public final class Duration extends GeneratedMessageLite<Duration,Duration.Builder> implements DurationOrBuilder
A Duration represents a signed, fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". It is related to Timestamp in that the difference between two Timestamp values is a Duration and it can be added or subtracted from a Timestamp. Range is approximately +-10,000 years. # Examples Example 1: Compute Duration from two Timestamps in pseudo code. Timestamp start = ...; Timestamp end = ...; Duration duration = ...; duration.seconds = end.seconds - start.seconds; duration.nanos = end.nanos - start.nanos; if (duration.seconds < 0 && duration.nanos > 0) { duration.seconds += 1; duration.nanos -= 1000000000; } else if (duration.seconds > 0 && duration.nanos < 0) { duration.seconds -= 1; duration.nanos += 1000000000; } Example 2: Compute Timestamp from Timestamp + Duration in pseudo code. Timestamp start = ...; Duration duration = ...; Timestamp end = ...; end.seconds = start.seconds + duration.seconds; end.nanos = start.nanos + duration.nanos; if (end.nanos < 0) { end.seconds -= 1; end.nanos += 1000000000; } else if (end.nanos >= 1000000000) { end.seconds += 1; end.nanos -= 1000000000; } Example 3: Compute Duration from datetime.timedelta in Python. td = datetime.timedelta(days=3, minutes=10) duration = Duration() duration.FromTimedelta(td) # JSON Mapping In JSON format, the Duration type is encoded as a string rather than an object, where the string ends in the suffix "s" (indicating seconds) and is preceded by the number of seconds, with nanoseconds expressed as fractional seconds. For example, 3 seconds with 0 nanoseconds should be encoded in JSON format as "3s", while 3 seconds and 1 nanosecond should be expressed in JSON format as "3.000000001s", and 3 seconds and 1 microsecond should be expressed in JSON format as "3.000001s".Protobuf type
google.protobuf.Duration
Modifier and Type | Class and Description |
---|---|
static class |
Duration.Builder
A Duration represents a signed, fixed-length span of time represented
as a count of seconds and fractions of seconds at nanosecond
resolution.
|
GeneratedMessageLite.DefaultInstanceBasedParser<T extends GeneratedMessageLite<T,?>>, GeneratedMessageLite.ExtendableBuilder<MessageType extends GeneratedMessageLite.ExtendableMessage<MessageType,BuilderType>,BuilderType extends GeneratedMessageLite.ExtendableBuilder<MessageType,BuilderType>>, GeneratedMessageLite.ExtendableMessage<MessageType extends GeneratedMessageLite.ExtendableMessage<MessageType,BuilderType>,BuilderType extends GeneratedMessageLite.ExtendableBuilder<MessageType,BuilderType>>, GeneratedMessageLite.ExtendableMessageOrBuilder<MessageType extends GeneratedMessageLite.ExtendableMessage<MessageType,BuilderType>,BuilderType extends GeneratedMessageLite.ExtendableBuilder<MessageType,BuilderType>>, GeneratedMessageLite.GeneratedExtension<ContainingType extends MessageLite,Type>, GeneratedMessageLite.MethodToInvoke, GeneratedMessageLite.SerializedForm
AbstractMessageLite.InternalOneOfEnum
Modifier and Type | Field and Description |
---|---|
static int |
NANOS_FIELD_NUMBER |
static int |
SECONDS_FIELD_NUMBER |
memoizedSerializedSize, unknownFields
memoizedHashCode
createBuilder, createBuilder, dynamicMethod, dynamicMethod, emptyBooleanList, emptyDoubleList, emptyFloatList, emptyIntList, emptyLongList, emptyProtobufList, equals, getDefaultInstanceForType, getParserForType, getSerializedSize, hashCode, isInitialized, isInitialized, makeImmutable, mergeLengthDelimitedField, mergeUnknownFields, mergeVarintField, mutableCopy, mutableCopy, mutableCopy, mutableCopy, mutableCopy, mutableCopy, newBuilderForType, newMessageInfo, newRepeatedGeneratedExtension, newSingularGeneratedExtension, parseDelimitedFrom, parseDelimitedFrom, parseFrom, parseFrom, parseFrom, parseFrom, parseFrom, parseFrom, parseFrom, parseFrom, parseFrom, parseFrom, parsePartialFrom, parseUnknownField, registerDefaultInstance, toBuilder, toString, writeTo
addAll, addAll, checkByteStringIsUtf8, toByteArray, toByteString, writeDelimitedTo, writeTo
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
getDefaultInstanceForType, isInitialized
public static final int SECONDS_FIELD_NUMBER
public static final int NANOS_FIELD_NUMBER
public long getSeconds()
Signed seconds of the span of time. Must be from -315,576,000,000 to +315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
int64 seconds = 1;
getSeconds
in interface DurationOrBuilder
public int getNanos()
Signed fractions of a second at nanosecond resolution of the span of time. 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. Must be from -999,999,999 to +999,999,999 inclusive.
int32 nanos = 2;
getNanos
in interface DurationOrBuilder
public static Duration parseFrom(ByteBuffer data) throws InvalidProtocolBufferException
InvalidProtocolBufferException
public static Duration parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException
InvalidProtocolBufferException
public static Duration parseFrom(ByteString data) throws InvalidProtocolBufferException
InvalidProtocolBufferException
public static Duration parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException
InvalidProtocolBufferException
public static Duration parseFrom(byte[] data) throws InvalidProtocolBufferException
InvalidProtocolBufferException
public static Duration parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException
InvalidProtocolBufferException
public static Duration parseFrom(InputStream input) throws IOException
IOException
public static Duration parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws IOException
IOException
public static Duration parseDelimitedFrom(InputStream input) throws IOException
IOException
public static Duration parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws IOException
IOException
public static Duration parseFrom(CodedInputStream input) throws IOException
IOException
public static Duration parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry) throws IOException
IOException
public static Duration.Builder newBuilder()
public static Duration.Builder newBuilder(Duration prototype)
protected final Object dynamicMethod(GeneratedMessageLite.MethodToInvoke method, Object arg0, Object arg1)
GeneratedMessageLite
GeneratedMessageLite.MethodToInvoke
.
Theses different kinds of operations are required to implement message-level operations for
builders in the runtime. This method bundles those operations to reduce the generated methods
count.
NEW_INSTANCE
returns a new instance of the protocol buffer that has not yet been
made immutable. See MAKE_IMMUTABLE
.
IS_INITIALIZED
returns null
for false and the default instance for true.
It doesn't use or modify any memoized value.
GET_MEMOIZED_IS_INITIALIZED
returns the memoized isInitialized
byte
value.
SET_MEMOIZED_IS_INITIALIZED
sets the memoized isInitilaized
byte value to
1 if the first parameter is not null, or to 0 if the first parameter is null.
NEW_BUILDER
returns a BuilderType
instance.
For use by generated code only.
dynamicMethod
in class GeneratedMessageLite<Duration,Duration.Builder>
public static Duration getDefaultInstance()
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