import { PlainObject } from '@xh/hoist/core';
import { AggregationContext, Aggregator, AverageAggregator, AverageStrictAggregator, ChildCountAggregator, Field, FieldSpec, LeafCountAggregator, MaxAggregator, MinAggregator, NullAggregator, SingleAggregator, SumAggregator, SumStrictAggregator, UniqueAggregator } from '@xh/hoist/data';
export interface CubeFieldSpec extends FieldSpec {
    /** Instance of a Hoist Cube {@link Aggregator} or string token alias for one. */
    aggregator?: Aggregator | AggregatorToken;
    /** Function to determine if aggregation should be performed at a given level of a query result. */
    canAggregateFn?: CanAggregateFn;
    /** True if any further groupings below this dimension would be derivative (have only one member). */
    isLeafDimension?: boolean;
    /**
     * Name of field that is a 'parent' dimension of this dimension. This marks this dimension as a
     * sub-dimension of the parent dimension (e.g. 'asset group' and 'asset'). This allows the view
     * to skip creating derivative nodes when a parent node has a single identical child node.
     */
    parentDimension?: string;
}
/** Convenient (and serializable) alias for one of Hoist's Cube {@link Aggregator} classes. */
export type AggregatorToken = 'AVG' | 'AVG_STRICT' | 'CHILD_COUNT' | 'LEAF_COUNT' | 'MAX' | 'MIN' | 'NULL' | 'SINGLE' | 'SUM' | 'SUM_STRICT' | 'UNIQUE';
/**
 * @param dimension - dimension of aggregation
 * @param value - value of record on dimension
 * @param appliedDims - *all* applied dimension values for this record
 * @param context - current aggregation context
 */
export type CanAggregateFn = (dimension: string, value: any, appliedDims: PlainObject, context: AggregationContext) => boolean;
/**
 * Metadata used to define a measure or dimension in Cube. For properties present on raw data source
 * objects to be included in a Cube, the Cube must be configured with a matching Field that tells
 * it to extract the data from the source objects and how to aggregate or filter on that data.
 *
 * @mcpHint field with aggregation metadata for use within a Cube
 */
export declare class CubeField extends Field {
    aggregator: Aggregator;
    canAggregateFn: CanAggregateFn;
    isLeafDimension: boolean;
    parentDimension: string;
    static averageAggregator: AverageAggregator;
    static averageStrictAggregator: AverageStrictAggregator;
    static childCountAggregator: ChildCountAggregator;
    static leafCountAggregator: LeafCountAggregator;
    static maxAggregator: MaxAggregator;
    static minAggregator: MinAggregator;
    static nullAggregator: NullAggregator;
    static singleAggregator: SingleAggregator;
    static sumAggregator: SumAggregator;
    static sumStrictAggregator: SumStrictAggregator;
    static uniqueAggregator: UniqueAggregator;
    constructor({ aggregator, canAggregateFn, isLeafDimension, parentDimension, ...fieldArgs }: CubeFieldSpec);
    private parseAggregator;
}