Class: Gonzui::BDBDBM

Inherits:
AbstractDBM show all
Defined in:
lib/gonzui/bdbdbm.rb

Constant Summary

Constants inherited from AbstractDBM

AbstractDBM::DBTable, AbstractDBM::IDTable

Instance Method Summary collapse

Methods inherited from AbstractDBM

#binary_content?, #consistent?, #decrease_counter, #each_db_name, #each_format, #each_license, #each_package_name, #each_word, #find_all, #find_all_by_regexp, #find_word_info, #flush_cache, #get_all_word_info, #get_content, #get_content_hash, #get_content_info, #get_counter, #get_digest, #get_format_abbrev, #get_format_id, #get_format_id_from_path_id, #get_format_ids_from_package_id, #get_format_name, #get_license_abbrev, #get_license_id, #get_license_id_from_path_id, #get_license_ids_from_package_id, #get_license_name, #get_ncontents, #get_ncontents_by_format_id, #get_ncontents_by_license_id, #get_ncontents_in_package, #get_ncontents_indexed, #get_nformats, #get_nlines_indexed, #get_npackages, #get_nwords, #get_package_id, #get_package_id_from_path_id, #get_package_ids, #get_package_name, #get_package_names, #get_package_options, #get_path, #get_path_id, #get_path_ids, #get_path_ids_from_package_and_word_id, #get_source_uri, #get_type, #get_type_id, #get_word, #get_word_id, #get_word_ids, #has_format_abbrev?, #has_format_id?, #has_license_abbrev?, #has_license_id?, #has_package?, #has_path?, #has_type?, #has_word?, #increase_counter, #make_ncontents_by_format_key, #make_ncontents_by_license_key, #put_package_options, #put_pathid_wordids

Methods included from Util

assert, assert_equal, assert_equal_all, assert_non_nil, assert_not_reached, benchmark, command_exist?, commify, eprintf, format_bytes, program_name, protect_from_signals, require_command, set_verbosity, shell_escape, unix?, vprintf, windows?, wprintf

Constructor Details

#initialize(config, read_only = false) ⇒ BDBDBM

Returns a new instance of BDBDBM.



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# File 'lib/gonzui/bdbdbm.rb', line 16

def initialize(config, read_only = false)
  retried = false
  begin
    @db_mode  = if read_only then BDB::RDONLY else BDB::CREATE end
    env_flags = BDB::CREATE | BDB::INIT_MPOOL | BDB::INIT_LOCK
    options = {}
    options["set_cachesize"] = config.db_cache_size
    @db_env = BDB::Env.new(config.db_directory, env_flags, options)
    super(config, read_only)
  rescue BDB::Fatal => e
    raise e if retried
    retried = true
    #
    # "Lock table is out of available locker entries"
    # error ocasionally occurs if a process using
    # Gonzui::BDMDBM is killed by SIGKILL forcibly. In
    # that case, we can remove Berkeley DB Environment
    # to solve the error.
    #
    BDB::Env.remove(config.db_directory, BDB::FORCE)
    retry
  end
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/gonzui/bdbdbm.rb', line 62

def close
  super
  @db_env.close
end

#find_all_by_prefix(pattern) ⇒ Object 



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# File 'lib/gonzui/bdbdbm.rb', line 67

def find_all_by_prefix(pattern)
  results = []
  self.word_wordid.each_by_prefix(pattern) {|word, word_id|
    results.concat(collect_all_results(word_id))
  }
  return results
end