@sap/odata-v4/lib/edm/annotationExpression/EdmCollectionExpression.js

OData V4.0 server library

'use strict';

const AnnotationFactory = require('./AnnotationExpressionFactory');
const CsdlAnnotationExpression = require('../../csdl/annotationExpression/CsdlAnnotationExpression');
const EdmAnnotationExpression = require('./EdmAnnotationExpression');
const IllegalArgumentError = require('../../errors/IllegalArgumentError');

/**
 *
 * <a href="./../ODataSpecification/odata-v4.0-errata03-os/complete/part3-csdl/odata-v4.0-errata03-os-part3-csdl-complete.html#_Toc453752651">
 *     OData CSDL # 14.5.5 Expression edm:Collection
 * </a>
 *
 * @extends EdmAnnotationExpression
 * @hideconstructor
 */
class EdmCollectionExpression extends EdmAnnotationExpression {

    /**
     * @param {Edm} edm The edm itself
     * @param {CsdlCollectionExpression} collection
     */
    constructor(edm, collection) {
        if (!edm) {
            throw IllegalArgumentError.createForIllegalInstance('edm', 'Edm');
        }
        if (!collection) {
            throw IllegalArgumentError.createForIllegalInstance('collection', 'CsdlCollectionExpression');
        }

        super(CsdlAnnotationExpression.kinds.Collection);

        /**
         * @type {Edm}
         * @private
         */
        this._edm = edm;

        /**
         * @type {EdmAnnotationExpression[]}
         * @private
         */
        this._expressions = [];

        for (let item of collection.expressions) {
            const element = AnnotationFactory.createEdmExpressionFromCsdlExpression(this._edm, item);
            this._expressions.push(element);
        }
    }

    /**
     * Return the expressions which make up the collection
     *
     * @returns {EdmAnnotationExpression[]}
     */
    getExpressions() {
        return this._expressions;
    }
}

module.exports = EdmCollectionExpression;