com.google.protobuf

Class GeneratedMessageLite.GeneratedExtension<ContainingType extends MessageLite,Type>

java.lang.Object

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

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

Enclosing class:

GeneratedMessageLite<MessageType extends GeneratedMessageLite<MessageType,BuilderType>,BuilderType extends GeneratedMessageLite.Builder<MessageType,BuilderType>>

public static class GeneratedMessageLite.GeneratedExtension<ContainingType extends MessageLite,Type>
extends ExtensionLite<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 GeneratedMessageLite.ExtendableBuilder.

Method Summary

Modifier and Type	Method and Description
ContainingType	getContainingTypeDefaultInstance() Default instance of the type being extended, used to identify that type.
Type	getDefaultValue() Returns the default value of the extension field.
WireFormat.FieldType	getLiteType() Returns the type of the field.
MessageLite	getMessageDefaultInstance() If the extension is an embedded message or group, returns the default instance of the message.
int	getNumber() Get the field number.
boolean	isRepeated() Returns whether it is a repeated field.

Methods inherited from class java.lang.Object

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

Method Detail

getContainingTypeDefaultInstance

public ContainingType getContainingTypeDefaultInstance()

Default instance of the type being extended, used to identify that 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 MessageLite,Type>

Returns:

the default value of the extension field.

getLiteType

public WireFormat.FieldType getLiteType()

Description copied from class: ExtensionLite

Returns the type of the field.

Specified by:

getLiteType in class ExtensionLite<ContainingType extends MessageLite,Type>

Returns:

the type of the field.

getMessageDefaultInstance

public MessageLite 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 MessageLite,Type>

Returns:

the default instance of the extension field.

getNumber

public int getNumber()

Get the field number.

Specified by:

getNumber in class ExtensionLite<ContainingType extends MessageLite,Type>

Returns:

the field number of the extension.

isRepeated

public boolean isRepeated()

Description copied from class: ExtensionLite

Returns whether it is a repeated field.

Specified by:

isRepeated in class ExtensionLite<ContainingType extends MessageLite,Type>

Returns:

true if the field is repeated.