private EntityAliases[] interpretEntityAliases(List<Return> customQueryReturns) {
	final List<EntityAliases> entityAliases = new ArrayList<>();
	for ( Return queryReturn : customQueryReturns ) {
		if ( !RootReturn.class.isInstance( queryReturn ) ) {
			continue;
		}

		entityAliases.add( ( (RootReturn) queryReturn ).getEntityAliases() );
	}

	if ( entityAliases.isEmpty() ) {
		return NO_ALIASES;
	}

	return entityAliases.toArray( new EntityAliases[ entityAliases.size() ] );
}
 

private static CustomLoaderExtension buildSpecializedCustomLoader(final ResultContext context) {
	// might be better to just manually construct the Return(s).. SQLQueryReturnProcessor does a lot of
	// work that is really unnecessary here.
	final SQLQueryReturnProcessor processor = new SQLQueryReturnProcessor(
			context.getQueryReturns(),
			context.getSession().getFactory()
	);
	processor.process();
	final List<org.hibernate.loader.custom.Return> customReturns = processor.generateCallableReturns();

	CustomQuery customQuery = new CustomQuery() {
		@Override
		public String getSQL() {
			return context.getSql();
		}

		@Override
		public Set<String> getQuerySpaces() {
			return context.getSynchronizedQuerySpaces();
		}

		@Override
		public List<ParameterBinder> getParameterValueBinders() {
			// no parameters in terms of embedded in the SQL string
			return Collections.emptyList();
		}

		@Override
		public List<org.hibernate.loader.custom.Return> getCustomQueryReturns() {
			return customReturns;
		}
	};

	return new CustomLoaderExtension(
			customQuery,
			context.getQueryParameters(),
			context.getSession()
	);
}