public String getActivationKey() {
        return this.activationKey;
    }
<p>
Your gateway activation key. You can obtain the activation key by sending an HTTP GET request with redirects
enabled to the gateway IP address (port 80). The redirect URL returned in the response provides you the
activation key for your gateway in the query string parameter <code>activationKey</code>. It may also include
other activation-related parameters, however, these are merely defaults -- the arguments you pass to the
<code>ActivateGateway</code> API call determine the actual configuration of your gateway.
</p>
<p>
For more information, see <a
href="https://docs.aws.amazon.com/storagegateway/latest/userguide/get-activation-key.html">Getting activation
key</a> in the <i>Storage Gateway User Guide</i>.
</p>

@return Your gateway activation key. You can obtain the activation key by sending an HTTP GET request with
        redirects enabled to the gateway IP address (port 80). The redirect URL returned in the response provides
        you the activation key for your gateway in the query string parameter <code>activationKey</code>. It may
        also include other activation-related parameters, however, these are merely defaults -- the arguments you
        pass to the <code>ActivateGateway</code> API call determine the actual configuration of your gateway.</p>
        <p>
        For more information, see <a
        href="https://docs.aws.amazon.com/storagegateway/latest/userguide/get-activation-key.html">Getting
        activation key</a> in the <i>Storage Gateway User Guide</i>.
aws-java-sdk-storagegateway/src/main/java/com/amazonaws/services/storagegateway/model/ActivateGatewayRequest.java