LEARNER::multi_example_handler< context_type > Class Template Reference

Public Member Functions
	multi_example_handler (const context_type context)
	~multi_example_handler ()
void	on_example (example *ec)

Private Member Functions
bool	complete_multi_ex (example *ec)
bool	try_complete_multi_ex (example *ec)

Private Attributes
context_type	_context
multi_ex	ec_seq

Detailed Description

template<typename context_type>
class LEARNER::multi_example_handler< context_type >

Definition at line 162 of file learner.cc.

Constructor & Destructor Documentation

multi_example_handler()

template<typename context_type >

LEARNER::multi_example_handler< context_type >::multi_example_handler ( const context_type  context )

inline

Definition at line 195 of file learner.cc.

: _context(context) {}

~multi_example_handler()

template<typename context_type >

LEARNER::multi_example_handler< context_type >::~multi_example_handler ( )

inline

Definition at line 197 of file learner.cc.

  {
    if (!ec_seq.empty())
    {
      _context.template process<multi_ex, learn_multi_ex>(ec_seq);
    }
  }

Member Function Documentation

complete_multi_ex()

template<typename context_type >

bool LEARNER::multi_example_handler< context_type >::complete_multi_ex ( example *  ec )

inlineprivate

Definition at line 165 of file learner.cc.

References LEARNER::example_is_newline_not_header(), VW::finish_example(), and example::l.

  {
    auto& master = _context.get_master();
    const bool is_test_ec = master.p->lp.test_label(&ec->l);
    const bool is_newline = (example_is_newline_not_header(*ec, master) && is_test_ec);
    if (!is_newline)
    {
      ec_seq.push_back(ec);
    }
    else
    {
      VW::finish_example(master, *ec);
    }
    return is_newline;
  }

on_example()

template<typename context_type >

void LEARNER::multi_example_handler< context_type >::on_example ( example *  ec )

inline

Definition at line 205 of file learner.cc.

  {
    if (try_complete_multi_ex(ec))
    {
      _context.template process<multi_ex, learn_multi_ex>(ec_seq);
      ec_seq.clear();
    }
  }

try_complete_multi_ex()

template<typename context_type >

bool LEARNER::multi_example_handler< context_type >::try_complete_multi_ex ( example *  ec )

inlineprivate

Definition at line 181 of file learner.cc.

References example::end_pass, example_predict::indices, LEARNER::is_save_cmd(), and v_array< T >::size().

  {
    if (ec->indices.size() > 1)  // 1+ nonconstant feature. (most common case first)
      return complete_multi_ex(ec);
    else if (ec->end_pass)
      _context.template process<example, end_pass>(*ec);
    else if (is_save_cmd(ec))
      _context.template process<example, save>(*ec);
    else
      return complete_multi_ex(ec);
    return false;
  }

Member Data Documentation

_context

template<typename context_type >

context_type LEARNER::multi_example_handler< context_type >::_context

private

Definition at line 215 of file learner.cc.

ec_seq

template<typename context_type >

multi_ex LEARNER::multi_example_handler< context_type >::ec_seq

private

Definition at line 216 of file learner.cc.

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The documentation for this class was generated from the following file:

• /mnt/c/w/linux/vowpal_wabbit/vowpalwabbit/learner.cc