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 */
017package org.apache.commons.math4.util;
018
019import org.apache.commons.math4.Field;
020import org.apache.commons.math4.FieldElement;
021
022/**
023 * The field of double precision floating-point numbers.
024 *
025 * @since 3.1
026 * @see Decimal64
027 */
028public class Decimal64Field implements Field<Decimal64> {
029
030    /** The unique instance of this class. */
031    private static final Decimal64Field INSTANCE = new Decimal64Field();
032
033    /** Default constructor. */
034    private Decimal64Field() {
035        // Do nothing
036    }
037
038    /**
039     * Returns the unique instance of this class.
040     *
041     * @return the unique instance of this class
042     */
043    public static final Decimal64Field getInstance() {
044        return INSTANCE;
045    }
046
047    /** {@inheritDoc} */
048    @Override
049    public Decimal64 getZero() {
050        return Decimal64.ZERO;
051    }
052
053    /** {@inheritDoc} */
054    @Override
055    public Decimal64 getOne() {
056        return Decimal64.ONE;
057    }
058
059    /** {@inheritDoc} */
060    @Override
061    public Class<? extends FieldElement<Decimal64>> getRuntimeClass() {
062        return Decimal64.class;
063    }
064}