presto-record-decoder/src/main/java/io/prestosql/decoder/DispatchingRowDecoderFactory.java/DispatchingRowDecoderFactory/DispatchingRowDecoderFactory
class DispatchingRowDecoderFactory:    @Inject
    public DispatchingRowDecoderFactory(Map<String, RowDecoderFactory> factories)
    {
        this.factories = ImmutableMap.copyOf(factories);
    }