/* * Licensed to GraphHopper GmbH under one or more contributor * license agreements. See the NOTICE file distributed with this work for * additional information regarding copyright ownership. * * GraphHopper GmbH licenses this file to you 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.graphhopper.routing.util; /** * @author Peter Karich */ public abstract class AbstractAlgoPreparation { private boolean prepared = false; public void doWork() { if (prepared) throw new IllegalStateException("Call doWork only once!"); prepared = true; } public boolean isPrepared() { return prepared; } }