Java SQL LocalDate asUtilDate(Object date, ZoneId zone)

Description

Creates a java.util.Date from various date objects.

License

Apache License

Parameter

Parameter	Description
zone	Time zone, used only if the input object is LocalDate or LocalDateTime.

Return

(exactly this class, not a subclass, such as java.sql.Date)

Declaration

public static java.util.Date asUtilDate(Object date, ZoneId zone) 

Method Source Code

//package com.java2s;
/*//  w w w .  j av  a  2  s.c om
 * Copyright 2016 berni.
 *
 * Licensed 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.
 */

import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;

public class Main {
    /**
     * Calls {@link #asUtilDate(Object, ZoneId)} with the system default time
     * zone.
     */
    public static java.util.Date asUtilDate(Object date) {
        return asUtilDate(date, ZoneId.systemDefault());
    }

    /**
     * Creates a {@link java.util.Date} from various date objects. Is null-safe.
     * Currently supports:<ul>
     * <li>{@link java.util.Date}
     * <li>{@link java.sql.Date}
     * <li>{@link java.sql.Timestamp}
     * <li>{@link java.time.LocalDate}
     * <li>{@link java.time.LocalDateTime}
     * <li>{@link java.time.ZonedDateTime}
     * <li>{@link java.time.Instant}
     * </ul>
     *
     * @param zone Time zone, used only if the input object is LocalDate or
     * LocalDateTime.
     *
     * @return {@link java.util.Date} (exactly this class, not a subclass, such
     * as java.sql.Date)
     */
    public static java.util.Date asUtilDate(Object date, ZoneId zone) {
        if (date == null) {
            return null;
        }

        if (date instanceof java.sql.Date || date instanceof java.sql.Timestamp) {
            return new java.util.Date(((java.util.Date) date).getTime());
        }
        if (date instanceof java.util.Date) {
            return (java.util.Date) date;
        }
        if (date instanceof LocalDate) {
            return java.util.Date.from(((LocalDate) date).atStartOfDay(zone).toInstant());
        }
        if (date instanceof LocalDateTime) {
            return java.util.Date.from(((LocalDateTime) date).atZone(zone).toInstant());
        }
        if (date instanceof ZonedDateTime) {
            return java.util.Date.from(((ZonedDateTime) date).toInstant());
        }
        if (date instanceof Instant) {
            return java.util.Date.from((Instant) date);
        }

        throw new UnsupportedOperationException(
                "Don't know hot to convert " + date.getClass().getName() + " to java.util.Date");
    }
}

Related

1. addDays(final Date date, final int daysToAdd)
2. asLocalDate(Date date)
3. asLocalDate(Date date)
4. asLocalDate(java.util.Date date, ZoneId zone)
5. asUtilDate(Object date)
6. convertLocalDateToDatabaseDate(LocalDate localDate)
7. getDay(Date date)
8. getLastDate()
9. getLocalDate()