public String getIndexName() {
        return this.indexName;
    }
<p>
The dynamic thing group index to update.
</p>
<note>
<p>
Currently one index is supported: <code>AWS_Things</code>.
</p>
</note>

@return The dynamic thing group index to update.</p> <note>
        <p>
        Currently one index is supported: <code>AWS_Things</code>.
        </p>
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/UpdateDynamicThingGroupRequest.java