Class: ODBA::IdServer

Inherits:

Object

• Object
• ODBA::IdServer

Includes:

Persistable

Defined in:

lib/odba/id_server.rb

Constant Summary

ODBA_SERIALIZABLE =

['@ids']

ODBA_EXCLUDE_VARS =

['@mutex']

Constants included from Persistable

Persistable::Exact, Persistable::Find, Persistable::ODBA_INDEXABLE, Persistable::ODBA_PREDEFINE_EXCLUDE_VARS, Persistable::ODBA_PREDEFINE_SERIALIZABLE, Persistable::ODBA_PREFETCH

Instance Attribute Summary

Attributes included from Persistable

#odba_id, #odba_name, #odba_persistent, #odba_prefetch

Instance Method Summary

• #initialize ⇒ IdServer constructor

  A new instance of IdServer.

• #next_id(key, startval = 1) ⇒ Object

Methods included from Persistable

#==, append_features, #dup, #eql?, #odba_add_observer, #odba_collection, #odba_cut_connection, #odba_delete, #odba_delete_observer, #odba_delete_observers, #odba_dup, #odba_exclude_vars, #odba_indexable?, #odba_isolated_dump, #odba_isolated_store, #odba_isolated_stub, #odba_isolated_twin, #odba_notify_observers, #odba_observers, #odba_potentials, #odba_prefetch?, #odba_replace!, #odba_replace_persistables, #odba_replace_stubs, #odba_restore, #odba_serializables, #odba_snapshot, #odba_store, #odba_store_unsaved, #odba_stubize, #odba_take_snapshot, #odba_target_ids, #odba_unsaved?, #odba_unsaved_neighbors, sanitize

Constructor Details

#initialize ⇒ IdServer

Returns a new instance of IdServer.

# File 'lib/odba/id_server.rb', line 12

def initialize
	@ids = {}
end

Instance Method Details

#next_id(key, startval = 1) ⇒ Object

# File 'lib/odba/id_server.rb', line 15

def next_id(key, startval=1)
	@mutex ||= Mutex.new
	res = nil
	@mutex.synchronize { 
		@ids[key] ||= (startval - 1)
		res = @ids[key] += 1
	}
	odba_store
	res
end