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

OData V4.0 server library

'use strict';

const AnnotationFactory = require('./AnnotationExpressionFactory');
const CsdlAnnotationExpression = require('../../csdl/annotationExpression/CsdlAnnotationExpression');
const EdmAnnotationExpression = require('./EdmAnnotationExpression');
const validateThat = require('../../validator/ParameterValidator').validateThat;

/**
 *
 * <a href="./../ODataSpecification/odata-v4.0-errata03-os/complete/part3-csdl/odata-v4.0-errata03-os-part3-csdl-complete.html#_Toc453752647">
 *     OData CSDL # 14.5.1 Comparison and Logical Operators
 * </a>
 *
 * @extends EdmAnnotationExpression
 * @hideconstructor
 */
class EdmNotExpression extends EdmAnnotationExpression {

    /**
     * @param {Edm} edm The edm itself
     * @param {CsdlNotExpression} notExpression
     */
    constructor(edm, notExpression) {
        validateThat('edm', edm).truthy();
        validateThat('notExpression', notExpression).truthy();

        super(CsdlAnnotationExpression.kinds.Not);

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

        /**
         * @type {CsdlNotExpression}
         * @private
         */
        this._notExpression = notExpression;

        /**
         * @type {EdmAnnotationExpression}
         * @private
         */
        this._expression = AnnotationFactory.createEdmExpressionFromCsdlExpression(edm, this._notExpression.expression);

        /**
         * @type {EdmAnnotation[]}
         * @private
         */
        this._annotations = null;
    }

    /**
     * Returns the expression to be negated
     *
     * @returns {EdmAnnotationExpression}
     */
    getExpression() {
        return this._expression;
    }

    /**
     * Returns the annotations for this expression
     *
     * @returns {EdmAnnotation[]}
     */
    getAnnotations() {
        if (!this._annotations) {
            this._annotations = this._notExpression.annotations.map(
                item => AnnotationFactory.createAnnotation(this._edm, item));
        }
        return this._annotations;
    }
}

module.exports = EdmNotExpression;