Package com.google.protobuf
Class Duration
java.lang.Object
com.google.protobuf.AbstractMessageLite
com.google.protobuf.AbstractMessage
com.google.protobuf.GeneratedMessageV3
com.google.protobuf.Duration
- All Implemented Interfaces:
DurationOrBuilder
,Message
,MessageLite
,MessageLiteOrBuilder
,MessageOrBuilder
,Serializable
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
- See Also:
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic final class
A Duration represents a signed, fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution.Nested classes/interfaces inherited from class com.google.protobuf.GeneratedMessageV3
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.ExtensionDescriptorRetriever, GeneratedMessageV3.FieldAccessorTable, GeneratedMessageV3.UnusedPrivateParameter Nested classes/interfaces inherited from class com.google.protobuf.AbstractMessageLite
AbstractMessageLite.InternalOneOfEnum
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate static final Duration
private byte
private int
static final int
private long
static final int
private static final long
Fields inherited from class com.google.protobuf.GeneratedMessageV3
alwaysUseFieldBuilders, unknownFields
Fields inherited from class com.google.protobuf.AbstractMessage
memoizedSize
Fields inherited from class com.google.protobuf.AbstractMessageLite
memoizedHashCode
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Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
Duration()
private
Duration
(GeneratedMessageV3.Builder<?> builder) -
Method Summary
Modifier and TypeMethodDescriptionboolean
Compares the specified object with this message for equality.static Duration
Get an instance of the type with no fields set.static final Descriptors.Descriptor
int
getNanos()
Signed fractions of a second at nanosecond resolution of the span of time.Gets the parser for a message of the same type as this message.long
Signed seconds of the span of time.int
Get the number of bytes required to encode this message.final UnknownFieldSet
Get theUnknownFieldSet
for this message.int
hashCode()
Returns the hash code value for this message.protected GeneratedMessageV3.FieldAccessorTable
Get the FieldAccessorTable for this type.final boolean
Returns true if all required fields in the message and all embedded messages are set, false otherwise.static Duration.Builder
static Duration.Builder
newBuilder
(Duration prototype) Constructs a new builder for a message of the same type as this message.protected Duration.Builder
TODO(xiaofeng): remove this together with GeneratedMessageV3.BuilderParent.protected Object
Creates a new instance of this message type.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
(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 Duration
parseFrom
(ByteBuffer data) static Duration
parseFrom
(ByteBuffer data, ExtensionRegistryLite extensionRegistry) parser()
Constructs a builder initialized with the current message.void
writeTo
(CodedOutputStream output) Serializes the message and writes it tooutput
.Methods inherited from class com.google.protobuf.GeneratedMessageV3
canUseUnsafe, computeStringSize, computeStringSizeNoTag, emptyBooleanList, emptyDoubleList, emptyFloatList, emptyIntList, emptyLongList, enableAlwaysUseFieldBuildersForTesting, getAllFields, getAllFieldsRaw, getDescriptorForType, getField, getFieldRaw, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneof, internalGetMapField, isStringEmpty, makeExtensionsImmutable, mergeFromAndMakeImmutableInternal, mutableCopy, mutableCopy, mutableCopy, mutableCopy, mutableCopy, newBooleanList, newBuilderForType, newDoubleList, newFloatList, newIntList, newLongList, parseDelimitedWithIOException, parseDelimitedWithIOException, parseUnknownField, parseUnknownFieldProto3, parseWithIOException, parseWithIOException, parseWithIOException, parseWithIOException, serializeBooleanMapTo, serializeIntegerMapTo, serializeLongMapTo, serializeStringMapTo, setAlwaysUseFieldBuildersForTesting, writeReplace, writeString, writeStringNoTag
Methods inherited from class com.google.protobuf.AbstractMessage
compareFields, findInitializationErrors, getInitializationErrorString, getMemoizedSerializedSize, hashBoolean, hashEnum, hashEnumList, hashFields, hashLong, newUninitializedMessageException, setMemoizedSerializedSize, toString
Methods inherited from class com.google.protobuf.AbstractMessageLite
addAll, addAll, checkByteStringIsUtf8, getSerializedSize, toByteArray, toByteString, writeDelimitedTo, writeTo
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface com.google.protobuf.MessageLite
toByteArray, toByteString, writeDelimitedTo, writeTo
Methods inherited from interface com.google.protobuf.MessageOrBuilder
findInitializationErrors, getAllFields, getDescriptorForType, getField, getInitializationErrorString, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneof
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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SECONDS_FIELD_NUMBER
public static final int SECONDS_FIELD_NUMBER- See Also:
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seconds_
private long seconds_ -
NANOS_FIELD_NUMBER
public static final int NANOS_FIELD_NUMBER- See Also:
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nanos_
private int nanos_ -
memoizedIsInitialized
private byte memoizedIsInitialized -
DEFAULT_INSTANCE
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PARSER
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Constructor Details
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Duration
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Duration
private Duration()
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Method Details
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newInstance
Description copied from class:GeneratedMessageV3
Creates a new instance of this message type. Overridden in the generated code.- Overrides:
newInstance
in classGeneratedMessageV3
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getUnknownFields
Description copied from interface:MessageOrBuilder
Get theUnknownFieldSet
for this message.- Specified by:
getUnknownFields
in interfaceMessageOrBuilder
- Overrides:
getUnknownFields
in classGeneratedMessageV3
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getDescriptor
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internalGetFieldAccessorTable
Description copied from class:GeneratedMessageV3
Get the FieldAccessorTable for this type. We can't have the message class pass this in to the constructor because of bootstrapping trouble with DescriptorProtos.- Specified by:
internalGetFieldAccessorTable
in classGeneratedMessageV3
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getSeconds
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;
- Specified by:
getSeconds
in interfaceDurationOrBuilder
- Returns:
- The seconds.
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getNanos
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;
- Specified by:
getNanos
in interfaceDurationOrBuilder
- Returns:
- The nanos.
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isInitialized
public final boolean isInitialized()Description copied from interface:MessageLiteOrBuilder
Returns true if all required fields in the message and all embedded messages are set, false otherwise.- Specified by:
isInitialized
in interfaceMessageLiteOrBuilder
- Overrides:
isInitialized
in classGeneratedMessageV3
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writeTo
Description copied from interface:MessageLite
Serializes the message and writes it tooutput
. This does not flush or close the stream.- Specified by:
writeTo
in interfaceMessageLite
- Overrides:
writeTo
in classGeneratedMessageV3
- Throws:
IOException
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getSerializedSize
public int getSerializedSize()Description copied from interface:MessageLite
Get the number of bytes required to encode this message. The result is only computed on the first call and memoized after that. If this message requires more than Integer.MAX_VALUE bytes to encode, the return value will be smaller than the actual number of bytes required and might be negative.- Specified by:
getSerializedSize
in interfaceMessageLite
- Overrides:
getSerializedSize
in classGeneratedMessageV3
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equals
Description copied from interface:Message
Compares the specified object with this message for equality. Returnstrue
if the given object is a message of the same type (as defined bygetDescriptorForType()
) and has identical values for all of its fields. Subclasses must implement this; inheritingObject.equals()
is incorrect.- Specified by:
equals
in interfaceMessage
- Overrides:
equals
in classAbstractMessage
- Parameters:
obj
- object to be compared for equality with this message- Returns:
true
if the specified object is equal to this message
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hashCode
public int hashCode()Description copied from interface:Message
Returns the hash code value for this message. The hash code of a message should mix the message's type (object identity of the descriptor) with its contents (known and unknown field values). Subclasses must implement this; inheritingObject.hashCode()
is incorrect.- Specified by:
hashCode
in interfaceMessage
- Overrides:
hashCode
in classAbstractMessage
- Returns:
- the hash code value for this message
- See Also:
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parseFrom
- Throws:
InvalidProtocolBufferException
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parseFrom
public static Duration parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException - Throws:
InvalidProtocolBufferException
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parseFrom
- Throws:
InvalidProtocolBufferException
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parseFrom
public static Duration parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException - Throws:
InvalidProtocolBufferException
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parseFrom
- Throws:
InvalidProtocolBufferException
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parseFrom
public static Duration parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException - Throws:
InvalidProtocolBufferException
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parseFrom
- Throws:
IOException
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parseFrom
public static Duration parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws IOException - Throws:
IOException
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parseDelimitedFrom
- Throws:
IOException
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parseDelimitedFrom
public static Duration parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws IOException - Throws:
IOException
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parseFrom
- Throws:
IOException
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parseFrom
public static Duration parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry) throws IOException - Throws:
IOException
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newBuilderForType
Description copied from interface:MessageLite
Constructs a new builder for a message of the same type as this message.- Specified by:
newBuilderForType
in interfaceMessage
- Specified by:
newBuilderForType
in interfaceMessageLite
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newBuilder
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newBuilder
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toBuilder
Description copied from interface:MessageLite
Constructs a builder initialized with the current message. Use this to derive a new message from the current one.- Specified by:
toBuilder
in interfaceMessage
- Specified by:
toBuilder
in interfaceMessageLite
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newBuilderForType
Description copied from class:GeneratedMessageV3
TODO(xiaofeng): remove this together with GeneratedMessageV3.BuilderParent.- Specified by:
newBuilderForType
in classGeneratedMessageV3
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getDefaultInstance
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parser
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getParserForType
Description copied from interface:MessageLite
Gets the parser for a message of the same type as this message.- Specified by:
getParserForType
in interfaceMessage
- Specified by:
getParserForType
in interfaceMessageLite
- Overrides:
getParserForType
in classGeneratedMessageV3
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getDefaultInstanceForType
Description copied from interface:MessageLiteOrBuilder
Get an instance of the type with no fields set. Because no fields are set, all getters for singular fields will return default values and repeated fields will appear empty. This may or may not be a singleton. This differs from thegetDefaultInstance()
method of generated message classes in that this method is an abstract method of theMessageLite
interface whereasgetDefaultInstance()
is a static method of a specific class. They return the same thing.- Specified by:
getDefaultInstanceForType
in interfaceMessageLiteOrBuilder
- Specified by:
getDefaultInstanceForType
in interfaceMessageOrBuilder
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