predicate.h

// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//
// $Id: predicate.h,v 1.24 2005/10/23 12:02:19 oliver Exp $
//

#ifndef BALL_KERNEL_PREDICATE_H
#define BALL_KERNEL_PREDICATE_H

#ifndef BALL_COMMON_RTTI_H
# include <BALL/COMMON/rtti.h>
#endif

#ifndef BALL_CONCEPT_PREDICATE_H
# include <BALL/CONCEPT/predicate.h>
#endif

#ifndef BALL_CONCEPT_COMPOSITE_H
# include <BALL/CONCEPT/composite.h>
#endif

namespace BALL 
{
  

#ifndef BALL_KERNEL_PREDICATE_TYPE
#define BALL_KERNEL_PREDICATE_TYPE
  typedef UnaryPredicate<Composite> KernelPredicateType;
#endif

  template <class T>
  class KernelPredicate
    : public UnaryPredicate<Composite>
  {
    public:

    virtual bool operator () (const Composite& composite) const;
    virtual ~KernelPredicate() {}
  };

  template <class T>
  bool KernelPredicate<T>::operator () (const Composite& composite) const
  {
    return RTTI::isKindOf<T>(composite);
  }


} // namespace BALL


#endif // BALL_KERNEL_PREDICATE_H

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