public StackDriftInformationSummary getDriftInformation() {
        return this.driftInformation;
    }
<p>
Summarizes information about whether a stack's actual configuration differs, or has <i>drifted</i>, from its
expected configuration, as defined in the stack template and any values specified as template parameters. For
more information, see <a
href="https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-stack-drift.html">Detecting
Unregulated Configuration Changes to Stacks and Resources</a>.
</p>

@return Summarizes information about whether a stack's actual configuration differs, or has <i>drifted</i>, from
        its expected configuration, as defined in the stack template and any values specified as template
        parameters. For more information, see <a
        href="https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-stack-drift.html"
        >Detecting Unregulated Configuration Changes to Stacks and Resources</a>.
aws-java-sdk-cloudformation/src/main/java/com/amazonaws/services/cloudformation/model/StackSummary.java