FieldGNSSDate.java

/* Copyright 2022-2025 Thales Alenia Space
 * Licensed to CS GROUP (CS) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * CS 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.orekit.time;

import org.hipparchus.CalculusFieldElement;
import org.hipparchus.Field;

/** Container for date in GNSS form.
 * @author Luc Maisonobe
 * @param <T> type of the field elements
 * @see GNSSDate
 * @since 14.0
 */
public class FieldGNSSDate<T extends CalculusFieldElement<T>>
    implements FieldTimeStamped<T> {

    /** Underlying regular date. */
    private final GNSSDate gnssDate;

    /** Field date. */
    private final FieldAbsoluteDate<T> fieldDate;

    /** Build an instance from a GNSSDate.
     * @param field used by default
     * @param gnssDate GNSSDate to instantiate as a FieldGNSSDate
     */
    public FieldGNSSDate(final Field<T> field, final GNSSDate gnssDate) {
        this.gnssDate  = gnssDate;
        this.fieldDate = new FieldAbsoluteDate<>(gnssDate.getDate(), field.getZero());
    }

    /** Get the underlying GNSS date.
     * @return underlying GNSS date
     */
    public GNSSDate getGnssDate() {
        return gnssDate;
    }

    /** {@inheritDoc} */
    public FieldAbsoluteDate<T> getDate() {
        return fieldDate;
    }

}