Package com.google.protobuf
Class Timestamp.Builder
- java.lang.Object
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- com.google.protobuf.AbstractMessageLite.Builder<MessageType,BuilderType>
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- com.google.protobuf.GeneratedMessageLite.Builder<Timestamp,Timestamp.Builder>
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- com.google.protobuf.Timestamp.Builder
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- All Implemented Interfaces:
MessageLite.Builder
,MessageLiteOrBuilder
,TimestampOrBuilder
,java.lang.Cloneable
- Enclosing class:
- Timestamp
public static final class Timestamp.Builder extends GeneratedMessageLite.Builder<Timestamp,Timestamp.Builder> implements TimestampOrBuilder
A Timestamp represents a point in time independent of any time zone or local calendar, encoded as a count of seconds and fractions of seconds at nanosecond resolution. The count is relative to an epoch at UTC midnight on January 1, 1970, in the proleptic Gregorian calendar which extends the Gregorian calendar backwards to year one. All minutes are 60 seconds long. Leap seconds are "smeared" so that no leap second table is needed for interpretation, using a [24-hour linear smear](https://developers.google.com/time/smear). The range is from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. By restricting to that range, we ensure that we can convert to and from [RFC 3339](https://www.ietf.org/rfc/rfc3339.txt) date strings. # Examples Example 1: Compute Timestamp from POSIX `time()`. Timestamp timestamp; timestamp.set_seconds(time(NULL)); timestamp.set_nanos(0); Example 2: Compute Timestamp from POSIX `gettimeofday()`. struct timeval tv; gettimeofday(&tv, NULL); Timestamp timestamp; timestamp.set_seconds(tv.tv_sec); timestamp.set_nanos(tv.tv_usec * 1000); Example 3: Compute Timestamp from Win32 `GetSystemTimeAsFileTime()`. FILETIME ft; GetSystemTimeAsFileTime(&ft); UINT64 ticks = (((UINT64)ft.dwHighDateTime) << 32) | ft.dwLowDateTime; // A Windows tick is 100 nanoseconds. Windows epoch 1601-01-01T00:00:00Z // is 11644473600 seconds before Unix epoch 1970-01-01T00:00:00Z. Timestamp timestamp; timestamp.set_seconds((INT64) ((ticks / 10000000) - 11644473600LL)); timestamp.set_nanos((INT32) ((ticks % 10000000) * 100)); Example 4: Compute Timestamp from Java `System.currentTimeMillis()`. long millis = System.currentTimeMillis(); Timestamp timestamp = Timestamp.newBuilder().setSeconds(millis / 1000) .setNanos((int) ((millis % 1000) * 1000000)).build(); Example 5: Compute Timestamp from Java `Instant.now()`. Instant now = Instant.now(); Timestamp timestamp = Timestamp.newBuilder().setSeconds(now.getEpochSecond()) .setNanos(now.getNano()).build(); Example 6: Compute Timestamp from current time in Python. timestamp = Timestamp() timestamp.GetCurrentTime() # JSON Mapping In JSON format, the Timestamp type is encoded as a string in the [RFC 3339](https://www.ietf.org/rfc/rfc3339.txt) format. That is, the format is "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z" where {year} is always expressed using four digits while {month}, {day}, {hour}, {min}, and {sec} are zero-padded to two digits each. The fractional seconds, which can go up to 9 digits (i.e. up to 1 nanosecond resolution), are optional. The "Z" suffix indicates the timezone ("UTC"); the timezone is required. A proto3 JSON serializer should always use UTC (as indicated by "Z") when printing the Timestamp type and a proto3 JSON parser should be able to accept both UTC and other timezones (as indicated by an offset). For example, "2017-01-15T01:30:15.01Z" encodes 15.01 seconds past 01:30 UTC on January 15, 2017. In JavaScript, one can convert a Date object to this format using the standard [toISOString()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString) method. In Python, a standard `datetime.datetime` object can be converted to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime) with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one can use the Joda Time's [`ISODateTimeFormat.dateTime()`]( http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime%2D%2D ) to obtain a formatter capable of generating timestamps in this format.
Protobuf typegoogle.protobuf.Timestamp
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Nested Class Summary
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Nested classes/interfaces inherited from class com.google.protobuf.AbstractMessageLite.Builder
AbstractMessageLite.Builder.LimitedInputStream
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Field Summary
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Fields inherited from class com.google.protobuf.GeneratedMessageLite.Builder
instance
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Constructor Summary
Constructors Modifier Constructor Description private
Builder()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Timestamp.Builder
clearNanos()
Non-negative fractions of a second at nanosecond resolution.Timestamp.Builder
clearSeconds()
Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z.int
getNanos()
Non-negative fractions of a second at nanosecond resolution.long
getSeconds()
Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z.Timestamp.Builder
setNanos(int value)
Non-negative fractions of a second at nanosecond resolution.Timestamp.Builder
setSeconds(long value)
Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z.-
Methods inherited from class com.google.protobuf.GeneratedMessageLite.Builder
build, buildPartial, clear, clone, copyOnWrite, copyOnWriteInternal, getDefaultInstanceForType, internalMergeFrom, isInitialized, mergeFrom, mergeFrom, mergeFrom, mergeFrom
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Methods inherited from class com.google.protobuf.AbstractMessageLite.Builder
addAll, addAll, mergeDelimitedFrom, mergeDelimitedFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, newUninitializedMessageException
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Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.google.protobuf.MessageLiteOrBuilder
getDefaultInstanceForType, isInitialized
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Method Detail
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getSeconds
public long getSeconds()
Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z inclusive.
int64 seconds = 1;
- Specified by:
getSeconds
in interfaceTimestampOrBuilder
- Returns:
- The seconds.
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setSeconds
public Timestamp.Builder setSeconds(long value)
Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z inclusive.
int64 seconds = 1;
- Parameters:
value
- The seconds to set.- Returns:
- This builder for chaining.
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clearSeconds
public Timestamp.Builder clearSeconds()
Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z inclusive.
int64 seconds = 1;
- Returns:
- This builder for chaining.
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getNanos
public int getNanos()
Non-negative fractions of a second at nanosecond resolution. Negative second values with fractions must still have non-negative nanos values that count forward in time. Must be from 0 to 999,999,999 inclusive.
int32 nanos = 2;
- Specified by:
getNanos
in interfaceTimestampOrBuilder
- Returns:
- The nanos.
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setNanos
public Timestamp.Builder setNanos(int value)
Non-negative fractions of a second at nanosecond resolution. Negative second values with fractions must still have non-negative nanos values that count forward in time. Must be from 0 to 999,999,999 inclusive.
int32 nanos = 2;
- Parameters:
value
- The nanos to set.- Returns:
- This builder for chaining.
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clearNanos
public Timestamp.Builder clearNanos()
Non-negative fractions of a second at nanosecond resolution. Negative second values with fractions must still have non-negative nanos values that count forward in time. Must be from 0 to 999,999,999 inclusive.
int32 nanos = 2;
- Returns:
- This builder for chaining.
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