openHAB

Class: OpenHAB::Core::Items::StateStorage

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/openhab/core/items/state_storage.rb

Overview

Delegates state storage to a Hash providing methods to operate with states

Instance Method Summary collapse

Instance Method Details

#changed? ⇒ true, false

Detect if any items have changed states since being stored

Returns:

  • (true, false) —

    True if any items have changed states, false otherwise



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# File 'lib/openhab/core/items/state_storage.rb', line 47

def changed?
  any? { |item, value| item.state != value }
end

#restore ⇒ void

This method returns an undefined value.

Restore the stored states of all items



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# File 'lib/openhab/core/items/state_storage.rb', line 29

def restore
  $events.restore_states(to_h)
end

#restore_changes ⇒ void

This method returns an undefined value.

Restore states for items that have changed



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# File 'lib/openhab/core/items/state_storage.rb', line 38

def restore_changes
  $events.restore_states(select { |item, value| item.state != value })
end