public String getDirectoryArn() {
        return this.directoryArn;
    }
<p>
The Amazon Resource Name (ARN) of the directory the index and object exist in.
</p>

@return The Amazon Resource Name (ARN) of the directory the index and object exist in.
aws-java-sdk-clouddirectory/src/main/java/com/amazonaws/services/clouddirectory/model/DetachFromIndexRequest.java