Java tutorial
/** * Licensed to the Hummingbird Foundation (HF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The HF 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 org.hbird.business.archive.converters; import org.apache.commons.math3.geometry.euclidean.threed.Vector3D; import org.springframework.core.convert.converter.Converter; import com.mongodb.DBObject; public class Vector3DConverter implements Converter<DBObject, Vector3D> { @Override public Vector3D convert(DBObject obj) { double x = (Double) obj.get("x"); double y = (Double) obj.get("y"); double z = (Double) obj.get("z"); return new Vector3D(x, y, z); } }