public FileSystemDescription withOwnerId(String ownerId) {
        setOwnerId(ownerId);
        return this;
    }
<p>
The Amazon Web Services account that created the file system.
</p>

@param ownerId
       The Amazon Web Services account that created the file system.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-efs/src/main/java/com/amazonaws/services/elasticfilesystem/model/FileSystemDescription.java