seqan3::detail::search_configurator Class Reference

Class used to update the search configuration, e.g. add defaults. More...

#include <seqan3/search/detail/search_configurator.hpp>

Classes
struct	select_search_algorithm
	Selects the search algorithm based on the index type. More...
struct	select_search_result
	Select the search result based on the configuration and the index type. More...

Static Public Member Functions
template<typename configuration_t >
static auto	add_default_hit_configuration (configuration_t const &cfg)
	Add seqan3::search_cfg::hit_all to the configuration if no search strategy (hit configuration) was chosen.
template<typename configuration_t >
static auto	add_default_output_configuration (configuration_t const &cfg)
	Add seqan3::search_cfg::text_position to the configuration if seqan3::search_cfg::output was not set.
template<typename configuration_t >
static auto	add_defaults (configuration_t const &cfg)
	Adds default configurations if they were not set by the user.
template<typename query_t , typename configuration_t , typename index_t >
static auto	configure_algorithm (configuration_t const &cfg, index_t const &index)
	Chooses the appropriate search algorithm depending on the index.
template<typename algorithm_t , typename configuration_t , typename index_t >
static algorithm_t	configure_hit_strategy (configuration_t const &, index_t const &)
	Configures the algorithm with the correct hit strategy.
template<typename algorithm_t , typename configuration_t , typename index_t >
static algorithm_t	select_and_return_algorithm (configuration_t const &config, index_t const &index)
	Select and return the configured search algorithm.

Detailed Description

Class used to update the search configuration, e.g. add defaults.

Member Function Documentation

add_default_hit_configuration()

template<typename configuration_t >

static auto seqan3::detail::search_configurator::add_default_hit_configuration ( configuration_t const &  cfg )

inlinestatic

Add seqan3::search_cfg::hit_all to the configuration if no search strategy (hit configuration) was chosen.

Template Parameters

configuration_t

The type of the search configuration.

Parameters

[in]

cfg

The configuration to be modified if necessary.

Returns

The configuration which is guaranteed to have a hit configuration element available.

If no hit configuration was set, it defaults to seqan3::search_cfg::hit_all.

add_default_output_configuration()

template<typename configuration_t >

static auto seqan3::detail::search_configurator::add_default_output_configuration ( configuration_t const &  cfg )

inlinestatic

Add seqan3::search_cfg::text_position to the configuration if seqan3::search_cfg::output was not set.

Template Parameters

configuration_t

The type of the search configuration.

Parameters

[in]

cfg

The configuration to be modified if necessary.

Returns

The configuration which is guaranteed to have a seqan3::search_cfg::output available.

If seqan3::search_cfg::output was not set, it defaults to seqan3::search_cfg::text_position.

add_defaults()

template<typename configuration_t >

static auto seqan3::detail::search_configurator::add_defaults ( configuration_t const &  cfg )

inlinestatic

Adds default configurations if they were not set by the user.

Template Parameters

configuration_t

The type of the search configuration.

Parameters

[in]

cfg

The configuration to be modified.

Returns

The modified configuration.

Modifies the configuration object by adding default configuration elements.

See also

seqan3::details::search_configurator::add_default_hit_configuration

seqan3::details::search_configurator::add_default_output_configuration

configure_algorithm()

template<typename query_t , typename configuration_t , typename index_t >

static auto seqan3::detail::search_configurator::configure_algorithm ( configuration_t const &  cfg, index_t const &  index  )

inlinestatic

Chooses the appropriate search algorithm depending on the index.

Template Parameters

query_t	An explicit template argument for the query type the search algorithm is invoked with.
configuration_t	The type of the search configuration.
index_t	The type of the index.

Parameters

[in]	cfg	The search configuration object that is passed to the algorithm.
[in]	index	The index that is passed to the algorithm.

Returns

A search algorithm.

If the cursor of index_t models seqan3::detail::template_specialisation_of a seqan3::bi_fm_index_cursor, then the seqan3::detail::search_scheme_algorithm is chosen. Otherwise, the seqan3::detail::unidirectional_search_algorithm is chosen.

configure_hit_strategy()

template<typename algorithm_t , typename configuration_t , typename index_t >

algorithm_t seqan3::detail::search_configurator::configure_hit_strategy ( configuration_t const &  cfg, index_t const &  index  )

static

Configures the algorithm with the correct hit strategy.

Template Parameters

algorithm_t	The type erased algorithm used for the fixed return type.
configuration_t	The type of the search configuration.
index_t	The type of the index.

Returns

The configured search algorithm.

If the algorithm was configured with the dynamic hit configuration element seqan3::search_cfg::hit, the configuration element is removed and replaced by the selected static hit configuration element. If the hit configuration element is already a static one nothing is changed in the configuration. After selecting the correct hit strategy the corresponding search algorithm is created with the new configuration and the given index.

Exceptions

std::invalid_argument

if the dynamic hit configuration was not initialised with a hit strategy.

If no hit configuration was configured a static assert is emitted during compilation.

select_and_return_algorithm()

template<typename algorithm_t , typename configuration_t , typename index_t >

static algorithm_t seqan3::detail::search_configurator::select_and_return_algorithm ( configuration_t const &  config, index_t const &  index  )

inlinestatic

Select and return the configured search algorithm.

Template Parameters

algorithm_t	The type erased algorithm used for the fixed return type.
configuration_t	The type of the search configuration.
index_t	The type of the index.

Parameters

[in]	config	The search configuration object that is passed to the algorithm.
[in]	index	The index that is passed to the algorithm.

The final step of the configuration pipeline. Here the final algorithm is created and returned as the type erased std::function object. This step must be called at the end.

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

• search_configurator.hpp