public String getDeploymentType() {
        return this.deploymentType;
    }
<p>
Specifies the way in which OpenSearch Service will apply an update. Possible values are:
</p>
<ul>
<li>
<p>
<b>Blue/Green</b> - The update requires a blue/green deployment.
</p>
</li>
<li>
<p>
<b>DynamicUpdate</b> - No blue/green deployment required
</p>
</li>
<li>
<p>
<b>Undetermined</b> - The domain is in the middle of an update and can't predict the deployment type. Try again
after the update is complete.
</p>
</li>
<li>
<p>
<b>None</b> - The request doesn't include any configuration changes.
</p>
</li>
</ul>

@return Specifies the way in which OpenSearch Service will apply an update. Possible values are:</p>
        <ul>
        <li>
        <p>
        <b>Blue/Green</b> - The update requires a blue/green deployment.
        </p>
        </li>
        <li>
        <p>
        <b>DynamicUpdate</b> - No blue/green deployment required
        </p>
        </li>
        <li>
        <p>
        <b>Undetermined</b> - The domain is in the middle of an update and can't predict the deployment type. Try
        again after the update is complete.
        </p>
        </li>
        <li>
        <p>
        <b>None</b> - The request doesn't include any configuration changes.
        </p>
        </li>
aws-java-sdk-opensearch/src/main/java/com/amazonaws/services/opensearch/model/DryRunResults.java