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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or .
 */
package org.hibernate.annotations;

import org.hibernate.tuple.UpdateTimestampGeneration;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * Marks a property as the update timestamp of the containing entity. The property value will be set to the current VM
 * date whenever the owning entity is updated.
 * 
 * Supported property types:
 * 

 * {@link java.util.Date}
 * {@link java.util.Calendar}
 * {@link java.sql.Date}
 * {@link java.sql.Time}
 * {@link java.sql.Timestamp}
 * {@link java.time.Instant}
 * {@link java.time.LocalDate}
 * {@link java.time.LocalDateTime}
 * {@link java.time.LocalTime}
 * {@link java.time.MonthDay}
 * {@link java.time.OffsetDateTime}
 * {@link java.time.OffsetTime}
 * {@link java.time.Year}
 * {@link java.time.YearMonth}
 * {@link java.time.ZonedDateTime}
 * 
 *
 * @author Gunnar Morling
 */
@ValueGenerationType(generatedBy = UpdateTimestampGeneration.class)
@Retention(RetentionPolicy.RUNTIME)
public @interface UpdateTimestamp {
}