import { DBTable } from "./DBTable";
export interface DBChunkMeta<RowType> {
    tags?: DBTable<{
        value: string;
        count: number;
    }>;
    rowCount?: number;
    lastUpdate: number;
    indexes?: {
        [key: string]: any;
    };
}
export declare class DBChunk<RowType> {
    mask: boolean;
    protected meta?: DBChunkMeta<RowType>;
    protected filteredTable?: DBTable<RowType> | undefined;
    protected table?: DBTable<RowType>;
    constructor(table?: DBTable<RowType>);
    getColumnIndex(column: keyof RowType, updateIndexes?: boolean): Promise<any>;
    getColumnIndexes(columns: (keyof RowType)[], updateIndexes?: boolean): Promise<{
        [key: string]: any;
    }>;
    applyFilter(filter: (RowType: any) => boolean): Promise<void>;
    top(count: number): Promise<void>;
    skip(count: number): Promise<void>;
    /** Returns the metadata table behind this chunk */
    getMeta(): Promise<DBChunkMeta<RowType>>;
    touch(ms?: number): void;
    getFilteredRowCount(): Promise<number>;
    getRowCount(): Promise<number>;
    /** Returns the data rows behind this chunk */
    getData(): Promise<RowType[]>;
    /** Returns the data rows behind this chunk */
    getFilteredData(): Promise<RowType[]>;
    /** Returns the data rows behind this chunk */
    getFilteredDataTable(): Promise<DBTable<RowType>>;
    /** Returns the data rows behind this chunk */
    resetFilter(): void;
    /** Returns the data table behind this chunk */
    getDataTable(): Promise<DBTable<RowType>>;
    toJsonObject({ noData }?: {
        noData: boolean;
    }): Promise<{
        meta: {
            tags: {
                value: string;
                count: number;
            }[];
            rowCount?: number;
            lastUpdate: number;
        };
        data?: RowType[];
    }>;
    toJsonString(space?: number): Promise<string>;
    updateTagMetadata(): Promise<void>;
    updateCount(): Promise<void>;
}
//# sourceMappingURL=DBChunk.d.ts.map