HTask

class HTask : public TNamed

    public:

              virtual ~HTask()
       static TClass* Class()
       virtual Bool_t connectTask(HTask* task, Int_t n)
       virtual Bool_t finalize()
       virtual HTask* getComposite()
         virtual void getConnections()
       virtual HTask* getOwner()
       virtual HTask* getTask(Char_t* name)
       virtual Bool_t init()
      virtual TClass* IsA() const
         virtual void isTimed(Bool_t)
       virtual HTask* next(Int_t& errCode)
               HTask& operator=(const HTask&)
         virtual void printTimer()
       virtual Bool_t reinit()
         virtual void resetTimer()
       virtual Bool_t setConnections()
                 void setManual()
         virtual void setOwner(HTask* atask)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

      HTask* owner          
      Bool_t manual         
      Bool_t isInitialised  
      Bool_t isConnected    
      Bool_t fIsTimed       timer flag

Class Description

HTask

 This is the base class for a task (i.e. a transform data, take a decision
depending on some parameters ...). Examples of tasks are the HReconstructor
class which stands for a algorithm used to process event's data; the
HTaskSet class which corresponds to a set of generic tasks.

 The task is expected to be initialized using the init() function before the
first call to the next() function. This last method (next()) performs the
actual task and retrieves a pointer to the next task to be executed (or
NULL if there is no next task).

 The finalize() method does some clean-up and in general will be called in
the destructor. However it is provided as a separate function allowing the
posibility to reset the task (two consecutive calls to finalize() and init())
without destructing the object.

 The connectTask(aTask,n) function connects the task "aTask" as the next task
to be performed. "n" is an optional integer and its meaning can be defined
by each subclass.

Inline Functions

               void ~HTask()
             Bool_t connectTask(HTask* task, Int_t n)
             HTask* next(Int_t& errCode)
             HTask* getTask(Char_t* name)
             Bool_t init()
             Bool_t reinit()
             Bool_t finalize()
               void getConnections()
             HTask* getComposite()
             HTask* getOwner()
               void setOwner(HTask* atask)
             Bool_t setConnections()
               void setManual()
               void isTimed(Bool_t)
               void resetTimer()
               void printTimer()
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
             HTask& operator=(const HTask&)