sealed trait AttributeKey[T] extends AnyRef
A key in an AttributeMap that constrains its associated value to be of type T
.
The key is uniquely defined by its label
and type T
, represented at runtime by manifest
.
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Abstract Value Members
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abstract
def
description: Option[String]
An optional, brief description of the key.
-
abstract
def
extend: Seq[AttributeKey[_]]
In environments that support delegation, looking up this key when it has no associated value will delegate to the values associated with these keys.
In environments that support delegation, looking up this key when it has no associated value will delegate to the values associated with these keys. The delegation proceeds in order the keys are returned here.
-
abstract
def
isLocal: Boolean
Specifies whether this key is a local, anonymous key (
true
) or not (false
).Specifies whether this key is a local, anonymous key (
true
) or not (false
). This is typically only used for programmatic, intermediate keys that should not be referenced outside of a specific scope. -
abstract
def
label: String
The label is the identifier for the key and is camelCase by convention.
-
abstract
def
manifest: Manifest[T]
The runtime evidence for
T
. - abstract def optJsonWriter: OptJsonWriter[T]
-
abstract
def
rank: Int
Identifies the relative importance of a key among other keys.
Concrete Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
finalize(): Unit
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final
def
getClass(): Class[_]
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def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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