Class: Mongo::Cluster::Topology::LoadBalanced

Inherits:
Base
  • Object
show all
Defined in:
lib/mongo/cluster/topology/load_balanced.rb

Overview

Defines behavior for when a cluster is in load-balanced topology.

Since:

  • 2.0.0

Constant Summary collapse

NAME =

The display name for the topology.

Since:

  • 2.0.0

'LoadBalanced'.freeze

Constants included from Loggable

Loggable::PREFIX

Instance Attribute Summary

Attributes inherited from Base

#compatibility_error, #logical_session_timeout, #monitoring, #options, #server_descriptions

Attributes included from Monitoring::Publishable

#monitoring

Instance Method Summary collapse

Methods inherited from Base

#addresses, #compatible?, #data_bearing_servers?, #initialize, #max_election_id, #max_set_version, #new_max_election_id, #new_max_set_version, #replica_set_name, #server_hosts_match_any?

Methods included from Monitoring::Publishable

#publish_cmap_event, #publish_event, #publish_sdam_event

Methods included from Loggable

#log_debug, #log_error, #log_fatal, #log_info, #log_warn, #logger

Constructor Details

This class inherits a constructor from Mongo::Cluster::Topology::Base

Instance Method Details

#display_name ⇒ String

Get the display name.

Returns:

  • (String) —

    The display name.

Since:

  • 2.0.0



31
32
33
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 31

def display_name
  self.class.name.gsub(/.*::/, '')
end

#has_readable_server?(cluster, server_selector = nil) ⇒ true

Determine if the topology would select a readable server for the provided candidates and read preference.

Parameters:

  • cluster (Cluster) —

    The cluster.

  • server_selector (ServerSelector) (defaults to: nil) —

    The server selector.

Returns:

  • (true) —

    A standalone always has a readable server.

Since:

  • 2.0.0



51
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 51

def has_readable_server?(cluster, server_selector = nil); true; end

#has_writable_server?(cluster) ⇒ true

Determine if the topology would select a writable server for the provided candidates.

Parameters:

  • cluster (Cluster) —

    The cluster.

Returns:

  • (true) —

    A standalone always has a writable server.

Since:

  • 2.0.0



59
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 59

def has_writable_server?(cluster); true; end

#replica_set? ⇒ false

Returns whether this topology is one of the replica set ones.

Returns:

  • (false) —

    Always false.

Since:

  • 2.0.0



64
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 64

def replica_set?; false; end

#servers(servers, name = nil) ⇒ Array<Server>

Select appropriate servers for this topology.

Parameters:

  • servers (Array<Server>) —

    The known servers.

Returns:

  • (Array<Server>) —

    All of the known servers.

Since:

  • 2.0.0



71
72
73
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 71

def servers(servers, name = nil)
  servers
end

#sharded? ⇒ false

Returns whether this topology is sharded.

Returns:

  • (false) —

    Always false.

Since:

  • 2.0.0



78
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 78

def sharded?; false; end

#single? ⇒ true

Returns whether this topology is Single.

Returns:

  • (true) —

    Always false.

Since:

  • 2.0.0



83
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 83

def single?; false; end

#summary ⇒ Object

Note:

This method is experimental and subject to change.

Since:

  • 2.0.0



38
39
40
41
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 38

def summary
  details = server_descriptions.keys.join(',')
  "#{display_name}[#{details}]"
end

#unknown? ⇒ false

Returns whether this topology is Unknown.

Returns:

  • (false) —

    Always false.

Since:

  • 2.0.0



88
 
# File 'lib/mongo/cluster/topology/load_balanced.rb', line 88

def unknown?; false; end