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ObjectContainerBase.h

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// $Header: /nfs/slac/g/glast/ground/cvs/GaudiKernel/GaudiKernel/ObjectContainerBase.h,v 1.1.1.1 2001/04/18 18:14:18 tlindner Exp $
#ifndef GAUDI_OBJECTCONTAINERBASE_H
#define GAUDI_OBJECTCONTAINERBASE_H 1

// Include files
#include <iostream>
#include "GaudiKernel/Kernel.h"
#include "GaudiKernel/StreamBuffer.h"
#include "GaudiKernel/DataObject.h"
#include "GaudiKernel/StatusCode.h"

// Forward declarations
class ContainedObject;

class ObjectContainerBase : public DataObject  {

protected:
  ObjectContainerBase( const char* name = "unknown" )
    : DataObject(name) { }
  virtual ~ObjectContainerBase() { }

public:

  virtual StatusCode release(ContainedObject* value) = 0;

  virtual unsigned long release() { return DataObject::release( ); }

  virtual long distance( const ContainedObject* obj ) const = 0;

  virtual ContainedObject* containedObject( long dist ) = 0;
  virtual const ContainedObject* containedObject( long dist ) const = 0;

  virtual long numberOfObjects() const = 0;

  virtual void add(ContainedObject* pObject) = 0;

  virtual StreamBuffer& serialize( StreamBuffer& s ) const {
    DataObject::serialize(s);
    return s;
  }
  virtual StreamBuffer& serialize( StreamBuffer& s ) {
    DataObject::serialize(s);
    return s;
  }

  friend std::ostream& operator<< ( std::ostream& s, const ObjectContainerBase& obj ) {
    return obj.fillStream(s);
  }
  virtual std::ostream& fillStream( std::ostream& s ) const {
    return s;
  }

private:
};

#endif    // GAUDI_OBJECTCONTAINERBASE_H

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