    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    }