code: /**
   * Copyright (C) 2015-2016, BMW Car IT GmbH and BMW AG
   * Author: Stefan Holder (stefan.holder@bmw.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 com.graphhopper.matching;
  
  import java.util.Collection;
  
  public class ObservationWithCandidateStates {
  
      /**
       * Observation made at this time step.
       */
      public final Observation observation;
  
      /**
       * State candidates at this time step.
       */
      public final Collection<State> candidates;
  
      public ObservationWithCandidateStates(Observation observation, Collection<State> candidates) {
          if (observation == null || candidates == null) {
              throw new NullPointerException("observation and candidates must not be null.");
          }
          this.observation = observation;
          this.candidates = candidates;
      }
  
  }
  