public String getUsage() {
        return this.usage;
    }
<p>
Specifies how this certificate is used. It can be used in the following ways:
</p>
<ul>
<li>
<p>
<code>SIGNING</code>: For signing AS2 messages
</p>
</li>
<li>
<p>
<code>ENCRYPTION</code>: For encrypting AS2 messages
</p>
</li>
<li>
<p>
<code>TLS</code>: For securing AS2 communications sent over HTTPS
</p>
</li>
</ul>

@return Specifies how this certificate is used. It can be used in the following ways:</p>
        <ul>
        <li>
        <p>
        <code>SIGNING</code>: For signing AS2 messages
        </p>
        </li>
        <li>
        <p>
        <code>ENCRYPTION</code>: For encrypting AS2 messages
        </p>
        </li>
        <li>
        <p>
        <code>TLS</code>: For securing AS2 communications sent over HTTPS
        </p>
        </li>
@see CertificateUsageType
aws-java-sdk-transfer/src/main/java/com/amazonaws/services/transfer/model/ImportCertificateRequest.java