java.lang.Object
- com.google.protobuf.UnknownFieldSet

All Implemented Interfaces:

MessageLite, MessageLiteOrBuilder
```
public final class UnknownFieldSet
extends java.lang.Object
implements MessageLite
```
UnknownFieldSet keeps track of fields which were seen when parsing a protocol message but whose field numbers or types are unrecognized. This most frequently occurs when new fields are added to a message type and then messages containing those fields are read by old software that was compiled before the new types were added.
Every Message contains an UnknownFieldSet (and every Message.Builder contains a UnknownFieldSet.Builder).
Most users will never need to use this class.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`UnknownFieldSet.Builder`	Builder for `UnknownFieldSet`s.
`static class`	`UnknownFieldSet.Field`	Represents a single field in an `UnknownFieldSet`.
`static class`	`UnknownFieldSet.Parser`	Parser to implement MessageLite interface.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.Map<java.lang.Integer,UnknownFieldSet.Field>`	`asMap()`	Get a map of fields in the set by number.
`boolean`	`equals(java.lang.Object other)`
`static UnknownFieldSet`	`getDefaultInstance()`	Get an empty `UnknownFieldSet`.
`UnknownFieldSet`	`getDefaultInstanceForType()`	Get an instance of the type with no fields set.
`UnknownFieldSet.Field`	`getField(int number)`	Get a field by number.
`UnknownFieldSet.Parser`	`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 set.
`int`	`getSerializedSizeAsMessageSet()`	Get the number of bytes required to encode this set using `MessageSet` wire format.
`boolean`	`hasField(int number)`	Check if the given field number is present in the set.
`int`	`hashCode()`
`boolean`	`isInitialized()`	Returns true if all required fields in the message and all embedded messages are set, false otherwise.
`static UnknownFieldSet.Builder`	`newBuilder()`	Create a new `UnknownFieldSet.Builder`.
`static UnknownFieldSet.Builder`	`newBuilder(UnknownFieldSet copyFrom)`	Create a new `UnknownFieldSet.Builder` and initialize it to be a copy of `copyFrom`.
`UnknownFieldSet.Builder`	`newBuilderForType()`	Constructs a new builder for a message of the same type as this message.
`static UnknownFieldSet`	`parseFrom(byte[] data)`	Parse `data` as an `UnknownFieldSet` and return it.
`static UnknownFieldSet`	`parseFrom(ByteString data)`	Parse `data` as an `UnknownFieldSet` and return it.
`static UnknownFieldSet`	`parseFrom(CodedInputStream input)`	Parse an `UnknownFieldSet` from the given input stream.
`static UnknownFieldSet`	`parseFrom(java.io.InputStream input)`	Parse an `UnknownFieldSet` from `input` and return it.
`UnknownFieldSet.Builder`	`toBuilder()`	Constructs a builder initialized with the current message.
`byte[]`	`toByteArray()`	Serializes the message to a `byte` array and returns it.
`ByteString`	`toByteString()`	Serializes the message to a `ByteString` and returns it.
`java.lang.String`	`toString()`	Converts the set to a string in protocol buffer text format.
`void`	`writeAsMessageSetTo(CodedOutputStream output)`	Serializes the set and writes it to `output` using `MessageSet` wire format.
`void`	`writeDelimitedTo(java.io.OutputStream output)`	Like `MessageLite.writeTo(OutputStream)`, but writes the size of the message as a varint before writing the data.
`void`	`writeTo(CodedOutputStream output)`	Serializes the set and writes it to `output`.
`void`	`writeTo(java.io.OutputStream output)`	Serializes the message and writes it to `output`.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Method Detail
  - newBuilder
```
public static UnknownFieldSet.Builder newBuilder()
```
    Create a new UnknownFieldSet.Builder.
  - newBuilder
```
public static UnknownFieldSet.Builder newBuilder(UnknownFieldSet copyFrom)
```
    Create a new UnknownFieldSet.Builder and initialize it to be a copy of copyFrom.
  - getDefaultInstance
```
public static UnknownFieldSet getDefaultInstance()
```
    Get an empty UnknownFieldSet.
  - getDefaultInstanceForType
```
public UnknownFieldSet 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
  - equals
```
public boolean equals(java.lang.Object other)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - asMap
```
public java.util.Map<java.lang.Integer,UnknownFieldSet.Field> asMap()
```
    Get a map of fields in the set by number.
  - hasField
```
public boolean hasField(int number)
```
    Check if the given field number is present in the set.
  - getField
```
public UnknownFieldSet.Field getField(int number)
```
    Get a field by number. Returns an empty field if not present. Never returns null.
  - writeTo
```
public void writeTo(CodedOutputStream output)
             throws java.io.IOException
```
    Serializes the set and writes it to output.
    
    Specified by:
    
    writeTo in interface MessageLite
    
    Throws:
    
    java.io.IOException
  - toString
```
public java.lang.String toString()
```
    Converts the set to a string in protocol buffer text format. This is just a trivial wrapper around TextFormat.Printer.printToString(UnknownFieldSet).
    
    Overrides:
    
    toString in class java.lang.Object
  - toByteString
```
public ByteString toByteString()
```
    Serializes the message to a ByteString and returns it. This is just a trivial wrapper around writeTo(CodedOutputStream).
    
    Specified by:
    
    toByteString in interface MessageLite
  - toByteArray
```
public byte[] toByteArray()
```
    Serializes the message to a byte array and returns it. This is just a trivial wrapper around writeTo(CodedOutputStream).
    
    Specified by:
    
    toByteArray in interface MessageLite
  - writeTo
```
public void writeTo(java.io.OutputStream output)
             throws java.io.IOException
```
    Serializes the message and writes it to output. This is just a trivial wrapper around writeTo(CodedOutputStream).
    
    Specified by:
    
    writeTo in interface MessageLite
    
    Throws:
    
    java.io.IOException
  - writeDelimitedTo
```
public void writeDelimitedTo(java.io.OutputStream output)
                      throws java.io.IOException
```
    Description copied from interface: MessageLite
    
    Like MessageLite.writeTo(OutputStream), but writes the size of the message as a varint before writing the data. This allows more data to be written to the stream after the message without the need to delimit the message data yourself. Use MessageLite.Builder.mergeDelimitedFrom(InputStream) (or the static method YourMessageType.parseDelimitedFrom(InputStream)) to parse messages written by this method.
    
    Specified by:
    
    writeDelimitedTo in interface MessageLite
    
    Throws:
    
    java.io.IOException
  - getSerializedSize
```
public int getSerializedSize()
```
    Get the number of bytes required to encode this set.
    
    Specified by:
    
    getSerializedSize in interface MessageLite
  - writeAsMessageSetTo
```
public void writeAsMessageSetTo(CodedOutputStream output)
                         throws java.io.IOException
```
    Serializes the set and writes it to output using MessageSet wire format.
    
    Throws:
    
    java.io.IOException
  - getSerializedSizeAsMessageSet
```
public int getSerializedSizeAsMessageSet()
```
    Get the number of bytes required to encode this set using MessageSet wire format.
  - isInitialized
```
public 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
  - parseFrom
```
public static UnknownFieldSet parseFrom(CodedInputStream input)
                                 throws java.io.IOException
```
    Parse an UnknownFieldSet from the given input stream.
    
    Throws:
    
    java.io.IOException
  - parseFrom
```
public static UnknownFieldSet parseFrom(ByteString data)
                                 throws InvalidProtocolBufferException
```
    Parse data as an UnknownFieldSet and return it.
    
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static UnknownFieldSet parseFrom(byte[] data)
                                 throws InvalidProtocolBufferException
```
    Parse data as an UnknownFieldSet and return it.
    
    Throws:
    
    InvalidProtocolBufferException
  - parseFrom
```
public static UnknownFieldSet parseFrom(java.io.InputStream input)
                                 throws java.io.IOException
```
    Parse an UnknownFieldSet from input and return it.
    
    Throws:
    
    java.io.IOException
  - newBuilderForType
```
public UnknownFieldSet.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 MessageLite
  - toBuilder
```
public UnknownFieldSet.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 MessageLite
  - getParserForType
```
public final UnknownFieldSet.Parser getParserForType()
```
    Description copied from interface: MessageLite
    
    Gets the parser for a message of the same type as this message.
    
    Specified by:
    
    getParserForType in interface MessageLite

Class UnknownFieldSet

Nested Class Summary

Method Summary

Methods inherited from class java.lang.Object

Method Detail

newBuilder

newBuilder

getDefaultInstance

getDefaultInstanceForType

equals

hashCode

asMap

hasField

getField

writeTo

toString

toByteString

toByteArray

writeTo

writeDelimitedTo

getSerializedSize

writeAsMessageSetTo

getSerializedSizeAsMessageSet

isInitialized

parseFrom

parseFrom

parseFrom

parseFrom

newBuilderForType

toBuilder

getParserForType