/**
 * @nahisaho/yata-scale - Index Manager
 *
 * Manages all indexes for a shard
 */
import { type Result } from 'neverthrow';
import type { IndexConfig, IndexStats, Entity, Relationship } from '../types.js';
import { IndexError, IndexNotFoundError } from '../errors.js';
import { GraphIndex } from './GraphIndex.js';
import { BloomFilter } from './BloomFilter.js';
/**
 * Index manager for coordinating multiple indexes
 */
export declare class IndexManager {
    private indexes;
    private entityIndex;
    private bloomFilter;
    private graphIndex;
    constructor();
    /**
     * Create a new index
     */
    createIndex(config: IndexConfig): Result<void, IndexError>;
    /**
     * Create index by type
     */
    private createIndexByType;
    /**
     * Drop an index
     */
    dropIndex(name: string): Result<void, IndexNotFoundError>;
    /**
     * Index an entity
     */
    indexEntity(entity: Entity): void;
    /**
     * Index entity in a custom index
     */
    private indexEntityInCustomIndex;
    /**
     * Remove entity from indexes
     */
    removeEntity(entityId: string): void;
    /**
     * Remove entity from custom index
     */
    private removeEntityFromCustomIndex;
    /**
     * Index a relationship
     */
    indexRelationship(relationship: Relationship): void;
    /**
     * Remove a relationship from indexes
     */
    removeRelationship(relationshipId: string): void;
    /**
     * Check if entity might exist (using bloom filter)
     */
    mightExist(entityId: string): boolean;
    /**
     * Get entity by ID
     */
    getEntity(entityId: string): Entity | undefined;
    /**
     * Search by attribute using B+Tree index
     */
    searchByAttribute(indexName: string, value: string): Result<string[], IndexNotFoundError>;
    /**
     * Full-text search
     */
    searchFullText(indexName: string, query: string, limit?: number): Result<string[], IndexNotFoundError>;
    /**
     * Get graph index
     */
    getGraphIndex(): GraphIndex;
    /**
     * Get bloom filter
     */
    getBloomFilter(): BloomFilter;
    /**
     * Extract key from entity for indexing
     */
    private extractKey;
    /**
     * Extract text content for full-text indexing
     */
    private extractTextContent;
    /**
     * Get all index statistics
     */
    getAllStats(): IndexStats[];
    /**
     * Clear all indexes
     */
    clear(): void;
    /**
     * Get entity count
     */
    get entityCount(): number;
    /**
     * Get relationship count
     */
    get relationshipCount(): number;
}
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