Java tutorial
/* * Copyright 2013 The musicbrainz-data Authors * * 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 fm.last.musicbrainz.data.model; import java.io.Serializable; import org.apache.commons.lang3.builder.EqualsBuilder; import org.apache.commons.lang3.builder.HashCodeBuilder; class ReleaseCountryCompositeKey implements Serializable { private static final long serialVersionUID = 23052013L; int release; int country; @Override public int hashCode() { return new HashCodeBuilder(2305, 2013).append(release).append(country).toHashCode(); } @Override public boolean equals(Object object) { if (object == null) { return false; } if (object == this) { return true; } if (object.getClass() != getClass()) { return false; } ReleaseCountryCompositeKey rhs = (ReleaseCountryCompositeKey) object; return new EqualsBuilder().append(release, rhs.release).append(country, rhs.country).isEquals(); } }