public void setFileSystemArn(String fileSystemArn) {
        this.fileSystemArn = fileSystemArn;
    }
<p>
The Amazon Resource Name (ARN) for the EFS file system, in the format
<code>arn:aws:elasticfilesystem:<i>region</i>:<i>account-id</i>:file-system/<i>file-system-id</i> </code>.
Example with sample data:
<code>arn:aws:elasticfilesystem:us-west-2:1111333322228888:file-system/fs-01234567</code>
</p>

@param fileSystemArn
       The Amazon Resource Name (ARN) for the EFS file system, in the format
       <code>arn:aws:elasticfilesystem:<i>region</i>:<i>account-id</i>:file-system/<i>file-system-id</i> </code>.
       Example with sample data:
       <code>arn:aws:elasticfilesystem:us-west-2:1111333322228888:file-system/fs-01234567</code>
aws-java-sdk-efs/src/main/java/com/amazonaws/services/elasticfilesystem/model/FileSystemDescription.java