public static class GeneratedMessage.GeneratedExtension<ContainingType,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 ExtendableMessage and ExtendableBuilder.
Inheritance
Object > ExtensionLite<ContainingType,Type> > Extension > GeneratedMessage.GeneratedExtension<ContainingType,Type>Type Parameters | |
|---|---|
| Name | Description |
ContainingType | |
Type | |
Methods
fromReflectionType(Object value)
protected Object fromReflectionType(Object value)Convert from the type used by the reflection accessors to the type used by native accessors. E.g., for enums, the reflection accessors use EnumValueDescriptors but the native accessors use the generated enum type.
| Parameter | |
|---|---|
| Name | Description |
value | Object |
| Returns | |
|---|---|
| Type | Description |
Object | |
getDefaultValue()
public Type getDefaultValue()Returns the default value of the extension field.
| Returns | |
|---|---|
| Type | Description |
Type | |
getDescriptor()
public Descriptors.FieldDescriptor getDescriptor()Returns the descriptor of the extension.
| Returns | |
|---|---|
| Type | Description |
Descriptors.FieldDescriptor | |
getExtensionType()
protected Extension.ExtensionType getExtensionType()| Returns | |
|---|---|
| Type | Description |
Extension.ExtensionType | |
getLiteType()
public WireFormat.FieldType getLiteType()Returns the type of the field.
| Returns | |
|---|---|
| Type | Description |
WireFormat.FieldType | |
getMessageDefaultInstance()
public Message getMessageDefaultInstance()If the extension is an embedded message or group, returns the default instance of the message.
| Returns | |
|---|---|
| Type | Description |
Message | |
getNumber()
public int getNumber()Returns the field number of the extension.
| Returns | |
|---|---|
| Type | Description |
int | |
internalInit(Descriptors.FieldDescriptor descriptor)
public void internalInit(Descriptors.FieldDescriptor descriptor)For use by generated code only.
| Parameter | |
|---|---|
| Name | Description |
descriptor | Descriptors.FieldDescriptor |
isRepeated()
public boolean isRepeated()Returns whether it is a repeated field.
| Returns | |
|---|---|
| Type | Description |
boolean | |
singularFromReflectionType(Object value)
protected Object singularFromReflectionType(Object value)Like #fromReflectionType(Object), but if the type is a repeated type, this converts a single element.
| Parameter | |
|---|---|
| Name | Description |
value | Object |
| Returns | |
|---|---|
| Type | Description |
Object | |
singularToReflectionType(Object value)
protected Object singularToReflectionType(Object value)Like #toReflectionType(Object), but if the type is a repeated type, this converts a single element.
| Parameter | |
|---|---|
| Name | Description |
value | Object |
| Returns | |
|---|---|
| Type | Description |
Object | |
toReflectionType(Object value)
protected Object toReflectionType(Object value)Convert from the type used by the native accessors to the type used by reflection accessors. E.g., for enums, the reflection accessors use EnumValueDescriptors but the native accessors use the generated enum type.
| Parameter | |
|---|---|
| Name | Description |
value | Object |
| Returns | |
|---|---|
| Type | Description |
Object | |