extends {
|
||
|
|
id?: string;
|
||
|
|
}>(items: T[]): T[];
|
||
|
|
/**
|
||
|
|
* Get statistics
|
||
|
|
*/
|
||
|
|
getStats(): {
|
||
|
|
deletedCount: number;
|
||
|
|
memoryUsage: number;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Clear all deleted items (for testing)
|
||
|
|
*/
|
||
|
|
clear(): void;
|
||
|
|
/**
|
||
|
|
* Serialize for persistence
|
||
|
|
*/
|
||
|
|
serialize(): string;
|
||
|
|
/**
|
||
|
|
* Deserialize from persistence
|
||
|
|
*/
|
||
|
|
deserialize(data: string): void;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Global singleton for deleted items tracking
|
||
|
|
*/
|
||
|
|
export declare const deletedItemsIndex: DeletedItemsIndex;
|