current/sdk/sdk_library/public/art.module.public.api_stub_sources/java/time/temporal/ChronoUnit.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 *
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/*
 * Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 *  * Neither the name of JSR-310 nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package java.time.temporal;

import java.time.Duration;

/**
 * A standard set of date periods units.
 * <p>
 * This set of units provide unit-based access to manipulate a date, time or date-time.
 * The standard set of units can be extended by implementing {@link java.time.temporal.TemporalUnit TemporalUnit}.
 * <p>
 * These units are intended to be applicable in multiple calendar systems.
 * For example, most non-ISO calendar systems define units of years, months and days,
 * just with slightly different rules.
 * The documentation of each unit explains how it operates.
 *
 * @implSpec
 * This is a final, immutable and thread-safe enum.
 *
 * @since 1.8
 */

@SuppressWarnings({"unchecked", "deprecation", "all"})
public enum ChronoUnit implements java.time.temporal.TemporalUnit {
/**
 * Unit that represents the concept of a nanosecond, the smallest supported unit of time.
 * For the ISO calendar system, it is equal to the 1,000,000,000th part of the second unit.
 */

NANOS,
/**
 * Unit that represents the concept of a microsecond.
 * For the ISO calendar system, it is equal to the 1,000,000th part of the second unit.
 */

MICROS,
/**
 * Unit that represents the concept of a millisecond.
 * For the ISO calendar system, it is equal to the 1000th part of the second unit.
 */

MILLIS,
/**
 * Unit that represents the concept of a second.
 * For the ISO calendar system, it is equal to the second in the SI system
 * of units, except around a leap-second.
 */

SECONDS,
/**
 * Unit that represents the concept of a minute.
 * For the ISO calendar system, it is equal to 60 seconds.
 */

MINUTES,
/**
 * Unit that represents the concept of an hour.
 * For the ISO calendar system, it is equal to 60 minutes.
 */

HOURS,
/**
 * Unit that represents the concept of half a day, as used in AM/PM.
 * For the ISO calendar system, it is equal to 12 hours.
 */

HALF_DAYS,
/**
 * Unit that represents the concept of a day.
 * For the ISO calendar system, it is the standard day from midnight to midnight.
 * The estimated duration of a day is {@code 24 Hours}.
 * <p>
 * When used with other calendar systems it must correspond to the day defined by
 * the rising and setting of the Sun on Earth. It is not required that days begin
 * at midnight - when converting between calendar systems, the date should be
 * equivalent at midday.
 */

DAYS,
/**
 * Unit that represents the concept of a week.
 * For the ISO calendar system, it is equal to 7 days.
 * <p>
 * When used with other calendar systems it must correspond to an integral number of days.
 */

WEEKS,
/**
 * Unit that represents the concept of a month.
 * For the ISO calendar system, the length of the month varies by month-of-year.
 * The estimated duration of a month is one twelfth of {@code 365.2425 Days}.
 * <p>
 * When used with other calendar systems it must correspond to an integral number of days.
 */

MONTHS,
/**
 * Unit that represents the concept of a year.
 * For the ISO calendar system, it is equal to 12 months.
 * The estimated duration of a year is {@code 365.2425 Days}.
 * <p>
 * When used with other calendar systems it must correspond to an integral number of days
 * or months roughly equal to a year defined by the passage of the Earth around the Sun.
 */

YEARS,
/**
 * Unit that represents the concept of a decade.
 * For the ISO calendar system, it is equal to 10 years.
 * <p>
 * When used with other calendar systems it must correspond to an integral number of days
 * and is normally an integral number of years.
 */

DECADES,
/**
 * Unit that represents the concept of a century.
 * For the ISO calendar system, it is equal to 100 years.
 * <p>
 * When used with other calendar systems it must correspond to an integral number of days
 * and is normally an integral number of years.
 */

CENTURIES,
/**
 * Unit that represents the concept of a millennium.
 * For the ISO calendar system, it is equal to 1000 years.
 * <p>
 * When used with other calendar systems it must correspond to an integral number of days
 * and is normally an integral number of years.
 */

MILLENNIA,
/**
 * Unit that represents the concept of an era.
 * The ISO calendar system doesn't have eras thus it is impossible to add
 * an era to a date or date-time.
 * The estimated duration of the era is artificially defined as {@code 1,000,000,000 Years}.
 * <p>
 * When used with other calendar systems there are no restrictions on the unit.
 */

ERAS,
/**
 * Artificial unit that represents the concept of forever.
 * This is primarily used with {@link java.time.temporal.TemporalField TemporalField} to represent unbounded fields
 * such as the year or era.
 * The estimated duration of the era is artificially defined as the largest duration
 * supported by {@code Duration}.
 */

FOREVER;

/**
 * Gets the estimated duration of this unit in the ISO calendar system.
 * <p>
 * All of the units in this class have an estimated duration.
 * Days vary due to daylight saving time, while months have different lengths.
 *
 * @return the estimated duration of this unit, not null
 */

public java.time.Duration getDuration() { throw new RuntimeException("Stub!"); }

/**
 * Checks if the duration of the unit is an estimate.
 * <p>
 * All time units in this class are considered to be accurate, while all date
 * units in this class are considered to be estimated.
 * <p>
 * This definition ignores leap seconds, but considers that Days vary due to
 * daylight saving time and months have different lengths.
 *
 * @return true if the duration is estimated, false if accurate
 */

public boolean isDurationEstimated() { throw new RuntimeException("Stub!"); }

/**
 * Checks if this unit is a date unit.
 * <p>
 * All units from days to eras inclusive are date-based.
 * Time-based units and {@code FOREVER} return false.
 *
 * @return true if a date unit, false if a time unit
 */

public boolean isDateBased() { throw new RuntimeException("Stub!"); }

/**
 * Checks if this unit is a time unit.
 * <p>
 * All units from nanos to half-days inclusive are time-based.
 * Date-based units and {@code FOREVER} return false.
 *
 * @return true if a time unit, false if a date unit
 */

public boolean isTimeBased() { throw new RuntimeException("Stub!"); }

public boolean isSupportedBy(java.time.temporal.Temporal temporal) { throw new RuntimeException("Stub!"); }

public <R extends java.time.temporal.Temporal> R addTo(R temporal, long amount) { throw new RuntimeException("Stub!"); }

public long between(java.time.temporal.Temporal temporal1Inclusive, java.time.temporal.Temporal temporal2Exclusive) { throw new RuntimeException("Stub!"); }

public java.lang.String toString() { throw new RuntimeException("Stub!"); }
}