- Qt 6.7
- Qt Protobuf
- C++ Classes
- QtProtobuf (Technical Preview)
- QProtobufSerializer
- Qt 6.7.1 Reference Documentation

# QProtobufSerializer Class

The QProtobufSerializer class is interface that represents basic functions for serialization/deserialization. More...

Header: | #include <QProtobufSerializer>
CMake: | find_package(Qt6 REQUIRED COMPONENTS Protobuf) target_link_libraries(mytarget PRIVATE Qt6::Protobuf)
Since: | Qt 6.5
Inherits: | QProtobufBaseSerializer
Status: | Technical Preview

- List of all members, including inherited members

## Public Functions

| QProtobufSerializer()
virtual | ~QProtobufSerializer() override
`(since 6.7)` void | shouldPreserveUnknownFields(bool preserveUnknownFields)

## Reimplemented Public Functions

virtual QAbstractProtobufSerializer::DeserializationError | deserializationError() const override
virtual QString | deserializationErrorString() const override

## Detailed Description

The QProtobufSerializer class registers serializers/deserializers for classes implementing a protobuf message, inheriting QProtobufMessage. These classes are generated automatically, based on a `.proto` file, using the CMake function qt_add_protobuf or by running qtprotobufgen directly.

## Member Function Documentation

### QProtobufSerializer::QProtobufSerializer()

Constructs a new serializer instance.

### `[override virtual noexcept]` QProtobufSerializer::~QProtobufSerializer()

Destroys the serializer instance.

### `[override virtual]` QAbstractProtobufSerializer::DeserializationError QProtobufSerializer::deserializationError() const

Returns the last deserialization error.

### `[override virtual]` QString QProtobufSerializer::deserializationErrorString() const

Returns a human-readable string describing the last deserialization error. If there was no error, an empty string is returned.

### `[since 6.7]` void QProtobufSerializer::shouldPreserveUnknownFields(bool preserveUnknownFields)

Controls whether the unknown fields received from the wire should be stored in the resulting message or if it should be omitted, based on preserveUnknownFields.

This function was introduced in Qt 6.7.