Java tutorial
package uk.ac.ebi.spot.rdf.model; import com.google.common.collect.Sets; import org.apache.commons.lang3.StringUtils; import java.util.Iterator; import java.util.Objects; import java.util.Set; import static com.google.common.base.Preconditions.checkArgument; /* * Copyright 2008-2013 Microarray Informatics Team, EMBL-European Bioinformatics Institute * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * * For further details of the Gene Expression Atlas project, including source code, * downloads and documentation, please see: * * http://gxa.github.com/gxa */ public class AssayGroup implements Iterable<String> { private String id; private Set<String> assayAccessions; public AssayGroup(String id, String... assayAccessions) { checkArgument(StringUtils.isNotBlank(id)); this.id = id; this.assayAccessions = Sets.newHashSet(assayAccessions); } public Iterator<String> iterator() { return assayAccessions.iterator(); } public String getId() { return id; } public String getFirstAssayAccession() { return assayAccessions.iterator().next(); } @Override public int hashCode() { return Objects.hash(id, assayAccessions); } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null || getClass() != obj.getClass()) { return false; } final AssayGroup other = (AssayGroup) obj; return Objects.equals(this.id, other.id) && Objects.equals(this.assayAccessions, other.assayAccessions); } }