@sap/odata-v4/lib/edm/Target.js

OData V4.0 server library

'use strict';

const FullQualifiedName = require('../FullQualifiedName');
const validateThat = require('../validator/ParameterValidator').validateThat;

/**
 * An Edm target element. It contains a target name ({@link EdmEntitySet} or {@link EdmSingleton})
 * as well as the FullQualifiedName} of the entity container it is contained in.
 * @hideconstructor
 */
class Target {

    /**
     * Constructor
     *
     * @param {string} target Target
     * @param {EdmEntityContainer} container Entity container
     */
    constructor(target, container) {
        validateThat('target', target).truthy().typeOf('string');
        validateThat('container', container).truthy();

        let bindingTargetParts = target.split('/');

        this._targetName = undefined;
        this._entityContainer = undefined;

        if (bindingTargetParts.length === 1) {
            this._entityContainer = container.getFullQualifiedName();
            this._targetName = bindingTargetParts[0];
        } else {
            this._entityContainer =
                FullQualifiedName.createFromNameSpaceAndName(bindingTargetParts[0]);
            this._targetName = bindingTargetParts[1];
        }
    }

    /**
     * @returns {string} name of the target as a String
     */
    getTargetName() {
        return this._targetName;
    }

    /**
     * @returns {FullQualifiedName} qualified name of the entity container this target is contained in
     */
    getEntityContainer() {
        return this._entityContainer;
    }


    toString() {
        if (this._entityContainer == null) {
            return this._targetName;
        }
        return this._entityContainer.toString() + '/' + this._targetName;
    }
}

module.exports = Target;