/**
 * Weaviate Adapter
 *
 * Vector database adapter for Weaviate.
 * https://weaviate.io/
 */
import { VectorDBType, VectorFeature, IVectorConnectionResult, IUpsertVectorsOptions, IUpsertVectorsResult, IQueryVectorsOptions, IQueryVectorsResult, IFetchVectorsOptions, IFetchVectorsResult, IUpdateVectorOptions, IUpdateVectorResult, IDeleteVectorsOptions, IDeleteVectorsResult, IListVectorsOptions, IListVectorsResult, IListNamespacesResult, IVectorIndexInfo, ICreateIndexOptions, ICreateIndexResult, IDeleteIndexOptions, IDeleteIndexResult, IVectorIndexStats } from '../types';
import { BaseVectorAdapter, IAdapterConnectionOptions } from './base.adapter';
/**
 * Weaviate adapter implementation
 */
export declare class WeaviateAdapter extends BaseVectorAdapter {
    readonly type = VectorDBType.WEAVIATE;
    private apiKey;
    private baseUrl;
    private className;
    private timeout;
    connect(options: IAdapterConnectionOptions): Promise<IVectorConnectionResult>;
    disconnect(): Promise<void>;
    testConnection(): Promise<boolean>;
    upsert(options: IUpsertVectorsOptions): Promise<IUpsertVectorsResult>;
    query(options: IQueryVectorsOptions): Promise<IQueryVectorsResult>;
    fetch(options: IFetchVectorsOptions): Promise<IFetchVectorsResult>;
    update(options: IUpdateVectorOptions): Promise<IUpdateVectorResult>;
    delete(options: IDeleteVectorsOptions): Promise<IDeleteVectorsResult>;
    list(options: IListVectorsOptions): Promise<IListVectorsResult>;
    listNamespaces(): Promise<IListNamespacesResult>;
    deleteNamespace(namespace: string): Promise<void>;
    describeIndex(): Promise<IVectorIndexInfo>;
    getIndexStats(): Promise<IVectorIndexStats>;
    createIndex(options: ICreateIndexOptions): Promise<ICreateIndexResult>;
    deleteIndex(options: IDeleteIndexOptions): Promise<IDeleteIndexResult>;
    listIndexes(): Promise<IVectorIndexInfo[]>;
    supportsFeature(feature: VectorFeature): boolean;
    /**
     * Ensure the Weaviate class (schema) exists, creating it if necessary
     */
    private ensureClassExists;
    /**
     * Make REST request
     */
    private request;
    /**
     * Make GraphQL request
     */
    private graphql;
    /**
     * Convert filter to Weaviate format
     */
    private convertFilter;
    /**
     * Convert single filter
     */
    private convertSingleFilter;
    /**
     * Extract properties from Weaviate result (excluding _additional)
     */
    private extractProperties;
    /**
     * Map Weaviate distance to our enum
     */
    private mapWeaviateMetric;
    /**
     * Map our enum to Weaviate distance
     */
    private mapToWeaviateMetric;
}
export default WeaviateAdapter;