---

SimpleCopier.hpp

Go to the documentation of this file.

//
// SimpleCopier
//
// 24 September 2004 -- tds
//
// SimpleCopier just makes a copy of a query tree and stores it.
// This is useful for keeping a copy of a query tree around.
//

#ifndef INDRI_SIMPLECOPIER_HPP
#define INDRI_SIMPLECOPIER_HPP

#include "Copier.hpp"

class SimpleCopier : public indri::lang::Copier {
private:
  std::vector<indri::lang::Node*> _nodes;

public:
  ~SimpleCopier() {
    delete_vector_contents( _nodes );
  }

  indri::lang::Node* defaultAfter( indri::lang::Node* oldNode, indri::lang::Node* newNode ) {
    _nodes.push_back(newNode);
    return newNode;
  }

  indri::lang::Node* root() {
    if( _nodes.size() )
      return _nodes.back();
    return 0;
  }
};

#endif // INDRI_SIMPLECOPIER_HPP

---