com.twitter.finagle.memcached.migration

DarkRead

trait DarkRead extends Client

DarkRead client. requires backendClient; override Get and Gets to send dark read to backend pool; backend read results are not blocking or exposed.

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Abstract Value Members

  1. abstract def add(key: String, flags: Int, expiry: Time, value: Buf): Future[Boolean]

    Store a key but only if it doesn't already exist on the server.

    Store a key but only if it doesn't already exist on the server.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  2. abstract def append(key: String, flags: Int, expiry: Time, value: Buf): Future[Boolean]

    Append bytes to the end of an existing key.

    Append bytes to the end of an existing key. If the key doesn't exist, the operation has no effect.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  3. abstract val backendClient: Client

    Attributes
    protected
  4. abstract def cas(key: String, flags: Int, expiry: Time, value: Buf, casUnique: Buf): Future[Boolean]

    Perform a CAS operation on the key, only if the value has not changed since the value was last retrieved, and casUnique extracted from a gets command.

    Perform a CAS operation on the key, only if the value has not changed since the value was last retrieved, and casUnique extracted from a gets command. We treat the "cas unique" token opaquely, but in reality it is a string-encoded u64.

    returns

    true if replaced, false if not

    Definition Classes
    BaseClient
  5. abstract def decr(key: String, delta: Long): Future[Option[Long]]

    Decrement a key.

    Decrement a key. Interpret the value as an JLong if it is parsable. This operation has no effect if there is no value there already.

    Definition Classes
    BaseClient
  6. abstract def delete(key: String): Future[Boolean]

    Remove a key.

    Remove a key.

    returns

    true if deleted, false if not found

    Definition Classes
    BaseClient
  7. abstract def incr(key: String, delta: Long): Future[Option[Long]]

    Increment a key.

    Increment a key. Interpret the value as an Long if it is parsable. This operation has no effect if there is no value there already.

    Definition Classes
    BaseClient
  8. abstract def prepend(key: String, flags: Int, expiry: Time, value: Buf): Future[Boolean]

    Prepend bytes to the beginning of an existing key.

    Prepend bytes to the beginning of an existing key. If the key doesn't exist, the operation has no effect.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  9. abstract def replace(key: String, flags: Int, expiry: Time, value: Buf): Future[Boolean]

    Replace bytes on an existing key.

    Replace bytes on an existing key. If the key doesn't exist, the operation has no effect.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  10. abstract def set(key: String, flags: Int, expiry: Time, value: Buf): Future[Unit]

    Store a key.

    Store a key. Override an existing value.

    returns

    true

    Definition Classes
    BaseClient
  11. abstract def stats(args: Option[String]): Future[Seq[String]]

    Send a stats command with optional arguments to the server

    Send a stats command with optional arguments to the server

    returns

    a sequence of strings, each of which is a line of output

    Definition Classes
    BaseClient

Concrete Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. def adapt[T](bijection: Bijection[Buf, T]): BaseClient[T]

    Definition Classes
    Client
  7. def add(key: String, value: Buf): Future[Boolean]

    Store a key but only if it doesn't already exist on the server.

    Store a key but only if it doesn't already exist on the server.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  8. def append(key: String, value: Buf): Future[Boolean]

    Append a set of bytes to the end of an existing key.

    Append a set of bytes to the end of an existing key. If the key doesn't exist, the operation has no effect.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  9. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  10. def bufferToType(v: Buf): Buf

    Definition Classes
    ClientBaseClient
  11. def cas(key: String, value: Buf, casUnique: Buf): Future[Boolean]

    Perform a CAS operation on the key, only if the value has not changed since the value was last retrieved, and casUnique extracted from a gets command.

    Perform a CAS operation on the key, only if the value has not changed since the value was last retrieved, and casUnique extracted from a gets command. We treat the "cas unique" token opaquely, but in reality it is a string-encoded u64.

    returns

    true if replaced, false if not

    Definition Classes
    BaseClient
  12. def chooseGetResult(frontResult: Future[GetResult], backResult: Future[GetResult]): Future[GetResult]

    Attributes
    protected
  13. def chooseGetsResult(frontResult: Future[GetsResult], backResult: Future[GetsResult]): Future[GetsResult]

    Attributes
    protected
  14. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  15. def decr(key: String): Future[Option[Long]]

    Definition Classes
    BaseClient
  16. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  17. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  18. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  19. def get(keys: Iterable[String]): Future[Map[String, Buf]]

    Get a set of keys from the server.

    Get a set of keys from the server.

    returns

    a Map[String, T] of all of the keys that the server had.

    Definition Classes
    BaseClient
  20. def get(key: String): Future[Option[Buf]]

    Get a key from the server.

    Get a key from the server.

    Definition Classes
    BaseClient
  21. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  22. def getResult(keys: Iterable[String]): Future[GetResult]

    Get a set of keys from the server.

    Get a set of keys from the server. Returns a Future[GetResult] that encapsulates hits, misses and failures.

    Definition Classes
    DarkReadBaseClient
  23. def gets(keys: Iterable[String]): Future[Map[String, (Buf, Buf)]]

    Get a set of keys from the server, together with a "cas unique" token.

    Get a set of keys from the server, together with a "cas unique" token. The token is treated opaquely by the memcache client but is in reality a string-encoded u64.

    returns

    a Map[String, (T, Buf)] of all the keys the server had, together with their "cas unique" token

    Definition Classes
    BaseClient
  24. def gets(key: String): Future[Option[(Buf, Buf)]]

    Get a key from the server, with a "cas unique" token.

    Get a key from the server, with a "cas unique" token. The token is treated opaquely by the memcache client but is in reality a string-encoded u64.

    Definition Classes
    BaseClient
  25. def getsResult(keys: Iterable[String]): Future[GetsResult]

    Get a set of keys from the server.

    Get a set of keys from the server. Returns a Future[GetsResult] that encapsulates hits, misses and failures. This variant includes the casToken from memcached.

    Definition Classes
    DarkReadBaseClient
  26. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  27. def incr(key: String): Future[Option[Long]]

    Definition Classes
    BaseClient
  28. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  29. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  30. final def notify(): Unit

    Definition Classes
    AnyRef
  31. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  32. def prepend(key: String, value: Buf): Future[Boolean]

    Prepend a set of bytes to the beginning of an existing key.

    Prepend a set of bytes to the beginning of an existing key. If the key doesn't exist, the operation has no effect.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  33. def quit(): Future[Unit]

    Send a quit command to the server.

    Send a quit command to the server. Alternative to release, for protocol compatability.

    returns

    none

    Definition Classes
    BaseClient
  34. def release(): Unit

    release the underlying service(s)

    release the underlying service(s)

    Definition Classes
    DarkReadBaseClient
  35. def replace(key: String, value: Buf): Future[Boolean]

    Replace an item if it exists.

    Replace an item if it exists. If it doesn't exist, the operation has no effect.

    returns

    true if stored, false if not stored

    Definition Classes
    BaseClient
  36. def set(key: String, value: Buf): Future[Unit]

    Store a key.

    Store a key. Override an existing values.

    returns

    true

    Definition Classes
    BaseClient
  37. def stats(): Future[Seq[String]]

    Definition Classes
    BaseClient
  38. def stats(args: String): Future[Seq[String]]

    Definition Classes
    BaseClient
  39. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  40. def toString(): String

    Definition Classes
    AnyRef → Any
  41. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  42. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  43. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  44. def withBytes: BaseClient[Array[Byte]]

    Adaptor to use Array[Byte] as values

    Adaptor to use Array[Byte] as values

    Definition Classes
    Client
  45. def withStrings: BaseClient[String]

    Adaptor to use String as values

    Adaptor to use String as values

    Definition Classes
    Client

Inherited from Client

Inherited from BaseClient[Buf]

Inherited from AnyRef

Inherited from Any

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