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.persistence.ocfl.api; 019 020 021/** 022 * An interface representing index rebuilding capabilities. Any index state that can be derived from the underlying OCFL 023 * repository must be regenerated by the implementing class. 024 * 025 * repository 026 * @author dbernstein 027 * @since 6.0.0 028 */ 029public interface IndexBuilder { 030 031 /** 032 * Rebuilds the index only when the existing index is not populated. 033 */ 034 void rebuildIfNecessary(); 035 036} 037