class HParSet: public TNamed

_HADES_CLASS_DESCRIPTION

  HParSet

  Base class for all parameter containers

  Parameter containers are typically created via the container factories (library
  specific classes derived from HContFact) and stored in the runtime database HRuntimeDb
  for initialization. Each parameter container is directly derived from HParSet or from
  HParCond (derived itself from HParSet).

  Data members:
    name, title     name and title of the parameter container and set in the constructor
    context         String to define a special flavor for the parameters
                    For classes directly derived from HParSet, the context in not
                    mandatory. The context defined in the constructor is the default
                    context. Others may be set via the container factory.
    detName         name of the corresponding detector
                    It is mandatory for all parameter containers which might initialize
                    only a subset of the modules or want to check if all modules in the
                    setup are initialized from one or two inputs
    versions[3]     version[0]   actually not used
                    version[1] = version of the parameters taken from the first input
                    version[2] = version of the parameters taken from the second input
    status          By default this flag is kFALSE and the parameters are initialized
                    for each run. Once set kTRUE, the containers is skipped in the
                    automatic initialization in the runtime database.
                    Set function:  void setStatic(Bool_t flag=kTRUE)
                    Get function:  Bool_t isStatic()
    changed         By default this flag is kFALSE and set kTRUE after each initialization,
                    which signals, that the container must be written to the output before
                    the data are overwritten by the next initialization or before the
                    container is deleted. The write function then again resets the flag.
                    Set function:  void setChanged(Bool_t flag=kTRUE)
                    Get function:  Bool_t hasChanged()
    author, description    comments for the parameters in Oracle

  Virtual functions which must be implemented in the derived class:
    Bool_t init(HParIo*,Int_t*)
        This function initializes the container from an input using the detector specific
        interface class of type HDetParIo.
        Eventually the integer array is used to read only a subset of data.
    Int_t write(HParIo*)
        This function writes the container to an output using the detector specific
        interface class of type HDetParIo.
    void clear()
        This functions clears the container and resets the input/output versions