var CSS_FORM_CONTROL = A.getClassName('form', 'control'),
                                CSS_CELLEDITOR_ELEMENT = A.getClassName('celleditor', 'element'),
                                DropDownCellEditor;
                            
                            /**
                             * DropDownCellEditor class.
                             *
                             * @class A.DropDownCellEditor
                             * @extends A.BaseOptionsCellEditor
                             * @param {Object} config Object literal specifying widget configuration
                             * properties.
                             * @constructor
                             */
                            DropDownCellEditor = A.Component.create({
                            
                                /**
                                 * Static property provides a string to identify the class.
                                 *
                                 * @property NAME
                                 * @type String
                                 * @static
                                 */
                                NAME: 'dropDownCellEditor',
                            
                                /**
                                 * Static property used to define the default attribute
                                 * configuration for the `DropDownCellEditor`.
                                 *
                                 * @property ATTRS
                                 * @type Object
                                 * @static
                                 */
                                ATTRS: {
                            
                                    /**
                                     * Indicates whether or not multiple options are selectable.
                                     *
                                     * @attribute multiple
                                     * @default false
                                     * @type Boolean
                                     */
                                    multiple: {
                                        value: false,
                                        validator: A.Lang.isBoolean
                                    }
                                },
                            
                                /**
                                 * Static property used to define which component it extends.
                                 *
                                 * @property EXTENDS
                                 * @type Object
                                 * @static
                                 */
                                EXTENDS: A.BaseOptionsCellEditor,
                            
                                /**
                                 * Static property used to define the UI attributes.
                                 *
                                 * @property UI_ATTRS
                                 * @type Array
                                 * @static
                                 */
                                UI_ATTRS: ['multiple'],
                            
                                prototype: {
                                    ELEMENT_TEMPLATE: '<select class="' + [CSS_CELLEDITOR_ELEMENT, CSS_FORM_CONTROL].join(' ') + '"></select>',
                            
                                    OPTION_TEMPLATE: '<option value="{value}">{label}</option>',
                            
                                    /**
                                     * Get the input value.
                                     *
                                     * @method getElementsValue
                                     * @return {String} Input value.
                                     */
                                    getElementsValue: function() {
                                        var instance = this;
                            
                                        if (instance.get('multiple')) {
                                            return instance._getSelectedOptions().get('value');
                                        }
                            
                                        return instance.elements.get('value');
                                    },
                            
                                    /**
                                     * Syncs the element focus.
                                     *
                                     * @method _syncElementsFocus
                                     * @protected
                                     */
                                    _syncElementsFocus: function() {
                                        var instance = this;
                            
                                        instance.elements.focus();
                                    },
                            
                                    /**
                                     * Set the `multiple` attribute in the UI.
                                     *
                                     * @method _uiSetMultiple
                                     * @param val
                                     * @protected
                                     */
                                    _uiSetMultiple: function(val) {
                                        var instance = this;
                                        var elements = instance.elements;
                            
                                        if (val) {
                                            elements.setAttribute('multiple', 'multiple');
                                        }
                                        else {
                                            elements.removeAttribute('multiple');
                                        }
                                    }
                                }
                            });
                            
                            A.DropDownCellEditor = DropDownCellEditor;