File FrameCategories.h

namespace podio

Functions

inline std::string collMetadataParamName(const std::string &collName, const std::string &paramName)

Create a parameterName that encodes the collection name and the parameter Name into one string.

This codifies a convention that was decided on to store collection level parameters. These are parameters / metadata that are valid for all collections of a given name in a file, e.g. CellID encoding strings. These parameters are usually stored in a dedicated metadata Frame inside a file, see the predefined category names in the Category namespace.

Parameters:

• collName – the name of the collection

• paramName – the name of the parameter

Returns:

A single key string that combines the collection and parameter name

namespace Category

This namespace mimics an enum (at least in its usage) and simply defines either commonly used category names, or category names that form a convention.

Variables

constexpr const auto Event = "events"

The event category.

constexpr const auto Run = "runs"

The run category.

constexpr const auto Metadata = "metadata"

The metadata category that is used to store a single Frame that holds data that is valid for a whole file, e.g.

collection level parameters