001/*
002 * #%L
003 * HAPI FHIR Storage api
004 * %%
005 * Copyright (C) 2014 - 2025 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.jpa.api.dao;
021
022import ca.uhn.fhir.jpa.searchparam.SearchParameterMap;
023import ca.uhn.fhir.rest.api.server.IBundleProvider;
024import ca.uhn.fhir.rest.api.server.RequestDetails;
025import jakarta.servlet.http.HttpServletResponse;
026import org.hl7.fhir.instance.model.api.IBaseResource;
027
028public interface IFhirResourceDaoObservation<T extends IBaseResource> extends IFhirResourceDao<T> {
029
030        /**
031         * Returns a BundleProvider which can be used to implement the $lastn operation.
032         *
033         * @param paramMap           Parameters supported include Observation.subject, Observation.patient, Observation.code,
034         *                           Observation.category, and max (the maximum number of Observations to return per specified subjects/patients,
035         *                           codes, and/or categories.
036         * @param theRequestDetails
037         * @param theServletResponse
038         * @return
039         */
040        IBundleProvider observationsLastN(
041                        SearchParameterMap paramMap, RequestDetails theRequestDetails, HttpServletResponse theServletResponse);
042}