/******************************************************************************* * Copyright 2014 Analog Devices, Inc. * * 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 com.analog.lyric.collect; import org.eclipse.jdt.annotation.Nullable; /** * Simple interface for element with an inherent key. * * @since 0.05 * @author Christopher Barber * @see KeyedPriorityQueue */ public interface IKeyed<K> { /** * Returns key for this element. */ public @Nullable K getKey(); }