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.

Source
Headers.scala
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Abstract Value Members

  1. 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.

  2. abstract def append(header: Header): Headers

    Creates a new Headers instance with the specified Header included.

  3. abstract def asJava: KafkaHeaders

    The Headers as an immutable Java Kafka Headers instance.

  4. abstract def concat(that: Headers): Headers

    Appends the specified Headers after these headers.

  5. abstract def exists(key: String): Boolean

    Returns true if a header with the specified key exists; otherwise false.

  6. abstract def isEmpty: Boolean

    true if no Headers are included; otherwise false.

  7. abstract def toChain: Chain[Header]

    The included Headers as a Chain.

  8. abstract def withKey(key: String): Option[Header]

    Returns the first header with the specified key, wrapped in Some, or None if no such header exists.

    Returns the first header with the specified key, wrapped in Some, or None if no such header exists. The apply function is an alias.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def apply(key: String): Option[Header]

    Returns the first header with the specified key, wrapped in Some, or None if no such header exists.

    Returns the first header with the specified key, wrapped in Some, or None if no such header exists. Alias for withKey.

  5. final def asInstanceOf[T0]: T0
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  6. def clone(): AnyRef
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  9. def finalize(): Unit
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  10. final def getClass(): Class[_ <: AnyRef]
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  11. def hashCode(): Int
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  12. final def isInstanceOf[T0]: Boolean
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  13. final def ne(arg0: AnyRef): Boolean
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  14. final def nonEmpty: Boolean

    true if at least one Header is included; otherwise false.

  15. final def notify(): Unit
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  16. final def notifyAll(): Unit
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  21. final def wait(arg0: Long): Unit
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