001/*
002 * Copyright 2020 Global Biodiversity Information Facility (GBIF)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.gbif.api.util.iterables;
017
018import org.gbif.api.model.common.paging.PagingRequest;
019import org.gbif.api.model.common.paging.PagingResponse;
020import org.gbif.api.model.registry.Dataset;
021import org.gbif.api.service.registry.DatasetService;
022
023import java.util.UUID;
024
025/**
026 * Iterates over all dataset constituents of a given super dataset.
027 */
028public class DatasetConstituentPager extends DatasetBasePager {
029
030    private final DatasetService service;
031    private final UUID datasetKey;
032
033    public DatasetConstituentPager(DatasetService service, UUID datasetKey, int pageSize) {
034        super(null, pageSize);
035        this.service = service;
036        this.datasetKey = datasetKey;
037    }
038
039    @Override
040    public PagingResponse<Dataset> nextPage(PagingRequest page) {
041        return service.listConstituents(datasetKey, page);
042    }
043
044}