001/*
002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * 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
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 *
019 * $Id$
020 */
021
022package org.nuxeo.runtime.contribution;
023
024import java.util.Set;
025
026/**
027 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
028 */
029public interface Contribution<K, T> extends Iterable<T> {
030
031    ContributionRegistry<K, T> getRegistry();
032
033    K getId();
034
035    Set<Contribution<K, T>> getDependencies();
036
037    Set<Contribution<K, T>> getDependents();
038
039    Set<Contribution<K, T>> getUnresolvedDependencies();
040
041    void addFragment(T fragment, K... superKeys);
042
043    boolean removeFragment(T fragment);
044
045    T getValue();
046
047    int size();
048
049    boolean isEmpty();
050
051    T getFragment(int index);
052
053    boolean isResolved();
054
055    boolean isPhantom();
056
057    boolean isRegistered();
058
059    void unregister();
060
061    void resolve();
062
063    void unresolve();
064
065}