/**
* Get all reference bases in this context. The results are cached in this object for future
* queries. Will always return an empty array if there is no backing data source and/or interval
* to query.
*
* <p>Call {@link #setWindow} before calling this method if you want to configure the amount of
* extra reference context to include around the current interval
*
* @return reference bases in this context, as a byte array
*/
public byte[] getBases() {
if (dataSource == null || window == null) {
return new byte[0];
}
// Only perform a query if we haven't fetched the bases in this context previously
if (cachedSequence == null) {
cachedSequence = dataSource.queryAndPrefetch(window);
}
return cachedSequence.getBases();
}
