org.hipparchus.util.Decimal64Field Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.
*/
/*
* This is not the original file distributed by the Apache Software Foundation
* It has been modified by the Hipparchus project
*/
package org.hipparchus.util;
import java.io.Serializable;
import org.hipparchus.Field;
import org.hipparchus.FieldElement;
/**
* The field of double precision floating-point numbers.
*
* @see Decimal64
*/
public class Decimal64Field implements Field, Serializable {
/** Serializable version identifier */
private static final long serialVersionUID = 20161219L;
/** Default constructor. */
private Decimal64Field() {
// Do nothing
}
/**
* Returns the unique instance of this class.
*
* @return the unique instance of this class
*/
public static final Decimal64Field getInstance() {
return LazyHolder.INSTANCE;
}
/** {@inheritDoc} */
@Override
public Decimal64 getZero() {
return Decimal64.ZERO;
}
/** {@inheritDoc} */
@Override
public Decimal64 getOne() {
return Decimal64.ONE;
}
/** {@inheritDoc} */
@Override
public Class> getRuntimeClass() {
return Decimal64.class;
}
/** {@inheritDoc} */
@Override
public boolean equals(final Object other) {
return this == other;
}
/** {@inheritDoc} */
@Override
public int hashCode() {
return 0x0a04d2bf;
}
// CHECKSTYLE: stop HideUtilityClassConstructor
/** Holder for the instance.
* We use here the Initialization On Demand Holder Idiom.
*/
private static class LazyHolder {
/** Cached field instance. */
private static final Decimal64Field INSTANCE = new Decimal64Field();
}
// CHECKSTYLE: resume HideUtilityClassConstructor
/** Handle deserialization of the singleton.
* @return the singleton instance
*/
private Object readResolve() {
// return the singleton instance
return LazyHolder.INSTANCE;
}
}