001/* -*- mode: Java; c-basic-offset: 2; indent-tabs-mode: nil; coding: utf-8-unix -*-
002 *
003 * Copyright © 2023 microBean™.
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
006 * the License.  You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
011 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the
012 * specific language governing permissions and limitations under the License.
013 */
014package org.microbean.qualifier;
015
016import java.util.Collection;
017
018/**
019 * An interface whose implementations have affiliated {@link NamedAttributeMap} instances.
020 *
021 * @author <a href="https://about.me/lairdnelson" target="_parent">Laird Nelson</a>
022 */
023public interface AttributeBearing<V> {
024
025  /**
026   * Returns the affiliated {@link NamedAttributeMap} instances.
027   *
028   * <p>Implementations of this method must not return {@code null}.
029   *
030   * @return the affiliated {@link NamedAttributeMap} instances; never {@code null}
031   */
032  public Collection<NamedAttributeMap<V>> attributes();
033
034}