Class: Mongo::Event::DescriptionChanged

Inherits:

Object

• Object
• Mongo::Event::DescriptionChanged

Defined in:

lib/mongo/event/description_changed.rb

Overview

This handles a change in description.

Since:

• 2.0.6

Instance Attribute Summary

• #cluster ⇒ Mongo::Cluster readonly

  Cluster The event publisher.

Instance Method Summary

• #handle(updated) ⇒ Object

  This event publishes an event to add the cluster and logs the configuration change.

• #initialize(cluster) ⇒ DescriptionChanged constructor

  Initialize the new host added event handler.

Constructor Details

#initialize(cluster) ⇒ DescriptionChanged

Initialize the new host added event handler.

Examples:

Create the new handler.

ServerAdded.new(cluster)

Parameters:

• cluster (Mongo::Cluster) —

  The cluster to publish from.

Since:

• 2.0.0

# File 'lib/mongo/event/description_changed.rb', line 35

def initialize(cluster)
  @cluster = cluster
end

Instance Attribute Details

#cluster ⇒ Mongo::Cluster (readonly)

Returns cluster The event publisher.

Returns:

• (Mongo::Cluster) —

  cluster The event publisher.

Since:

• 2.0.6

# File 'lib/mongo/event/description_changed.rb', line 25

def cluster
  @cluster
end

Instance Method Details

#handle(updated) ⇒ Object

This event publishes an event to add the cluster and logs the configuration change.

Examples:

Handle the event.

server_added.handle('127.0.0.1:27018')

Parameters:

• updated (Server::Description) —

  The changed description.

Since:

• 2.0.0

# File 'lib/mongo/event/description_changed.rb', line 48

def handle(updated)
  cluster.add_hosts(updated)
  cluster.remove_hosts(updated)
end