001/*
002 * $Header: /cvshome/build/org.osgi.service.obr/src/org/osgi/service/obr/Requirement.java,v 1.4 2006/03/16 14:56:17 hargrave Exp $
003 *
004 * Copyright (c) OSGi Alliance (2006). All Rights Reserved.
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the License at
009 *
010 *      http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019// This document is an experimental draft to enable interoperability
020// between bundle repositories. There is currently no commitment to 
021// turn this draft into an official specification.  
022package org.osgi.service.obr;
023
024/**
025 * A named requirement specifies the need for certain capabilities with the same
026 * name.
027 * 
028 * @version $Revision: 1.4 $
029 */
030public interface Requirement
031{
032
033    /**
034     * Return the name of the requirement.
035     */
036    String getName();
037
038    /**
039     * Return the filter.
040     * 
041     */
042    String getFilter();
043
044    boolean isMultiple();
045
046    boolean isOptional();
047
048    boolean isExtend();
049
050    String getComment();
051
052    boolean isSatisfied(Capability capability);
053}