001/*
002 * Licensed to DuraSpace under one or more contributor license agreements.
003 * See the NOTICE file distributed with this work for additional information
004 * regarding copyright ownership.
005 *
006 * DuraSpace licenses this file to you under the Apache License,
007 * Version 2.0 (the "License"); you may not use this file except in
008 * compliance with the License.  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 */
018package org.fcrepo.kernel.api.services.policy;
019
020import org.fcrepo.kernel.api.models.FedoraResource;
021
022/**
023 * A binary storage policy definition and evaluation machinery
024 * @author cbeer
025 * @since Apr 25, 2013
026 */
027public interface StoragePolicy {
028
029    /**
030     * Evaluate the policy; if the policy matches, return the
031     * binary storage hint. If not, return null.
032     * @param resource the resource
033     * @return the binary storage hint
034     */
035    String evaluatePolicy(final FedoraResource resource);
036}