osmium::index::RelationsMapIndex Class Reference

#include <relations_map.hpp>

Collaboration diagram for osmium::index::RelationsMapIndex:

Public Member Functions
	RelationsMapIndex ()=delete
	RelationsMapIndex (const RelationsMapIndex &)=delete
RelationsMapIndex &	operator= (const RelationsMapIndex &)=delete
	RelationsMapIndex (RelationsMapIndex &&) noexcept
RelationsMapIndex &	operator= (RelationsMapIndex &&) noexcept
	~RelationsMapIndex () noexcept=default
template<typename TFunc >
void	for_each (const osmium::unsigned_object_id_type id, TFunc &&func) const
bool	empty () const noexcept
std::size_t	size () const noexcept

Private Member Functions
	RelationsMapIndex (detail::rel_index_map_type< uint32_t > &&map)
	RelationsMapIndex (detail::rel_index_map_type< uint64_t > &&map)

Private Attributes
detail::rel_index_map_type< uint32_t >	m_map32
detail::rel_index_map_type< uint64_t >	m_map64
bool	m_small

Friends
class	RelationsMapStash
class	RelationsMapIndexes

Detailed Description

Index for looking up parent relation IDs given a member relation ID or the other way around.

You can not instantiate such an index yourself, instead you need to instantiate a RelationsMapStash, fill it and then create an index from it:

RelationsMapStash stash;
...
for_each_relation(const osmium::Relation& relation) {
   stash.add_members(relation);
}
...
const auto index = stash.build_member_to_parent_index();
...
osmium::unsigned_object_id_type member_id = ...;
index.for_each(member_id, [](osmium::unsigned_object_id_type parent_id) {
  ...
});
...

Constructor & Destructor Documentation

RelationsMapIndex() [1/5]

osmium::index::RelationsMapIndex::RelationsMapIndex ( detail::rel_index_map_type< uint32_t > &&  map )

inlineexplicitprivate

RelationsMapIndex() [2/5]

osmium::index::RelationsMapIndex::RelationsMapIndex ( detail::rel_index_map_type< uint64_t > &&  map )

inlineexplicitprivate

RelationsMapIndex() [3/5]

osmium::index::RelationsMapIndex::RelationsMapIndex ( )

delete

RelationsMapIndex() [4/5]

osmium::index::RelationsMapIndex::RelationsMapIndex ( const RelationsMapIndex &  )

delete

RelationsMapIndex() [5/5]

osmium::index::RelationsMapIndex::RelationsMapIndex ( RelationsMapIndex &&  )

inlinedefaultnoexcept

~RelationsMapIndex()

osmium::index::RelationsMapIndex::~RelationsMapIndex ( )

defaultnoexcept

Member Function Documentation

empty()

bool osmium::index::RelationsMapIndex::empty ( ) const

inlinenoexcept

Is this index empty?

Complexity: Constant.

for_each()

template<typename TFunc >

void osmium::index::RelationsMapIndex::for_each ( const osmium::unsigned_object_id_type  id, TFunc &&  func  ) const

inline

Find the given relation id in the index and call the given function with all related relation ids.

osmium::unsigned_object_id_type id = 17;
index.for_each(id, [](osmium::unsigned_object_id_type rid) {
  ...
});

Complexity: Logarithmic in the number of elements in the index. (Lookup uses binary search.)

operator=() [1/2]

RelationsMapIndex & osmium::index::RelationsMapIndex::operator= ( const RelationsMapIndex &  )

delete

operator=() [2/2]

RelationsMapIndex & osmium::index::RelationsMapIndex::operator= ( RelationsMapIndex &&  )

inlinedefaultnoexcept

size()

std::size_t osmium::index::RelationsMapIndex::size ( ) const

inlinenoexcept

How many entries are in this index?

Complexity: Constant.

Friends And Related Function Documentation

RelationsMapIndexes

friend class RelationsMapIndexes

friend

RelationsMapStash

friend class RelationsMapStash

friend

Member Data Documentation

m_map32

detail::rel_index_map_type<uint32_t> osmium::index::RelationsMapIndex::m_map32

private

m_map64

detail::rel_index_map_type<uint64_t> osmium::index::RelationsMapIndex::m_map64

private

m_small

bool osmium::index::RelationsMapIndex::m_small

private

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

• include/osmium/index/relations_map.hpp