Class: OpenHAB::Core::Types::UnDefType

Inherits:

Object

Object
OpenHAB::Core::Types::UnDefType

show all

Includes:: State

Defined in:: lib/openhab/core/types/un_def_type.rb

Overview

There are situations when item states do not have any defined value. This might be because they have not been initialized yet (never received an state update so far) or because their state is ambiguous (e.g. a group item with members whose states do not match will be NULL).

Constant Summary collapse

NULL = Null State

UNDEF = Undef State

Instance Method Summary collapse

#null? ⇒ true, false
Check if self == NULL.
#undef? ⇒ true, false
Check if self == UNDEF.

Methods included from Type

#==, #eql?

Instance Method Details

#null? ⇒ `true`, `false`

Check if self == NULL

Returns:

(true, false)

# File 'lib/openhab/core/types/un_def_type.rb', line 23

#undef? ⇒ `true`, `false`

Check if self == UNDEF