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String
, Integer
and Real
types. Non-primitve individuals include tokens, simple classes,
metaclasses, metametaclasses, etc. and omegaclasses.
The three primitive types for each KB are available through the
following methods in the interface KB
:
STRING_TYPE()
(returning String
in Telos)
INTEGER_TYPE()
(returning Integer
in Telos)
REAL_TYPE()
(returning Real
in Telos)
Individuals also include five builtins for each level of Telos instantiation:
M3CLASS()
(returning M3Class
in Telos)
M2CLASS()
(returning M2Class
in Telos)
METACLASS()
(returning M1Class
in Telos)
SIMPLE_CLASS()
(returning SimpleClass
in Telos)
TOKEN()
(returning Token
in Telos)
In this API omegaclasses are also individuals. They are
available through methods in KB
as well. See the
Omegaclass
interface for their descriptions.
Below is a generic Telos individual represented with
relationships to other individuals and attributes. These are
relationships are described in the unimplemented Java interface
Relations
. Below this diagram are specific diagrams
showing the semantics of various Telos individuals.
level()
method on them returns the
constant TOKEN_LEVEL
in the Levels
interface. Tokens are (Telos) instances of simple classes. They
declare attributes that take any Telos individual (at any level of
instantiation) or primtive literal as a target . They also have
no inheritance characteristics. This means no token
extends (subclasses) another token. So they cannot inherit
attributes. In this API we refer to "TOKEN
" as the
unique simple class builtin for each KB of which all tokens are
direct Telos instances (by default). It is available by invoking
the TOKEN()
method in the interface KB
.
Simple classes are (Telos) instances of metaclasses. Invoking
the level()
method on them returns the constant
SIMPLE_CLASS_LEVEL
in the Levels
interface. They also have Telos instances which are tokens. They
declare attributes taking any Telos individual (at any level of
Telos instantiation) or primitive literal as a target. They can
inherit them from other simple classes. TOKEN
is the
builtin simple class, of which all other simple classes are Telos
subclasses and all tokens are Telos
instances. SIMPLE_CLASS
is the unique builtin
metaclass for each KB, of which all simple classes are direct Telos
instances (by default). The latter is accessed by the method
SIMPLE_CLASS()
in the interface KB
.
Metaclasses are instantiated by simple classes. Invoking the
level()
method on them returns the constant
METACLASS_LEVEL
in the Levels
interface. They declare attributes taking any Telos individual (at
any level of Telos instantiation) or primitive literal as a target.
They are also instances of Metameatclasses which are represented by
Individuals
's with level()
equal to
M2CLASS_LEVEL
. SIMPLE_CLASS
is the
supreme builtin metaclass, from which all other metaclasses inherit
(Telos inheritance) and of which all simple classes are Telos
instances. METACLASS
is the supreme builtin M2class,
of which all metaclasses are direct Telos instances (by default).
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