src/share/classes/java/sql/Timestamp.java

Print this page


   1 /*
   2  * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 573                                 getMonth() + 1,
 574                                 getDate(),
 575                                 getHours(),
 576                                 getMinutes(),
 577                                 getSeconds(),
 578                                 getNanos());
 579     }
 580 
 581     /**
 582      * Obtains an instance of {@code Timestamp} from an {@link Instant} object.
 583      * <p>
 584      * {@code Instant} can store points on the time-line further in the future
 585      * and further in the past than {@code Date}. In this scenario, this method
 586      * will throw an exception.
 587      *
 588      * @param instant  the instant to convert
 589      * @return an {@code Timestamp} representing the same point on the time-line as
 590      *  the provided instant
 591      * @exception NullPointerException if {@code instant} is null.
 592      * @exception IllegalArgumentException if the instant is too large to
 593      *  represent as a {@code Timesamp}
 594      * @since 1.8
 595      */
 596     public static Timestamp from(Instant instant) {
 597         try {
 598             Timestamp stamp = new Timestamp(instant.getEpochSecond() * MILLIS_PER_SECOND);
 599             stamp.nanos = instant.getNano();
 600             return stamp;
 601         } catch (ArithmeticException ex) {
 602             throw new IllegalArgumentException(ex);
 603         }
 604     }
 605 
 606     /**
 607      * Converts this {@code Timestamp} object to an {@code Instant}.
 608      * <p>
 609      * The conversion creates an {@code Instant} that represents the same
 610      * point on the time-line as this {@code Timestamp}.
 611      *
 612      * @return an instant representing the same point on the time-line
 613      * @since 1.8
   1 /*
   2  * Copyright (c) 1996, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 573                                 getMonth() + 1,
 574                                 getDate(),
 575                                 getHours(),
 576                                 getMinutes(),
 577                                 getSeconds(),
 578                                 getNanos());
 579     }
 580 
 581     /**
 582      * Obtains an instance of {@code Timestamp} from an {@link Instant} object.
 583      * <p>
 584      * {@code Instant} can store points on the time-line further in the future
 585      * and further in the past than {@code Date}. In this scenario, this method
 586      * will throw an exception.
 587      *
 588      * @param instant  the instant to convert
 589      * @return an {@code Timestamp} representing the same point on the time-line as
 590      *  the provided instant
 591      * @exception NullPointerException if {@code instant} is null.
 592      * @exception IllegalArgumentException if the instant is too large to
 593      *  represent as a {@code Timestamp}
 594      * @since 1.8
 595      */
 596     public static Timestamp from(Instant instant) {
 597         try {
 598             Timestamp stamp = new Timestamp(instant.getEpochSecond() * MILLIS_PER_SECOND);
 599             stamp.nanos = instant.getNano();
 600             return stamp;
 601         } catch (ArithmeticException ex) {
 602             throw new IllegalArgumentException(ex);
 603         }
 604     }
 605 
 606     /**
 607      * Converts this {@code Timestamp} object to an {@code Instant}.
 608      * <p>
 609      * The conversion creates an {@code Instant} that represents the same
 610      * point on the time-line as this {@code Timestamp}.
 611      *
 612      * @return an instant representing the same point on the time-line
 613      * @since 1.8