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Struct template filter_factory

boost::log::filter_factory

Synopsis

// In header: <boost/log/utility/setup/filter_parser.hpp>

template<typename CharT> 
struct filter_factory {
  // types
  typedef CharT                          char_type;    // Character type. 
  typedef std::basic_string< char_type > string_type;  // String type. 

  // construct/copy/destruct
  filter_factory();
  filter_factory(filter_factory const &);
  filter_factory & operator=(filter_factory const &);
  ~filter_factory();

  // public member functions
  virtual filter on_exists_test(attribute_name const &);
  virtual filter 
  on_equality_relation(attribute_name const &, string_type const &);
  virtual filter 
  on_inequality_relation(attribute_name const &, string_type const &);
  virtual filter on_less_relation(attribute_name const &, string_type const &);
  virtual filter 
  on_greater_relation(attribute_name const &, string_type const &);
  virtual filter 
  on_less_or_equal_relation(attribute_name const &, string_type const &);
  virtual filter 
  on_greater_or_equal_relation(attribute_name const &, string_type const &);
  virtual filter 
  on_custom_relation(attribute_name const &, string_type const &, 
                     string_type const &);
};

Description

The interface class for all filter factories.

filter_factory public construct/copy/destruct

  1. filter_factory();

    Default constructor

  2. filter_factory(filter_factory const &);
  3. filter_factory & operator=(filter_factory const &);
  4. ~filter_factory();

    Virtual destructor

filter_factory public member functions

  1. virtual filter on_exists_test(attribute_name const & name);

    The callback for filter for the attribute existence test

  2. virtual filter 
    on_equality_relation(attribute_name const & name, string_type const & arg);

    The callback for equality relation filter

  3. virtual filter 
    on_inequality_relation(attribute_name const & name, string_type const & arg);

    The callback for inequality relation filter

  4. virtual filter 
    on_less_relation(attribute_name const & name, string_type const & arg);

    The callback for less relation filter

  5. virtual filter 
    on_greater_relation(attribute_name const & name, string_type const & arg);

    The callback for greater relation filter

  6. virtual filter 
    on_less_or_equal_relation(attribute_name const & name, 
                              string_type const & arg);

    The callback for less or equal relation filter

  7. virtual filter 
    on_greater_or_equal_relation(attribute_name const & name, 
                                 string_type const & arg);

    The callback for greater or equal relation filter

  8. virtual filter 
    on_custom_relation(attribute_name const & name, string_type const & rel, 
                       string_type const & arg);

    The callback for custom relation filter


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