add licence and javadoc
+/*
+ * Copyright 2006-2020 The MZmine Development Team
+ *
+ * This file is part of MZmine.
+ *
+ * MZmine is free software; you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License as published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * MZmine is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with MZmine; if not,
+ * write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+ * USA
+ */
+
package io.github.mzmine.datamodel.featuredata.impl;
import io.github.mzmine.datamodel.MassSpectrum;
import java.util.List;
+/**
+ * Package-private tag interface to access the original, modifiable spectra list of an {@link
+ * SimpleIonMobilitySeries} when it is used to create an {@link StorableIonMobilitySeries}. The
+ * generation of numerous immutable list wrappers is therefore circumvented in this package private
+ * interface.
+ *
+ * @param <T>
+ * @author https://github.com/SteffenHeu
+ */
interface ModifiableSpectra<T extends MassSpectrum> {
List<T> getSpectraModifiable();
