Vaadin Calendar is available for download from Vaadin Directory and from a Maven repository. Installing the add-on is the same as with Vaadin add-ons in general, so please refer to Chapter 15, Using Vaadin Add-ons. Vaadin Calendar includes a widget set, which you need to compile to your project widget set.
When downloading the Vaadin Calendar add-on from Vaadin Directory, you need to choose the license.
Vaadin Calendar is a commercial product licensed under a dual-licensing scheme. The AGPL (GNU Affero General Public License) allows open-source development, while the CVAL (Commercial Vaadin Add-On License) needs to be purchased for closed-source use, including web deployments and internal use. With the CVAL license, you have a free 30-day trial period for evaluating the product.
Commercial licenses can be purchased from the Vaadin Directory, where you can also find the license details and download the Vaadin Calendar.