public final class Duration extends GeneratedMessageV3 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 (durations.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.
|
GeneratedMessageV3.BuilderParent, GeneratedMessageV3.ExtendableBuilder<MessageType extends GeneratedMessageV3.ExtendableMessage,BuilderType extends GeneratedMessageV3.ExtendableBuilder<MessageType,BuilderType>>, GeneratedMessageV3.ExtendableMessage<MessageType extends GeneratedMessageV3.ExtendableMessage>, GeneratedMessageV3.ExtendableMessageOrBuilder<MessageType extends GeneratedMessageV3.ExtendableMessage>, GeneratedMessageV3.FieldAccessorTable| Modifier and Type | Field and Description |
|---|---|
static int |
NANOS_FIELD_NUMBER |
static int |
SECONDS_FIELD_NUMBER |
alwaysUseFieldBuilders, unknownFieldsmemoizedSizememoizedHashCode| Modifier and Type | Method and Description |
|---|---|
boolean |
equals(Object obj)
Compares the specified object with this message for equality.
|
static Duration |
getDefaultInstance() |
Duration |
getDefaultInstanceForType()
Get an instance of the type with no fields set.
|
static Descriptors.Descriptor |
getDescriptor() |
int |
getNanos()
Signed fractions of a second at nanosecond resolution of the span
of time.
|
Parser<Duration> |
getParserForType()
Gets the parser for a message of the same type as this message.
|
long |
getSeconds()
Signed seconds of the span of time.
|
int |
getSerializedSize()
Get the number of bytes required to encode this message.
|
UnknownFieldSet |
getUnknownFields()
Get the
UnknownFieldSet for this message. |
int |
hashCode()
Returns the hash code value for this message.
|
protected GeneratedMessageV3.FieldAccessorTable |
internalGetFieldAccessorTable()
Get the FieldAccessorTable for this type.
|
boolean |
isInitialized()
Returns true if all required fields in the message and all embedded
messages are set, false otherwise.
|
static Duration.Builder |
newBuilder() |
static Duration.Builder |
newBuilder(Duration prototype) |
Duration.Builder |
newBuilderForType()
Constructs a new builder for a message of the same type as this message.
|
protected Duration.Builder |
newBuilderForType(GeneratedMessageV3.BuilderParent parent)
TODO(xiaofeng): remove this together with GeneratedMessageV3.BuilderParent.
|
static Duration |
parseDelimitedFrom(InputStream input) |
static Duration |
parseDelimitedFrom(InputStream input,
ExtensionRegistryLite extensionRegistry) |
static Duration |
parseFrom(byte[] data) |
static Duration |
parseFrom(byte[] data,
ExtensionRegistryLite extensionRegistry) |
static Duration |
parseFrom(ByteBuffer data) |
static Duration |
parseFrom(ByteBuffer data,
ExtensionRegistryLite extensionRegistry) |
static Duration |
parseFrom(ByteString data) |
static Duration |
parseFrom(ByteString data,
ExtensionRegistryLite extensionRegistry) |
static Duration |
parseFrom(CodedInputStream input) |
static Duration |
parseFrom(CodedInputStream input,
ExtensionRegistryLite extensionRegistry) |
static Duration |
parseFrom(InputStream input) |
static Duration |
parseFrom(InputStream input,
ExtensionRegistryLite extensionRegistry) |
static Parser<Duration> |
parser() |
Duration.Builder |
toBuilder()
Constructs a builder initialized with the current message.
|
void |
writeTo(CodedOutputStream output)
Serializes the message and writes it to
output. |
canUseUnsafe, computeStringSize, computeStringSizeNoTag, getAllFields, getDescriptorForType, getField, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneof, internalGetMapField, makeExtensionsImmutable, newBuilderForType, parseDelimitedWithIOException, parseDelimitedWithIOException, parseUnknownField, parseUnknownFieldProto3, parseWithIOException, parseWithIOException, parseWithIOException, parseWithIOException, serializeBooleanMapTo, serializeIntegerMapTo, serializeLongMapTo, serializeStringMapTo, writeReplace, writeString, writeStringNoTagfindInitializationErrors, getInitializationErrorString, hashBoolean, hashEnum, hashEnumList, hashFields, hashLong, toStringaddAll, addAll, checkByteStringIsUtf8, toByteArray, toByteString, writeDelimitedTo, writeToclone, finalize, getClass, notify, notifyAll, wait, wait, waitfindInitializationErrors, getAllFields, getDescriptorForType, getField, getInitializationErrorString, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneoftoByteArray, toByteString, writeDelimitedTo, writeTopublic static final int SECONDS_FIELD_NUMBER
public static final int NANOS_FIELD_NUMBER
public final UnknownFieldSet getUnknownFields()
MessageOrBuilderUnknownFieldSet for this message.getUnknownFields in interface MessageOrBuildergetUnknownFields in class GeneratedMessageV3public static final Descriptors.Descriptor getDescriptor()
protected GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
GeneratedMessageV3internalGetFieldAccessorTable in class GeneratedMessageV3public 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 DurationOrBuilderpublic 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 DurationOrBuilderpublic final boolean isInitialized()
MessageLiteOrBuilderisInitialized in interface MessageLiteOrBuilderisInitialized in class GeneratedMessageV3public void writeTo(CodedOutputStream output) throws IOException
MessageLiteoutput. This does not
flush or close the stream.writeTo in interface MessageLitewriteTo in class GeneratedMessageV3IOExceptionpublic int getSerializedSize()
MessageLitegetSerializedSize in interface MessageLitegetSerializedSize in class GeneratedMessageV3public boolean equals(Object obj)
Messagetrue if the given object is a message of the same type (as
defined by getDescriptorForType()) and has identical values for
all of its fields. Subclasses must implement this; inheriting
Object.equals() is incorrect.equals in interface Messageequals in class AbstractMessageobj - object to be compared for equality with this messagetrue if the specified object is equal to this messagepublic int hashCode()
MessageObject.hashCode() is incorrect.hashCode in interface MessagehashCode in class AbstractMessageMap.hashCode()public static Duration parseFrom(ByteBuffer data) throws InvalidProtocolBufferException
InvalidProtocolBufferExceptionpublic static Duration parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException
InvalidProtocolBufferExceptionpublic static Duration parseFrom(ByteString data) throws InvalidProtocolBufferException
InvalidProtocolBufferExceptionpublic static Duration parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException
InvalidProtocolBufferExceptionpublic static Duration parseFrom(byte[] data) throws InvalidProtocolBufferException
InvalidProtocolBufferExceptionpublic static Duration parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException
InvalidProtocolBufferExceptionpublic static Duration parseFrom(InputStream input) throws IOException
IOExceptionpublic static Duration parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws IOException
IOExceptionpublic static Duration parseDelimitedFrom(InputStream input) throws IOException
IOExceptionpublic static Duration parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws IOException
IOExceptionpublic static Duration parseFrom(CodedInputStream input) throws IOException
IOExceptionpublic static Duration parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry) throws IOException
IOExceptionpublic Duration.Builder newBuilderForType()
MessageLitenewBuilderForType in interface MessagenewBuilderForType in interface MessageLitepublic static Duration.Builder newBuilder()
public static Duration.Builder newBuilder(Duration prototype)
public Duration.Builder toBuilder()
MessageLitetoBuilder in interface MessagetoBuilder in interface MessageLiteprotected Duration.Builder newBuilderForType(GeneratedMessageV3.BuilderParent parent)
GeneratedMessageV3newBuilderForType in class GeneratedMessageV3public static Duration getDefaultInstance()
public Parser<Duration> getParserForType()
MessageLitegetParserForType in interface MessagegetParserForType in interface MessageLitegetParserForType in class GeneratedMessageV3public Duration getDefaultInstanceForType()
MessageLiteOrBuildergetDefaultInstance() method of generated message classes in that
this method is an abstract method of the MessageLite interface
whereas getDefaultInstance() is a static method of a specific
class. They return the same thing.getDefaultInstanceForType in interface MessageLiteOrBuildergetDefaultInstanceForType in interface MessageOrBuilderCopyright © 2008–2018. All rights reserved.