/*
* 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.storage;
import com.graphhopper.util.PointAccess;
/**
* This interface specifies how to access properties of the nodes in the graph. Similar to
* EdgeExplorer as it needs multiple instances for different threads or loops but without the need
* for an additional iterator.
* <p>
*
* @author Peter Karich
*/
public interface NodeAccess extends PointAccess {
/**
* @return the additional value at the specified node index
* @throws AssertionError if, and only if, the extendedStorage does not require an additional
* node field
*/
int getAdditionalNodeField(int nodeId);
/**
* Sets the additional value at the specified node index
* <p>
*
* @throws AssertionError if, and only if, the extendedStorage does not require an additional
* node field
*/
void setAdditionalNodeField(int nodeId, int additionalValue);
}