sealed abstract class Headers extends AnyRef
Headers represent an immutable append-only collection
of Headers. To create a new Headers instance, you
can use Headers#apply or Headers#empty and add an
instance of Header using append
.
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- Headers.scala
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Abstract Value Members
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abstract
def
append[V](key: String, value: V)(implicit serializer: HeaderSerializer[V]): Headers
Creates a new Headers instance including a Header with the specified key and value.
-
abstract
def
append(header: Header): Headers
Creates a new Headers instance with the specified Header included.
-
abstract
def
asJava: KafkaHeaders
The Headers as an immutable Java Kafka
Headers
instance. -
abstract
def
concat(that: Headers): Headers
Appends the specified Headers after these headers.
-
abstract
def
exists(key: String): Boolean
Returns
true
if a header with the specified key exists; otherwisefalse
. -
abstract
def
isEmpty: Boolean
true
if no Headers are included; otherwisefalse
. -
abstract
def
toChain: Chain[Header]
The included Headers as a
Chain
. -
abstract
def
withKey(key: String): Option[Header]
Returns the first header with the specified key, wrapped in
Some
, orNone
if no such header exists.Returns the first header with the specified key, wrapped in
Some
, orNone
if no such header exists. The apply function is an alias.
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
apply(key: String): Option[Header]
Returns the first header with the specified key, wrapped in
Some
, orNone
if no such header exists.Returns the first header with the specified key, wrapped in
Some
, orNone
if no such header exists. Alias for withKey. -
final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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def
eq(arg0: AnyRef): Boolean
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def
finalize(): Unit
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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
nonEmpty: Boolean
true
if at least one Header is included; otherwisefalse
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final
def
notify(): Unit
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def
notifyAll(): Unit
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def
wait(arg0: Long): Unit
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