Empty (Protocol Buffers [Core] 3.18.1 API)

java.lang.Object
- com.google.protobuf.AbstractMessageLite
- - com.google.protobuf.AbstractMessage
  - - com.google.protobuf.GeneratedMessageV3
    - - com.google.protobuf.Empty

All Implemented Interfaces:: EmptyOrBuilder, Message, MessageLite, MessageLiteOrBuilder, MessageOrBuilder, Serializable

public final class Empty
extends GeneratedMessageV3
implements EmptyOrBuilder

 A generic empty message that you can re-use to avoid defining duplicated
 empty messages in your APIs. A typical example is to use it as the request
 or the response type of an API method. For instance:
     service Foo {
       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
     }
 The JSON representation for `Empty` is empty JSON object `{}`.

Protobuf type google.protobuf.Empty

See Also:: Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class Empty.Builder
A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs.
- 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.FieldAccessorTable, GeneratedMessageV3.UnusedPrivateParameter
- Nested classes/interfaces inherited from class com.google.protobuf.AbstractMessageLite
  AbstractMessageLite.InternalOneOfEnum

Nested Classes
Modifier and Type	Class and Description
`static class`	`Empty.Builder` A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs.

Field Summary
- 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

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object obj)` Compares the specified object with this message for equality.
`static Empty`	`getDefaultInstance()`
`Empty`	`getDefaultInstanceForType()` Get an instance of the type with no fields set.
`static Descriptors.Descriptor`	`getDescriptor()`
`Parser<Empty>`	`getParserForType()` Gets the parser for a message of the same type as this message.
`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 Empty.Builder`	`newBuilder()`
`static Empty.Builder`	`newBuilder(Empty prototype)`
`Empty.Builder`	`newBuilderForType()` Constructs a new builder for a message of the same type as this message.
`protected Empty.Builder`	`newBuilderForType(GeneratedMessageV3.BuilderParent parent)` TODO(xiaofeng): remove this together with GeneratedMessageV3.BuilderParent.
`protected Object`	`newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)` Creates a new instance of this message type.
`static Empty`	`parseDelimitedFrom(InputStream input)`
`static Empty`	`parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)`
`static Empty`	`parseFrom(byte[] data)`
`static Empty`	`parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)`
`static Empty`	`parseFrom(ByteBuffer data)`
`static Empty`	`parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)`
`static Empty`	`parseFrom(ByteString data)`
`static Empty`	`parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)`
`static Empty`	`parseFrom(CodedInputStream input)`
`static Empty`	`parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)`
`static Empty`	`parseFrom(InputStream input)`
`static Empty`	`parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)`
`static Parser<Empty>`	`parser()`
`Empty.Builder`	`toBuilder()` Constructs a builder initialized with the current message.
`void`	`writeTo(CodedOutputStream output)` Serializes the message and writes it to `output`.

Methods inherited from class com.google.protobuf.GeneratedMessageV3
canUseUnsafe, computeStringSize, computeStringSizeNoTag, emptyBooleanList, emptyDoubleList, emptyFloatList, emptyIntList, emptyLongList, getAllFields, getDescriptorForType, getField, 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, writeReplace, writeString, writeStringNoTag

Methods inherited from class com.google.protobuf.AbstractMessage
findInitializationErrors, getInitializationErrorString, hashBoolean, hashEnum, hashEnumList, hashFields, hashLong, toString

Methods inherited from class com.google.protobuf.AbstractMessageLite
addAll, addAll, checkByteStringIsUtf8, 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.MessageOrBuilder
findInitializationErrors, getAllFields, getDescriptorForType, getField, getInitializationErrorString, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneof

Methods inherited from interface com.google.protobuf.MessageLite
toByteArray, toByteString, writeDelimitedTo, writeTo

- Method Detail
  - newInstance
```
protected Object newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)
```
    Description copied from class: GeneratedMessageV3
    
    Creates a new instance of this message type. Overridden in the generated code.
    
    Overrides:
    
    newInstance in class GeneratedMessageV3
  - getUnknownFields
```
public final UnknownFieldSet getUnknownFields()
```
    Description copied from interface: MessageOrBuilder
    
    Get the UnknownFieldSet for this message.
    
    Specified by:
    
    getUnknownFields in interface MessageOrBuilder
    
    Overrides:
    
    getUnknownFields in class GeneratedMessageV3
  - getDescriptor
```
public static final Descriptors.Descriptor getDescriptor()
```
  - internalGetFieldAccessorTable
```
protected GeneratedMessageV3.FieldAccessorTable 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 class GeneratedMessageV3
  - 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.
    See also: MessageOrBuilder.getInitializationErrorString()
    
    Specified by:
    
    isInitialized in interface MessageLiteOrBuilder
    
    Overrides:
    
    isInitialized in class GeneratedMessageV3
  - writeTo
```
public void writeTo(CodedOutputStream output)
             throws IOException
```
    Description copied from interface: MessageLite
    
    Serializes the message and writes it to output. This does not flush or close the stream.
    
    Specified by:
    
    writeTo in interface MessageLite
    
    Overrides:
    
    writeTo in class GeneratedMessageV3
    
    Throws:
    
    IOException
  - 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.
    
    Specified by:
    
    getSerializedSize in interface MessageLite
    
    Overrides:
    
    getSerializedSize in class GeneratedMessageV3
  - equals
```
public boolean equals(Object obj)
```
    Description copied from interface: Message
    
    Compares the specified object with this message for equality. Returns true 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.
    
    Specified by:
    
    equals in interface Message
    
    Overrides:
    
    equals in class AbstractMessage
    
    Parameters:
    
    obj - object to be compared for equality with this message
    
    Returns:
    
    true if the specified object is equal to this message
  - 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; inheriting Object.hashCode() is incorrect.
    
    Specified by:
    
    hashCode in interface Message
    
    Overrides:
    
    hashCode in class AbstractMessage
    
    Returns:
    
    the hash code value for this message
    
    See Also:
    
    Map.hashCode()
  - parseFrom
```
public static Empty parseFrom(ByteBuffer data)
                       throws InvalidProtocolBufferException
```
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static Empty parseFrom(ByteBuffer data,
                              ExtensionRegistryLite extensionRegistry)
                       throws InvalidProtocolBufferException
```
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static Empty parseFrom(ByteString data)
                       throws InvalidProtocolBufferException
```
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static Empty parseFrom(ByteString data,
                              ExtensionRegistryLite extensionRegistry)
                       throws InvalidProtocolBufferException
```
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static Empty parseFrom(byte[] data)
                       throws InvalidProtocolBufferException
```
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static Empty parseFrom(byte[] data,
                              ExtensionRegistryLite extensionRegistry)
                       throws InvalidProtocolBufferException
```
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static Empty parseFrom(InputStream input)
                       throws IOException
```
    Throws:
    
    IOException
  - parseFrom
```
public static Empty parseFrom(InputStream input,
                              ExtensionRegistryLite extensionRegistry)
                       throws IOException
```
    Throws:
    
    IOException
  - parseDelimitedFrom
```
public static Empty parseDelimitedFrom(InputStream input)
                                throws IOException
```
    Throws:
    
    IOException
  - parseDelimitedFrom
```
public static Empty parseDelimitedFrom(InputStream input,
                                       ExtensionRegistryLite extensionRegistry)
                                throws IOException
```
    Throws:
    
    IOException
  - parseFrom
```
public static Empty parseFrom(CodedInputStream input)
                       throws IOException
```
    Throws:
    
    IOException
  - parseFrom
```
public static Empty parseFrom(CodedInputStream input,
                              ExtensionRegistryLite extensionRegistry)
                       throws IOException
```
    Throws:
    
    IOException
  - newBuilderForType
```
public Empty.Builder newBuilderForType()
```
    Description copied from interface: MessageLite
    
    Constructs a new builder for a message of the same type as this message.
    
    Specified by:
    
    newBuilderForType in interface Message
    
    Specified by:
    
    newBuilderForType in interface MessageLite
  - newBuilder
```
public static Empty.Builder newBuilder()
```
  - newBuilder
```
public static Empty.Builder newBuilder(Empty prototype)
```
  - toBuilder
```
public Empty.Builder 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 interface Message
    
    Specified by:
    
    toBuilder in interface MessageLite
  - newBuilderForType
```
protected Empty.Builder newBuilderForType(GeneratedMessageV3.BuilderParent parent)
```
    Description copied from class: GeneratedMessageV3
    
    TODO(xiaofeng): remove this together with GeneratedMessageV3.BuilderParent.
    
    Specified by:
    
    newBuilderForType in class GeneratedMessageV3
  - getDefaultInstance
```
public static Empty getDefaultInstance()
```
  - parser
```
public static Parser<Empty> parser()
```
  - getParserForType
```
public Parser<Empty> getParserForType()
```
    Description copied from interface: MessageLite
    
    Gets the parser for a message of the same type as this message.
    
    Specified by:
    
    getParserForType in interface Message
    
    Specified by:
    
    getParserForType in interface MessageLite
    
    Overrides:
    
    getParserForType in class GeneratedMessageV3
  - getDefaultInstanceForType
```
public Empty 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 the getDefaultInstance() 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.
    
    Specified by:
    
    getDefaultInstanceForType in interface MessageLiteOrBuilder
    
    Specified by:
    
    getDefaultInstanceForType in interface MessageOrBuilder

Class Empty

Nested Class Summary

Nested classes/interfaces inherited from class com.google.protobuf.GeneratedMessageV3

Nested classes/interfaces inherited from class com.google.protobuf.AbstractMessageLite

Field Summary

Fields inherited from class com.google.protobuf.GeneratedMessageV3

Fields inherited from class com.google.protobuf.AbstractMessage

Fields inherited from class com.google.protobuf.AbstractMessageLite

Method Summary

Methods inherited from class com.google.protobuf.GeneratedMessageV3

Methods inherited from class com.google.protobuf.AbstractMessage

Methods inherited from class com.google.protobuf.AbstractMessageLite

Methods inherited from class java.lang.Object

Methods inherited from interface com.google.protobuf.MessageOrBuilder

Methods inherited from interface com.google.protobuf.MessageLite

Method Detail

newInstance

getUnknownFields

getDescriptor

internalGetFieldAccessorTable

isInitialized

writeTo

getSerializedSize

equals

hashCode

parseFrom

parseFrom

parseFrom

parseFrom

parseFrom

parseFrom

parseFrom

parseFrom

parseDelimitedFrom

parseDelimitedFrom

parseFrom

parseFrom

newBuilderForType

newBuilder

newBuilder

toBuilder

newBuilderForType

getDefaultInstance

parser

getParserForType

getDefaultInstanceForType