001// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
002//
003// SPDX-License-Identifier: Apache-2.0
004
005package org.pgpainless.util.selection.keyring;
006
007import java.util.Set;
008
009import org.pgpainless.util.MultiMap;
010
011public interface KeyRingSelectionStrategy<R, C, O> {
012
013    boolean accept(O identifier, R keyRing);
014
015    Set<R> selectKeyRingsFromCollection(O identifier, C keyRingCollection);
016
017    MultiMap<O, R> selectKeyRingsFromCollections(MultiMap<O, C> keyRingCollections);
018}