openHAB

Class: OpenHAB::Core::Items::NumberItem

Inherits:
GenericItem show all
Includes:
NumericItem
Defined in:
lib/openhab/core/items/number_item.rb

Overview

A NumberItem has a decimal value and is usually used for all kinds of sensors, like temperature, brightness, wind, etc. It can also be used as a counter or as any other thing that can be expressed as a number.

Non-dimensioned numbers will have a state of DecimalType, while dimensioned numbers will have a state of QuantityType. Be sure to read the documentation for those two classes for how to work with the different states of a NumberItem.

Examples:

Number Items can be selected in an enumerable with grep.

# Get all NumberItems
items.grep(NumberItem)
     .each { |number| logger.info("#{item.name} is a Number Item") }

Constant Summary

Constants included from Semantics

Semantics::Equipment, Semantics::Location, Semantics::Point, Semantics::Property, Semantics::Tag

Constants included from Persistence

Persistence::HistoricState

Instance Attribute Summary collapse

Attributes inherited from GenericItem

#category, #formatted_state, #label, #name, #raw_state, #tags

Attributes included from Semantics

#equipment, #equipment_type, #location, #location_type, #point_type, #property_type, #semantic_type

Attributes included from Item

#accepted_command_types, #accepted_data_types, #all_groups, #channel, #channel_uid, #channel_uids, #channels, #groups, #links, #metadata, #name, #provider, #thing, #things

Instance Method Summary collapse

Methods inherited from GenericItem

#command, #modify, #null?, #refresh, #state?, #time_series=, #undef?, #update

Methods included from Semantics

add, #equipment?, #location?, lookup, #point?, #points, remove, #semantic?, tags

Methods included from Item

#call_item?, #color_item?, #contact_item?, #date_time_item?, #dimmer_item?, #group_item?, #image_item?, #inspect, #link, #location_item?, #member_of?, #number_item?, #player_item?, #rollershutter_item?, #string_item?, #switch_item?, #tagged?, #to_s, #unlink

Methods included from DSL::Items::TimedCommand

#command

Methods included from Persistence

#all_states_between, #all_states_since, #all_states_until, #average_between, #average_since, #average_until, #changed_between?, #changed_since?, #changed_until?, #count_between, #count_since, #count_state_changes_between, #count_state_changes_since, #count_state_changes_until, #count_until, #delta_between, #delta_since, #delta_until, #deviation_between, #deviation_since, #deviation_until, #evolution_rate, #evolution_rate_between, #evolution_rate_since, #evolution_rate_until, #historic_state, #last_change, #last_update, #maximum_between, #maximum_since, #maximum_until, #median_between, #median_since, #median_until, #minimum_between, #minimum_since, #minimum_until, #next_change, #next_state, #next_update, #persist, #persisted_state, #previous_state, #remove_all_states_between, #remove_all_states_since, #remove_all_states_until, #sum_between, #sum_since, #sum_until, #updated_between?, #updated_since?, #updated_until?, #variance_between, #variance_since, #variance_until

Methods included from DSL::Items::Ensure::Ensurable

#ensure

Instance Attribute Details

#dimension ⇒ Class? (readonly)

Returns The dimension of the number item.

Returns:

  • (Class, nil) —

    The dimension of the number item.



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
 
# File 'lib/openhab/core/items/number_item.rb', line 34

class NumberItem < GenericItem
  include NumericItem

  # raw numbers translate directly to {DecimalType}, not a string
  # @!visibility private
  def format_type(command)
    if command.is_a?(Numeric)
      if unit && (target_unit = DSL.unit(unit.dimension) || unit)
        return Types::QuantityType.new(command, target_unit)
      end

      return Types::DecimalType.new(command)
    end

    super
  end

  # @!visibility private
  def config_eql?(other)
    super && dimension == other.dimension
  end

  protected

  # Adds the unit dimension
  def type_details
    ":#{dimension}" if dimension
  end
end

#state ⇒ DecimalType, ... (readonly)

Returns:



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
 
# File 'lib/openhab/core/items/number_item.rb', line 34

class NumberItem < GenericItem
  include NumericItem

  # raw numbers translate directly to {DecimalType}, not a string
  # @!visibility private
  def format_type(command)
    if command.is_a?(Numeric)
      if unit && (target_unit = DSL.unit(unit.dimension) || unit)
        return Types::QuantityType.new(command, target_unit)
      end

      return Types::DecimalType.new(command)
    end

    super
  end

  # @!visibility private
  def config_eql?(other)
    super && dimension == other.dimension
  end

  protected

  # Adds the unit dimension
  def type_details
    ":#{dimension}" if dimension
  end
end

#unit ⇒ javax.measure.Unit? (readonly)

Returns:



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
 
# File 'lib/openhab/core/items/number_item.rb', line 34

class NumberItem < GenericItem
  include NumericItem

  # raw numbers translate directly to {DecimalType}, not a string
  # @!visibility private
  def format_type(command)
    if command.is_a?(Numeric)
      if unit && (target_unit = DSL.unit(unit.dimension) || unit)
        return Types::QuantityType.new(command, target_unit)
      end

      return Types::DecimalType.new(command)
    end

    super
  end

  # @!visibility private
  def config_eql?(other)
    super && dimension == other.dimension
  end

  protected

  # Adds the unit dimension
  def type_details
    ":#{dimension}" if dimension
  end
end

Instance Method Details

#type_details ⇒ Object (protected)

Adds the unit dimension



59
60
61
 
# File 'lib/openhab/core/items/number_item.rb', line 59

def type_details
  ":#{dimension}" if dimension
end