Java tutorial
/* * 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. */ package ca.cutterslade.match.scheduler; import java.io.Serializable; import java.util.Set; import com.google.common.collect.ImmutableSet; public final class Court implements Serializable { /** * 1 */ private static final long serialVersionUID = 1L; private final String name; private final Gym gym; static ImmutableSet<Court> forNames(Set<String> names, Set<Gym> gyms) { ImmutableSet.Builder<Court> b = ImmutableSet.builder(); for (Gym gym : gyms) for (String name : names) b.add(new Court(name, gym)); return b.build(); } Court(String name, Gym gym) { if (null == name) throw new IllegalArgumentException("name may not be null"); if (null == gym) throw new IllegalArgumentException("gym may not be null"); this.name = name; this.gym = gym; } public String getName() { return name; } public Gym getGym() { return gym; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + gym.hashCode(); result = prime * result + name.hashCode(); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; Court other = (Court) obj; if (!gym.equals(other.gym)) return false; if (!name.equals(other.name)) return false; return true; } @Override public String toString() { return "Court [gym=" + gym + ", name=" + name + "]"; } }