vertx-lang-scala-docs_2.12 3.7.1 API < Back
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# Packages

-  package root
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    root
-  package io
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    root
-  package vertx
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    io
-  package scala
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    vertx
-  package core
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    scala
-  package shareddata
  Definition Classes
    core
- AsyncMap
- Counter
- LocalMap
- Lock
- SharedData

c

io.vertx.scala.core.shareddata

# SharedData 

###
Companion object SharedData

#### class SharedData extends AnyRef

Shared data allows you to share data safely between different parts of your application in a safe way.

Shared data provides:

- synchronous shared maps (local)
- asynchronous maps (local or cluster-wide)
- asynchronous locks (local or cluster-wide)
- asynchronous counters (local or cluster-wide)

WARNING: In clustered mode, asynchronous maps/locks/counters rely on distributed data structures provided by the cluster manager. Beware that the latency relative to asynchronous maps/locks/counters operations can be much higher in clustered than in local mode.

Please see the documentation for more information.

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### Instance Constructors

1.  new SharedData(_asJava: AnyRef)

### 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 asInstanceOf[T0]: T0
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5.  def asJava: AnyRef
6.  def clone(): AnyRef
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7.  final def eq(arg0: AnyRef): Boolean
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8.  def equals(arg0: Any): Boolean
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9.  def finalize(): Unit
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10.  def getAsyncMap[K, V](name: String, resultHandler: Handler[AsyncResult[AsyncMap[K, V]]])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[K], arg1: scala.reflect.api.JavaUniverse.TypeTag[V]): Unit

    Get the io.vertx.scala.core.shareddata.AsyncMap with the specified name.

    Get the io.vertx.scala.core.shareddata.AsyncMap with the specified name. When clustered, the map is accessible to all nodes in the cluster and data put into the map from any node is visible to to any other node.

    WARNING: In clustered mode, asynchronous shared maps rely on distributed data structures provided by the cluster manager. Beware that the latency relative to asynchronous shared maps operations can be much higher in clustered than in local mode. * @param name the name of the map

    resultHandler

      the map will be returned asynchronously in this handler

11.  def getAsyncMapFuture[K, V](name: String)(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[K], arg1: scala.reflect.api.JavaUniverse.TypeTag[V]): scala.concurrent.Future[AsyncMap[K, V]]

    Like getAsyncMap but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

12.  final def getClass(): Class[_]
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13.  def getClusterWideMap[K, V](name: String, resultHandler: Handler[AsyncResult[AsyncMap[K, V]]])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[K], arg1: scala.reflect.api.JavaUniverse.TypeTag[V]): Unit

    Get the cluster wide map with the specified name.

    Get the cluster wide map with the specified name. The map is accessible to all nodes in the cluster and data put into the map from any node is visible to to any other node. * @param name the name of the map

    resultHandler

      the map will be returned asynchronously in this handler

14.  def getClusterWideMapFuture[K, V](name: String)(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[K], arg1: scala.reflect.api.JavaUniverse.TypeTag[V]): scala.concurrent.Future[AsyncMap[K, V]]

    Like getClusterWideMap but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

15.  def getCounter(name: String, resultHandler: Handler[AsyncResult[Counter]]): Unit

    Get an asynchronous counter.

    Get an asynchronous counter. The counter will be passed to the handler. * @param name the name of the counter.

    resultHandler

      the handler

16.  def getCounterFuture(name: String): scala.concurrent.Future[Counter]

    Like getCounter but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

17.  def getLocalAsyncMap[K, V](name: String, resultHandler: Handler[AsyncResult[AsyncMap[K, V]]])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[K], arg1: scala.reflect.api.JavaUniverse.TypeTag[V]): Unit

    Get the io.vertx.scala.core.shareddata.AsyncMap with the specified name.

    Get the io.vertx.scala.core.shareddata.AsyncMap with the specified name.

    When clustered, the map is NOT accessible to all nodes in the cluster. Only the instance which created the map can put and retrieve data from this map. * @param name the name of the map

    resultHandler

      the map will be returned asynchronously in this handler

18.  def getLocalAsyncMapFuture[K, V](name: String)(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[K], arg1: scala.reflect.api.JavaUniverse.TypeTag[V]): scala.concurrent.Future[AsyncMap[K, V]]

    Like getLocalAsyncMap but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

19.  def getLocalCounter(name: String, resultHandler: Handler[AsyncResult[Counter]]): Unit

    Get an asynchronous local counter.

    Get an asynchronous local counter. The counter will be passed to the handler. * @param name the name of the counter.

    resultHandler

      the handler

20.  def getLocalCounterFuture(name: String): scala.concurrent.Future[Counter]

    Like getLocalCounter but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

21.  def getLocalLock(name: String, resultHandler: Handler[AsyncResult[Lock]]): Unit

    Get an asynchronous local lock with the specified name.

    Get an asynchronous local lock with the specified name. The lock will be passed to the handler when it is available.

    In general lock acquision is unordered, so that sequential attempts to acquire a lock, even from a single thread, can happen in non-sequential order. * @param name the name of the lock

    resultHandler

      the handler

22.  def getLocalLockFuture(name: String): scala.concurrent.Future[Lock]

    Like getLocalLock but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

23.  def getLocalLockWithTimeout(name: String, timeout: Long, resultHandler: Handler[AsyncResult[Lock]]): Unit

    Like io.vertx.scala.core.shareddata.SharedData#getLocalLock but specifying a timeout.

    Like io.vertx.scala.core.shareddata.SharedData#getLocalLock but specifying a timeout. If the lock is not obtained within the timeout a failure will be sent to the handler.

    In general lock acquision is unordered, so that sequential attempts to acquire a lock, even from a single thread, can happen in non-sequential order. * @param name the name of the lock

    timeout

      the timeout in ms

    resultHandler

      the handler

24.  def getLocalLockWithTimeoutFuture(name: String, timeout: Long): scala.concurrent.Future[Lock]

    Like getLocalLockWithTimeout but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

25.  def getLocalMap[K, V](name: String)(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[K], arg1: scala.reflect.api.JavaUniverse.TypeTag[V]): LocalMap[K, V]

    Return a `LocalMap` with the specific `name`.

    Return a `LocalMap` with the specific `name`. * @param name the name of the map

    returns

      the msp

26.  def getLock(name: String, resultHandler: Handler[AsyncResult[Lock]]): Unit

    Get an asynchronous lock with the specified name.

    Get an asynchronous lock with the specified name. The lock will be passed to the handler when it is available.

    In general lock acquision is unordered, so that sequential attempts to acquire a lock, even from a single thread, can happen in non-sequential order. * @param name the name of the lock

    resultHandler

      the handler

27.  def getLockFuture(name: String): scala.concurrent.Future[Lock]

    Like getLock but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

28.  def getLockWithTimeout(name: String, timeout: Long, resultHandler: Handler[AsyncResult[Lock]]): Unit

    Like io.vertx.scala.core.shareddata.SharedData#getLock but specifying a timeout.

    Like io.vertx.scala.core.shareddata.SharedData#getLock but specifying a timeout. If the lock is not obtained within the timeout a failure will be sent to the handler.

    In general lock acquision is unordered, so that sequential attempts to acquire a lock, even from a single thread, can happen in non-sequential order. * @param name the name of the lock

    timeout

      the timeout in ms

    resultHandler

      the handler

29.  def getLockWithTimeoutFuture(name: String, timeout: Long): scala.concurrent.Future[Lock]

    Like getLockWithTimeout but returns a scala.concurrent.Future instead of taking an AsyncResultHandler.

30.  def hashCode(): Int
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31.  final def isInstanceOf[T0]: Boolean
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33.  final def notify(): Unit
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34.  final def notifyAll(): Unit
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35.  final def synchronized[T0](arg0: ⇒ T0): T0
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36.  def toString(): String
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37.  final def wait(): Unit
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38.  final def wait(arg0: Long, arg1: Int): Unit
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39.  final def wait(arg0: Long): Unit
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