public String getDomain() {
        return this.domain;
    }
<p>
The domain in which to allocate the address.
</p>
<p>
If the address is for use with EC2 instances in a VPC, then <code>Domain</code> is <code>vpc</code>. Otherwise,
<code>Domain</code> is <code>standard</code>.
</p>

@return The domain in which to allocate the address.</p>
        <p>
        If the address is for use with EC2 instances in a VPC, then <code>Domain</code> is <code>vpc</code>.
        Otherwise, <code>Domain</code> is <code>standard</code>.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsEc2EipDetails.java