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

Inherits:

Object

• Object
• OpenHAB::Core::Types::UnDefType

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).

Instance Method Summary

• #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

Returns:

• (true, false)

# File 'lib/openhab/core/types/un_def_type.rb', line 27