Class Durations (3.19.4)

public final class Durations

Utilities to help create/manipulate protobuf/duration.proto. All operations throw an IllegalArgumentException if the input(s) are not valid.

Inheritance

java.lang.Object > Durations

Static Fields

MAX_VALUE

public static final Duration MAX_VALUE

A constant holding the maximum valid Duration, approximately +10,000 years.

Field Value
Type Description
Duration

MIN_VALUE

public static final Duration MIN_VALUE

A constant holding the minimum valid Duration, approximately -10,000 years.

Field Value
Type Description
Duration

ZERO

public static final Duration ZERO

A constant holding the duration of zero.

Field Value
Type Description
Duration

Static Methods

add(Duration d1, Duration d2)

public static Duration add(Duration d1, Duration d2)

Add two durations.

Parameters
Name Description
d1 Duration
d2 Duration
Returns
Type Description
Duration

checkNotNegative(Duration duration)

public static Duration checkNotNegative(Duration duration)

Ensures that the given Duration is not negative.

Parameter
Name Description
duration Duration
Returns
Type Description
Duration

checkPositive(Duration duration)

public static Duration checkPositive(Duration duration)

Ensures that the given Duration is positive.

Parameter
Name Description
duration Duration
Returns
Type Description
Duration

checkValid(Duration duration)

public static Duration checkValid(Duration duration)

Throws an IllegalArgumentException if the given Duration is not valid.

Parameter
Name Description
duration Duration
Returns
Type Description
Duration

checkValid(Duration.Builder durationBuilder)

public static Duration checkValid(Duration.Builder durationBuilder)

Builds the given builder and throws an IllegalArgumentException if it is not valid. See #checkValid(Duration).

Parameter
Name Description
durationBuilder Duration.Builder
Returns
Type Description
Duration

A valid, built Duration.

comparator()

public static Comparator<Duration> comparator()

Returns a Comparator for Durations which sorts in increasing chronological order. Nulls and invalid Durations are not allowed (see #isValid). The returned comparator is serializable.

Returns
Type Description
Comparator<Duration>

compare(Duration x, Duration y)

public static int compare(Duration x, Duration y)

Compares two durations. The value returned is identical to what would be returned by: Durations.comparator().compare(x, y).

Parameters
Name Description
x Duration
y Duration
Returns
Type Description
int

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

fromDays(long days)

public static Duration fromDays(long days)

Create a Duration from the number of days.

Parameter
Name Description
days long
Returns
Type Description
Duration

fromHours(long hours)

public static Duration fromHours(long hours)

Create a Duration from the number of hours.

Parameter
Name Description
hours long
Returns
Type Description
Duration

fromMicros(long microseconds)

public static Duration fromMicros(long microseconds)

Create a Duration from the number of microseconds.

Parameter
Name Description
microseconds long
Returns
Type Description
Duration

fromMillis(long milliseconds)

public static Duration fromMillis(long milliseconds)

Create a Duration from the number of milliseconds.

Parameter
Name Description
milliseconds long
Returns
Type Description
Duration

fromMinutes(long minutes)

public static Duration fromMinutes(long minutes)

Create a Duration from the number of minutes.

Parameter
Name Description
minutes long
Returns
Type Description
Duration

fromNanos(long nanoseconds)

public static Duration fromNanos(long nanoseconds)

Create a Duration from the number of nanoseconds.

Parameter
Name Description
nanoseconds long
Returns
Type Description
Duration

fromSeconds(long seconds)

public static Duration fromSeconds(long seconds)

Create a Duration from the number of seconds.

Parameter
Name Description
seconds long
Returns
Type Description
Duration

isNegative(Duration duration)

public static boolean isNegative(Duration duration)

Returns whether the given Duration is negative or not.

Parameter
Name Description
duration Duration
Returns
Type Description
boolean

isPositive(Duration duration)

public static boolean isPositive(Duration duration)

Returns whether the given Duration is positive or not.

Parameter
Name Description
duration Duration
Returns
Type Description
boolean

isValid(Duration duration)

public static boolean isValid(Duration duration)

Returns true if the given Duration is valid. The seconds value must be in the range [-315,576,000,000, +315,576,000,000]. The nanos value must be in the range [-999,999,999, +999,999,999].

Note: Durations less than one second are represented with a 0 seconds field and a positive or negative nanos field. For durations of one second or more, a non-zero value for the nanos field must be of the same sign as the seconds field.

Parameter
Name Description
duration Duration
Returns
Type Description
boolean

isValid(long seconds, int nanos)

public static boolean isValid(long seconds, int nanos)

Returns true if the given number of seconds and nanos is a valid Duration. The seconds value must be in the range [-315,576,000,000, +315,576,000,000]. The nanos value must be in the range [-999,999,999, +999,999,999].

Note: Durations less than one second are represented with a 0 seconds field and a positive or negative nanos field. For durations of one second or more, a non-zero value for the nanos field must be of the same sign as the seconds field.

Parameters
Name Description
seconds long
nanos int
Returns
Type Description
boolean

parse(String value)

public static Duration parse(String value)

Parse from a string to produce a duration.

Parameter
Name Description
value String
Returns
Type Description
Duration

A Duration parsed from the string.

Exceptions
Type Description
ParseException

if parsing fails.

parseUnchecked(String value)

public static Duration parseUnchecked(String value)

Parses a string in RFC 3339 format into a Duration.

Identical to #parse(String), but throws an IllegalArgumentException instead of a ParseException if parsing fails.

Parameter
Name Description
value String
Returns
Type Description
Duration

a Duration parsed from the string

subtract(Duration d1, Duration d2)

public static Duration subtract(Duration d1, Duration d2)

Subtract a duration from another.

Parameters
Name Description
d1 Duration
d2 Duration
Returns
Type Description
Duration

toDays(Duration duration)

public static long toDays(Duration duration)

Convert a Duration to the number of days. The result will be rounded towards 0 to the nearest day.

Parameter
Name Description
duration Duration
Returns
Type Description
long

toHours(Duration duration)

public static long toHours(Duration duration)

Convert a Duration to the number of hours. The result will be rounded towards 0 to the nearest hour.

Parameter
Name Description
duration Duration
Returns
Type Description
long

toMicros(Duration duration)

public static long toMicros(Duration duration)

Convert a Duration to the number of microseconds. The result will be rounded towards 0 to the nearest microseconds. E.g., if the duration represents -1 nanosecond, it will be rounded to 0.

Parameter
Name Description
duration Duration
Returns
Type Description
long

toMillis(Duration duration)

public static long toMillis(Duration duration)

Convert a Duration to the number of milliseconds. The result will be rounded towards 0 to the nearest millisecond. E.g., if the duration represents -1 nanosecond, it will be rounded to 0.

Parameter
Name Description
duration Duration
Returns
Type Description
long

toMinutes(Duration duration)

public static long toMinutes(Duration duration)

Convert a Duration to the number of minutes. The result will be rounded towards 0 to the nearest minute.

Parameter
Name Description
duration Duration
Returns
Type Description
long

toNanos(Duration duration)

public static long toNanos(Duration duration)

Convert a Duration to the number of nanoseconds.

Parameter
Name Description
duration Duration
Returns
Type Description
long

toSeconds(Duration duration)

public static long toSeconds(Duration duration)

Convert a Duration to the number of seconds. The result will be rounded towards 0 to the nearest second. E.g., if the duration represents -1 nanosecond, it will be rounded to 0.

Parameter
Name Description
duration Duration
Returns
Type Description
long

toSecondsAsDouble(Duration duration)

public static double toSecondsAsDouble(Duration duration)

Returns the number of seconds of the given duration as a double. This method should be used to accommodate APIs that only accept durations as double values.

This conversion may lose precision.

If you need the number of seconds in this duration as a long (not a double), simply use duration.getSeconds() or #toSeconds (which includes validation).

Parameter
Name Description
duration Duration
Returns
Type Description
double

toString(Duration duration)

public static String toString(Duration duration)

Convert Duration to string format. The string format will contains 3, 6, or 9 fractional digits depending on the precision required to represent the exact Duration value. For example: "1s", "1.010s", "1.000000100s", "-3.100s" The range that can be represented by Duration is from -315,576,000,000 to +315,576,000,000 inclusive (in seconds).

Parameter
Name Description
duration Duration
Returns
Type Description
String

The string representation of the given duration.