001/*
002 *    GeoAPI - Java interfaces for OGC/ISO standards
003 *    Copyright © 2018-2023 Open Geospatial Consortium, Inc.
004 *    http://www.geoapi.org
005 *
006 *    Licensed under the Apache License, Version 2.0 (the "License");
007 *    you may not use this file except in compliance with the License.
008 *    You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *    Unless required by applicable law or agreed to in writing, software
013 *    distributed under the License is distributed on an "AS IS" BASIS,
014 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 *    See the License for the specific language governing permissions and
016 *    limitations under the License.
017 */
018package org.opengis.feature;
019
020import org.opengis.annotation.UML;
021import org.opengis.annotation.Stereotype;
022import org.opengis.annotation.Classifier;
023
024import static org.opengis.annotation.Specification.OGC_MOVING_FEATURE;
025
026
027/**
028 * Definition of a dynamic attribute in a moving feature type.
029 * Dynamic attributes describe attributes of a feature in which the values vary with time and/or location.
030 * A {@link Feature} having dynamic attributes is a moving feature.
031 * A moving feature can have an arbitrary number of time-varying attributes,
032 * such as the velocity of vehicles or the wind speed of hurricanes.
033 *
034 * <p>Dynamic attributes are used for non-spatial attribute.
035 * If the value type of a dynamic attribute is geometric point, it is a trajectory.</p>
036 *
037 * @param <V> the type of attribute values.
038 *
039 * @author  Martin Desruisseaux (Geomatys)
040 * @version 3.1
041 * @since   3.1
042 *
043 * @see DynamicAttribute
044 * @see AttributeType
045 */
046@Classifier(Stereotype.METACLASS)
047@UML(identifier="DynamicAttributeType", specification=OGC_MOVING_FEATURE)
048public interface DynamicAttributeType<V> extends AttributeType<V> {
049    /**
050     * Creates a new attribute instance of this type.
051     *
052     * @return a new dynamic attribute instance.
053     * @throws UnsupportedOperationException if this type does not support new instance creation.
054     */
055    @Override
056    DynamicAttribute<V> newInstance() throws UnsupportedOperationException;
057}