public void setGatewayType(String gatewayType) {
        this.gatewayType = gatewayType;
    }
<p>
A value that defines the type of gateway to activate. The type specified is critical to all later functions of
the gateway and cannot be changed after activation. The default value is <code>CACHED</code>.
</p>
<p>
Valid Values: <code>STORED</code> | <code>CACHED</code> | <code>VTL</code> | <code>FILE_S3</code> |
<code>FILE_FSX_SMB</code>
</p>

@param gatewayType
       A value that defines the type of gateway to activate. The type specified is critical to all later
       functions of the gateway and cannot be changed after activation. The default value is <code>CACHED</code>
       .</p>
       <p>
       Valid Values: <code>STORED</code> | <code>CACHED</code> | <code>VTL</code> | <code>FILE_S3</code> |
       <code>FILE_FSX_SMB</code>
aws-java-sdk-storagegateway/src/main/java/com/amazonaws/services/storagegateway/model/ActivateGatewayRequest.java