| The Gaudi Framework v28r2p1 (f1a77ff4)

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MetaData service for self-descriptive n-tuples

The service adds information about n-tuple production into the resulting n-tuple. These information include job options as well as application name and version. They are named 'info' and saved inside the n-tuple.

## Usage

Metadata can be added to n-tuples adding Gaudi::MetaDataSvc to the list of extra services in your options, for example with:

1 ApplicationMgr().ExtSvc += [ "Gaudi::MetaDataSvc" ]

The content of the metadata info in a file can be dumped with the command line tool `dumpMetaData` as in:

1 $ dumpMetaData TupleEx.root

An example on how to read the metadata from C++ is in the readMetaData.C example.