Java tutorial
/** * Copyright 2004-2009 Tobias Gierke <tobias.gierke@code-sourcery.de> * * 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 de.codesourcery.planning.demo; import org.apache.commons.lang.StringUtils; import de.codesourcery.planning.IResourceType; public class SampleResourceType implements IResourceType { private final String name; public SampleResourceType(String name) { if (StringUtils.isBlank(name)) { throw new IllegalArgumentException("name cannot be blank."); } this.name = name; } @Override public boolean equals(Object obj) { return (obj instanceof SampleResourceType) && ((SampleResourceType) obj).name.equals(this.name); } @Override public int hashCode() { return name.hashCode(); } @Override public String toString() { return name; } }