001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.commons.math3.util;
018    
019    import org.apache.commons.math3.Field;
020    import org.apache.commons.math3.FieldElement;
021    
022    /**
023     * The field of double precision floating-point numbers.
024     *
025     * @since 3.1
026     * @version $Id: Decimal64Field.java 1306177 2012-03-28 05:40:46Z celestin $
027     * @see Decimal64
028     */
029    public class Decimal64Field implements Field<Decimal64> {
030    
031        /** The unique instance of this class. */
032        private static final Decimal64Field INSTANCE = new Decimal64Field();
033    
034        /** Default constructor. */
035        private Decimal64Field() {
036            // Do nothing
037        }
038    
039        /**
040         * Returns the unique instance of this class.
041         *
042         * @return the unique instance of this class
043         */
044        public static final Decimal64Field getInstance() {
045            return INSTANCE;
046        }
047    
048        /** {@inheritDoc} */
049        public Decimal64 getZero() {
050            return Decimal64.ZERO;
051        }
052    
053        /** {@inheritDoc} */
054        public Decimal64 getOne() {
055            return Decimal64.ONE;
056        }
057    
058        /** {@inheritDoc} */
059        public Class<? extends FieldElement<Decimal64>> getRuntimeClass() {
060            return Decimal64.class;
061        }
062    }