@sap/odata-v4/lib/uri/apply/AggregateTransformation.js

OData V4.0 server library

'use strict';

const Transformation = require('./Transformation');

/**
 * Aggregate transformation, consisting of aggregate expressions.
 *
 * @extends Transformation
 * @hideconstructor
 */
class AggregateTransformation extends Transformation {
    constructor() {
        super(Transformation.TransformationKind.AGGREGATE);

        this._expressions = [];
    }

    /**
     * Return the aggregate expressions.
     * @returns {AggregateExpression[]} the aggregate expressions
     */
    getExpressions() {
        return this._expressions;
    }

    /**
     * Add an aggregate expression.
     * @param {AggregateExpression} expression the aggregate expression
     * @returns {AggregateTransformation} this aggregate transformation
     * @package
     */
    addExpression(expression) {
        this._expressions.push(expression);
        return this;
    }
}

module.exports = AggregateTransformation;