Java tutorial
/* * Copyright 2014, by Benjamin Bertin and Contributors. * * This file is part of CarbonDB-reasoner project <http://www.carbondb.org> * * CarbonDB-reasoner is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * CarbonDB-reasoner is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with CarbonDB-reasoner. If not, see <http://www.gnu.org/licenses/>. * * Contributor(s): - * */ package com.mycsense.carbondb.domain; import org.apache.commons.lang3.builder.EqualsBuilder; import org.apache.commons.lang3.builder.HashCodeBuilder; import java.util.HashSet; import java.util.TreeSet; public abstract class SingleElement { public TreeSet<Keyword> keywords; protected String id; protected Unit unit; protected HashSet<Group> groups; public SingleElement() { keywords = new TreeSet<>(); } public SingleElement(Dimension keywords, Unit unit) { this.keywords = new TreeSet<>(keywords.keywords); this.unit = unit; groups = new HashSet<>(); } public SingleElement(TreeSet<Keyword> keywords, Unit unit) { this.keywords = new TreeSet<>(keywords); this.unit = unit; groups = new HashSet<>(); } public String getId() { if (null == id) { if (this instanceof Process) { id = "sp/"; } else { id = "sc/"; } for (Keyword keyword : keywords) { id += keyword.getId().replace("k/", "") + "+"; } id += unit.getId().replace("u/", ""); } return id; } public void setId(String id) { this.id = id; } public Unit getUnit() { return unit; } public void setUnit(Unit unit) { this.unit = unit; } public String toString() { return keywords + " (" + unit.getSymbol() + " )"; } public TreeSet<Keyword> getKeywords() { return keywords; } public HashSet<Group> getGroups() { return groups; } public void addGroup(Group group) { for (Group otherGroup : groups) { otherGroup.addOverlapingGroup(group); group.addOverlapingGroup(otherGroup); } groups.add(group); } @Override public boolean equals(Object obj) { // Alternative: use Guava (from Google) if (!(obj instanceof SingleElement)) return false; if (obj == this) return true; SingleElement rhs = (SingleElement) obj; return new EqualsBuilder().append(keywords, rhs.keywords).append(unit, rhs.unit).isEquals(); } @Override public int hashCode() { return new HashCodeBuilder(3, 67).append(keywords).append(unit).toHashCode(); } }