CoderMapsBundle class

An instance of this class stores CoderMap instances to be used for text and binary wire formats as well as encoder and decoder directions.

A PG::BasicTypeRegistry::CoderMapsBundle instance retrieves all type definitions from the PostgreSQL server and matches them with the coder definitions of the global PG::BasicTypeRegistry . It provides 4 separate CoderMap instances for the combinations of the two formats and directions.

A PG::BasicTypeRegistry::CoderMapsBundle instance can be used to initialize an instance of

• PG::BasicTypeMapForResults

• PG::BasicTypeMapForQueries

• PG::BasicTypeMapBasedOnResult

by passing it instead of the connection object like so:

conn = PG::Connection.new
maps = PG::BasicTypeRegistry::CoderMapsBundle.new(conn)
conn.type_map_for_results = PG::BasicTypeMapForResults.new(maps)

# File lib/pg/basic_type_registry.rb, line 112
                def initialize(connection, registry: nil)
                        registry ||= DEFAULT_TYPE_REGISTRY

                        result = connection.exec(<<-SQL).to_a
                                SELECT t.oid, t.typname, t.typelem, t.typdelim, ti.proname AS typinput
                                FROM pg_type as t
                                JOIN pg_proc as ti ON ti.oid = t.typinput
                        SQL

                        init_maps(registry, result.freeze)
                        freeze
                end

# File lib/pg/basic_type_registry.rb, line 141
def each_format(direction)
        @maps.map { |f| f[direction] }
end

# File lib/pg/basic_type_registry.rb, line 145
def map_for(format, direction)
        @maps[format][direction]
end