/**
* INTERNAL: Return the lowlevel database accessor. The database accessor is used for direct
* database access. The right accessor for this broker will be returned.
*/
public Accessor getAccessor(Class domainClass) {
if (domainClass == null) {
// CR#... this occurs if a data query is used without a session-name, needs to throw an error
throw QueryException.unnamedQueryOnSessionBroker(null);
}
// session may be a broker too. Eventually a non session broker wil be found
return getSessionForClass(domainClass).getAccessor(domainClass);
}
/** INTERNAL: Answers the session to be used for the given query. */
protected AbstractSession getSessionForQuery(DatabaseQuery query) {
if (query.hasSessionName()) {
return getSessionForName(query.getSessionName());
}
Class queryClass;
if (query.getDescriptor() != null) {
queryClass = query.getDescriptor().getJavaClass();
} else {
queryClass = query.getReferenceClass();
if (queryClass == null) {
throw QueryException.unnamedQueryOnSessionBroker(query);
}
}
return getSessionForClass(queryClass);
}
/**
* INTERNAL: Possible for future development, not currently supported.
*
* <p>Retrieve the value through using batch reading. This executes a single query to read the
* target for all of the objects and stores the result of the batch query in the original query to
* allow the other objects to share the results.
*/
@Override
protected Object batchedValueFromRow(AbstractRecord row, ReadAllQuery query) {
throw QueryException.batchReadingNotSupported(this, query);
}