openHAB

Class: OpenHAB::Core::Things::Channel

Inherits:
Object
  • Object
show all
Defined in:
lib/openhab/core/things/channel.rb

Overview

Channel is a part of a Thing that represents a functionality of it. Therefore Items can be linked a to a channel.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#item ⇒ Item? (readonly)

Return the item if this channel is linked with an item. If a channel is linked to more than one item, this method only returns the first item.

Returns:



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# File 'lib/openhab/core/things/channel.rb', line 26

class Channel
  extend Forwardable

  delegate %i[item items thing] => :uid

  # @return [String]
  def inspect
    r = "#<OpenHAB::Core::Things::Channel #{uid}"
    r += " #{label.inspect}" if label
    r += " description=#{description.inspect}" if description
    r += " kind=#{kind.inspect}"
    r += " channel_type_uid=#{channel_type_uid.inspect}" if channel_type_uid
    r += " configuration=#{configuration.properties.to_h}" unless configuration.properties.empty?
    r += " properties=#{properties.to_h}" unless properties.empty?
    r += " default_tags=#{default_tags.to_a}" unless default_tags.empty?
    r += " auto_update_policy=#{auto_update_policy}" if auto_update_policy
    r += " accepted_item_type=#{accepted_item_type}" if accepted_item_type
    "#{r}>"
  end

  # @return [String]
  def to_s
    uid.to_s
  end

  # @deprecated OH3.4 this whole section is not needed in OH4+. Also see Thing#config_eql?
  if Gem::Version.new(Core::VERSION) < Gem::Version.new("4.0.0")
    # @!visibility private
    module ChannelComparable
      # @!visibility private
      # This is only needed in OH3 because it is implemented in OH4 core
      def ==(other)
        return true if equal?(other)
        return false unless other.is_a?(Channel)

        %i[class
           uid
           label
           description
           kind
           channel_type_uid
           configuration
           properties
           default_tags
           auto_update_policy
           accepted_item_type].all? do |attr|
          send(attr) == other.send(attr)
        end
      end
    end
    org.openhab.core.thing.binding.builder.ChannelBuilder.const_get(:ChannelImpl).prepend(ChannelComparable)
  end
end

#items ⇒ Array<Item> (readonly)

Returns all of the channel's linked items.

Returns:

  • (Array<Item>) —

    An array of things or an empty array



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# File 'lib/openhab/core/things/channel.rb', line 26

class Channel
  extend Forwardable

  delegate %i[item items thing] => :uid

  # @return [String]
  def inspect
    r = "#<OpenHAB::Core::Things::Channel #{uid}"
    r += " #{label.inspect}" if label
    r += " description=#{description.inspect}" if description
    r += " kind=#{kind.inspect}"
    r += " channel_type_uid=#{channel_type_uid.inspect}" if channel_type_uid
    r += " configuration=#{configuration.properties.to_h}" unless configuration.properties.empty?
    r += " properties=#{properties.to_h}" unless properties.empty?
    r += " default_tags=#{default_tags.to_a}" unless default_tags.empty?
    r += " auto_update_policy=#{auto_update_policy}" if auto_update_policy
    r += " accepted_item_type=#{accepted_item_type}" if accepted_item_type
    "#{r}>"
  end

  # @return [String]
  def to_s
    uid.to_s
  end

  # @deprecated OH3.4 this whole section is not needed in OH4+. Also see Thing#config_eql?
  if Gem::Version.new(Core::VERSION) < Gem::Version.new("4.0.0")
    # @!visibility private
    module ChannelComparable
      # @!visibility private
      # This is only needed in OH3 because it is implemented in OH4 core
      def ==(other)
        return true if equal?(other)
        return false unless other.is_a?(Channel)

        %i[class
           uid
           label
           description
           kind
           channel_type_uid
           configuration
           properties
           default_tags
           auto_update_policy
           accepted_item_type].all? do |attr|
          send(attr) == other.send(attr)
        end
      end
    end
    org.openhab.core.thing.binding.builder.ChannelBuilder.const_get(:ChannelImpl).prepend(ChannelComparable)
  end
end

#thing ⇒ Thing? (readonly)

Return the thing this channel is associated with.

Returns:



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# File 'lib/openhab/core/things/channel.rb', line 26

class Channel
  extend Forwardable

  delegate %i[item items thing] => :uid

  # @return [String]
  def inspect
    r = "#<OpenHAB::Core::Things::Channel #{uid}"
    r += " #{label.inspect}" if label
    r += " description=#{description.inspect}" if description
    r += " kind=#{kind.inspect}"
    r += " channel_type_uid=#{channel_type_uid.inspect}" if channel_type_uid
    r += " configuration=#{configuration.properties.to_h}" unless configuration.properties.empty?
    r += " properties=#{properties.to_h}" unless properties.empty?
    r += " default_tags=#{default_tags.to_a}" unless default_tags.empty?
    r += " auto_update_policy=#{auto_update_policy}" if auto_update_policy
    r += " accepted_item_type=#{accepted_item_type}" if accepted_item_type
    "#{r}>"
  end

  # @return [String]
  def to_s
    uid.to_s
  end

  # @deprecated OH3.4 this whole section is not needed in OH4+. Also see Thing#config_eql?
  if Gem::Version.new(Core::VERSION) < Gem::Version.new("4.0.0")
    # @!visibility private
    module ChannelComparable
      # @!visibility private
      # This is only needed in OH3 because it is implemented in OH4 core
      def ==(other)
        return true if equal?(other)
        return false unless other.is_a?(Channel)

        %i[class
           uid
           label
           description
           kind
           channel_type_uid
           configuration
           properties
           default_tags
           auto_update_policy
           accepted_item_type].all? do |attr|
          send(attr) == other.send(attr)
        end
      end
    end
    org.openhab.core.thing.binding.builder.ChannelBuilder.const_get(:ChannelImpl).prepend(ChannelComparable)
  end
end

#uid ⇒ ChannelUID (readonly)

Returns:



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# File 'lib/openhab/core/things/channel.rb', line 26

class Channel
  extend Forwardable

  delegate %i[item items thing] => :uid

  # @return [String]
  def inspect
    r = "#<OpenHAB::Core::Things::Channel #{uid}"
    r += " #{label.inspect}" if label
    r += " description=#{description.inspect}" if description
    r += " kind=#{kind.inspect}"
    r += " channel_type_uid=#{channel_type_uid.inspect}" if channel_type_uid
    r += " configuration=#{configuration.properties.to_h}" unless configuration.properties.empty?
    r += " properties=#{properties.to_h}" unless properties.empty?
    r += " default_tags=#{default_tags.to_a}" unless default_tags.empty?
    r += " auto_update_policy=#{auto_update_policy}" if auto_update_policy
    r += " accepted_item_type=#{accepted_item_type}" if accepted_item_type
    "#{r}>"
  end

  # @return [String]
  def to_s
    uid.to_s
  end

  # @deprecated OH3.4 this whole section is not needed in OH4+. Also see Thing#config_eql?
  if Gem::Version.new(Core::VERSION) < Gem::Version.new("4.0.0")
    # @!visibility private
    module ChannelComparable
      # @!visibility private
      # This is only needed in OH3 because it is implemented in OH4 core
      def ==(other)
        return true if equal?(other)
        return false unless other.is_a?(Channel)

        %i[class
           uid
           label
           description
           kind
           channel_type_uid
           configuration
           properties
           default_tags
           auto_update_policy
           accepted_item_type].all? do |attr|
          send(attr) == other.send(attr)
        end
      end
    end
    org.openhab.core.thing.binding.builder.ChannelBuilder.const_get(:ChannelImpl).prepend(ChannelComparable)
  end
end

Instance Method Details

#inspect ⇒ String

Returns:

  • (String) 


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# File 'lib/openhab/core/things/channel.rb', line 32

def inspect
  r = "#<OpenHAB::Core::Things::Channel #{uid}"
  r += " #{label.inspect}" if label
  r += " description=#{description.inspect}" if description
  r += " kind=#{kind.inspect}"
  r += " channel_type_uid=#{channel_type_uid.inspect}" if channel_type_uid
  r += " configuration=#{configuration.properties.to_h}" unless configuration.properties.empty?
  r += " properties=#{properties.to_h}" unless properties.empty?
  r += " default_tags=#{default_tags.to_a}" unless default_tags.empty?
  r += " auto_update_policy=#{auto_update_policy}" if auto_update_policy
  r += " accepted_item_type=#{accepted_item_type}" if accepted_item_type
  "#{r}>"
end

#to_s ⇒ String

Returns:

  • (String) 


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# File 'lib/openhab/core/things/channel.rb', line 47

def to_s
  uid.to_s
end