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.base.Function; import com.google.common.collect.Collections2; import com.google.common.collect.ImmutableSet; public final class Day implements Serializable { /** * 1 */ private static final long serialVersionUID = 1L; private final String name; static ImmutableSet<Day> forNames(Set<String> days) { return ImmutableSet.copyOf(Collections2.transform(days, new Function<String, Day>() { @Override public Day apply(String name) { return new Day(name); } })); } Day(String name) { if (null == name) throw new IllegalArgumentException("name may not be null"); this.name = name; } public String getName() { return name; } @Override public int hashCode() { final int prime = 31; int result = 1; 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; Day other = (Day) obj; if (!name.equals(other.name)) return false; return true; } @Override public String toString() { return "Day [name=" + name + "]"; } }