English

Google App Engine

The Variant Class

Experimental!

ProtoRPC is an experimental, innovative, and rapidly changing new feature for App Engine. Unfortunately, being on the bleeding edge means that we may make backwards-incompatible changes to ProtoRPC. We will inform the community when this feature is no longer experimental.

The protobuf wire format uses the Variant class to determine how to transmit a single piece of data. May be used by other formats; see Protocol Buffers Encoding for more information.

Variant is provided by the protorpc.messages module.

Variant has the following values:

BOOL
Boolean value (True or False)
BYTES
String of 8-bit bytes.
DOUBLE
64-bit floating point number.
ENUM
Enum value (an integer).
FLOAT
32-bit floating point number.
INT32
32-bit signed integer.
INT64
64-bit signed integer.
MESSAGE
Embedded message as byte string.
SINT32
32-bit signed integer. Uses ZigZag encoding.
SINT64
64-bit signed integer. Uses ZigZag encoding.
STRING
String of UTF-8-encoded text.
UINT32
32-bit unsigned integer.
UINT64
64-bit unsigned integer.