Class podio::UserDataCollection

template<typename BasicType, typename = EnableIfSupportedUserType<BasicType>> class UserDataCollection : public podio::CollectionBase 

Collection of basic types for additional user data not defined in the EDM.

The data is stored in an std::vector<basic_type>. Supported are all basic types supported in PODIO, i.e. float, double and 8-64 bit fixed size signed and unsigned integers -

See also

SupportedUserDataTypes.

Author: F.Gaede, DESY
Date: Sep 2021

Public Functions

UserDataCollection() = default

inline UserDataCollection(std::vector<BasicType> &&vec): Constructor from an existing vector (which will be moved from!)

UserDataCollection(const UserDataCollection&) = delete

UserDataCollection &operator=(const UserDataCollection&) = delete

UserDataCollection(UserDataCollection&&) = default

UserDataCollection &operator=(UserDataCollection&&) = default

~UserDataCollection() = default

inline virtual void prepareForWrite() const override: prepare buffers for serialization

inline virtual void prepareAfterRead() override: re-create collection from buffers after read

inline virtual bool setReferences(const ICollectionProvider*) override: initialize references after read

inline virtual void setID(uint32_t id) override: set collection ID

inline virtual uint32_t getID() const override: get collection ID

inline virtual podio::CollectionWriteBuffers getBuffers() override: Get the collection buffers for this collection.

inline virtual bool isValid() const override: check for validity of the container after read

inline virtual size_t size() const override: number of elements in the collection

inline virtual bool empty() const override: Is the collection empty.

inline virtual const std::string_view getTypeName() const override: fully qualified type name

inline virtual const std::string_view getValueTypeName() const override: fully qualified type name of elements - with namespace

inline virtual const std::string_view getDataTypeName() const override: fully qualified type name of stored POD elements - with namespace

inline virtual void clear() override: clear the collection and all internal states

inline virtual bool isSubsetCollection() const override: check if this collection is a subset collection - no subset possible

inline virtual void setSubsetCollection(bool) override: declare this collection to be a subset collection - no effect

inline virtual SchemaVersionT getSchemaVersion() const final: The schema version is fixed manually.

inline virtual void print(std::ostream &os = std::cout, bool flush = true) const override: Print this collection to the passed stream.

inline virtual size_t getDatamodelRegistryIndex() const override: Get the index in the DatatypeRegistry of the EDM this collection belongs to.

inline std::vector<BasicType>::iterator begin()

inline std::vector<BasicType>::iterator end()

inline std::vector<BasicType>::const_iterator begin() const

inline std::vector<BasicType>::const_iterator end() const

inline std::vector<BasicType>::reference operator[](size_t idx)

inline std::vector<BasicType>::const_reference operator[](size_t idx) const

inline void resize(size_t count)

inline void push_back(const BasicType &value)

inline std::vector<BasicType> &vec(): access to the actual data vector

inline const std::vector<BasicType> &vec() const: const access to the actual data vector

Public Static Attributes

static constexpr SchemaVersionT schemaVersion = 1: The schema version of UserDataCollections.

static constexpr auto typeName = userDataCollTypeName<BasicType>()

static constexpr auto valueTypeName = userDataTypeName<BasicType>()

static constexpr auto dataTypeName = userDataTypeName<BasicType>()