/**
 * Validation types.
 */
export class ValidationTypes {

    /* system */
    static CUSTOM_VALIDATION = "customValidation"; // done
    static NESTED_VALIDATION = "nestedValidation"; // done
    static PROMISE_VALIDATION = "promiseValidation"; // done
    static CONDITIONAL_VALIDATION = "conditionalValidation"; // done
    static WHITELIST = "whitelistValidation"; // done
    static IS_DEFINED = "isDefined"; // done

    /**
     * Checks if validation type is valid.
     */
    static isValid(type: string): boolean {
        return type !== "isValid" &&
            type !== "getMessage" &&
            Object.keys(this).map(key => (this as any)[key]).indexOf(type) !== -1;
    }

}