com.google.protobuf

Class GeneratedMessage.GeneratedExtension<ContainingType extends Message,Type>

java.lang.Object

com.google.protobuf.ExtensionLite<ContainingType,Type>

com.google.protobuf.Extension<ContainingType,Type>

com.google.protobuf.GeneratedMessage.GeneratedExtension<ContainingType,Type>

Enclosing class:

GeneratedMessage

public static class GeneratedMessage.GeneratedExtension<ContainingType extends Message,Type>
extends Extension<ContainingType,Type>

Type used to represent generated extensions. The protocol compiler generates a static singleton instance of this class for each extension.

For example, imagine you have the .proto file:

 option java_class = "MyProto";

 message Foo {
   extensions 1000 to max;
 }

 extend Foo {
   optional int32 bar;
 }
 

Then, MyProto.Foo.bar has type GeneratedExtension<MyProto.Foo, Integer>.

In general, users should ignore the details of this type, and simply use these static singletons as parameters to the extension accessors defined in GeneratedMessageLite.ExtendableMessage and GeneratedMessage.ExtendableBuilder.

Nested Class Summary

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

Extension.MessageType

Method Summary

Modifier and Type	Method and Description
Type	getDefaultValue() Returns the default value of the extension field.
Descriptors.FieldDescriptor	getDescriptor() Returns the descriptor of the extension.
WireFormat.FieldType	getLiteType() Returns the type of the field.
Message	getMessageDefaultInstance() If the extension is an embedded message or group, returns the default instance of the message.
int	getNumber() Returns the field number of the extension.
void	internalInit(Descriptors.FieldDescriptor descriptor) For use by generated code only.
boolean	isRepeated() Returns whether it is a repeated field.

Methods inherited from class com.google.protobuf.Extension

getMessageType

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

internalInit

public void internalInit(Descriptors.FieldDescriptor descriptor)

For use by generated code only.

getDescriptor

public Descriptors.FieldDescriptor getDescriptor()

Description copied from class: Extension

Returns the descriptor of the extension.

Specified by:

getDescriptor in class Extension<ContainingType extends Message,Type>

getMessageDefaultInstance

public Message getMessageDefaultInstance()

If the extension is an embedded message or group, returns the default instance of the message.

Specified by:

getMessageDefaultInstance in class ExtensionLite<ContainingType extends Message,Type>

getNumber

public int getNumber()

Description copied from class: ExtensionLite

Returns the field number of the extension.

Specified by:

getNumber in class ExtensionLite<ContainingType extends Message,Type>

getLiteType

public WireFormat.FieldType getLiteType()

Description copied from class: ExtensionLite

Returns the type of the field.

Specified by:

getLiteType in class ExtensionLite<ContainingType extends Message,Type>

isRepeated

public boolean isRepeated()

Description copied from class: ExtensionLite

Returns whether it is a repeated field.

Specified by:

isRepeated in class ExtensionLite<ContainingType extends Message,Type>

getDefaultValue

public Type getDefaultValue()

Description copied from class: ExtensionLite

Returns the default value of the extension field.

Specified by:

getDefaultValue in class ExtensionLite<ContainingType extends Message,Type>