
001/* 002 * #%L 003 * HAPI FHIR - Core Library 004 * %% 005 * Copyright (C) 2014 - 2023 Smile CDR, Inc. 006 * %% 007 * Licensed under the Apache License, Version 2.0 (the "License"); 008 * you may not use this file except in compliance with the License. 009 * You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 * #L% 019 */ 020package ca.uhn.fhir.rest.gclient; 021 022import org.hl7.fhir.instance.model.api.IBaseResource; 023 024import ca.uhn.fhir.rest.server.exceptions.NotModifiedException; 025 026public interface IReadIfNoneMatch<T extends IBaseResource> { 027 028 /** 029 * If the server responds with an <code>HTTP 301 Not Modified</code>, 030 * return the given instance. 031 */ 032 IReadExecutable<T> returnResource(T theInstance); 033 034 /** 035 * If the server responds with an <code>HTTP 301 Not Modified</code>, 036 * return <code>null</code>. 037 */ 038 IReadExecutable<T> returnNull(); 039 040 /** 041 * If the server responds with an <code>HTTP 301 Not Modified</code>, 042 * throw a {@link NotModifiedException}. 043 */ 044 IReadExecutable<T> throwNotModifiedException(); 045 046}