com.hazelcast.core

## Interface IExecutorService

- All Superinterfaces:
    DistributedObject, Executor, ExecutorService
  All Known Implementing Classes:
    ClientExecutorServiceProxy

      public interface IExecutorService
      extends ExecutorService, DistributedObject

  Distributed implementation of `ExecutorService`. IExecutorService provides additional methods like executing tasks on a specific member, on a member who is owner of a specific key, executing a tasks on multiple members and listening execution result using a callback. Supports Quorum `QuorumConfig` since 3.10 in cluster versions 3.10 and higher.
  See Also:
    `ExecutorService`, `ExecutionCallback`, `MultiExecutionCallback`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `execute(Runnable command, MemberSelector memberSelector)` Executes a task on a randomly selected member.
    `void` | `executeOnAllMembers(Runnable command)` Executes a task on all of the known cluster members.
    `void` | `executeOnKeyOwner(Runnable command, Object key)` Executes a task on the owner of the specified key.
    `void` | `executeOnMember(Runnable command, Member member)` Executes a task on the specified member.
    `void` | `executeOnMembers(Runnable command, Collection<Member> members)` Executes a task on each of the specified members.
    `void` | `executeOnMembers(Runnable command, MemberSelector memberSelector)` Executes a task on each of the selected members.
    `LocalExecutorStats` | `getLocalExecutorStats()` Returns local statistics related to this executor service.
    `<T> void` | `submit(Callable<T> task, ExecutionCallback<T> callback)` Submits a task to a random member.
    `<T> Future<T>` | `submit(Callable<T> task, MemberSelector memberSelector)` Submits a task to a randomly selected member and returns a Future representing that task.
    `<T> void` | `submit(Callable<T> task, MemberSelector memberSelector, ExecutionCallback<T> callback)` Submits task to a randomly selected member.
    `<T> void` | `submit(Runnable task, ExecutionCallback<T> callback)` Submits a task to a random member.
    `<T> void` | `submit(Runnable task, MemberSelector memberSelector, ExecutionCallback<T> callback)` Submits a task to randomly selected members.
    `<T> Map<Member,Future<T>>` | `submitToAllMembers(Callable<T> task)` Submits task to all cluster members and returns a map of Member-Future pairs representing pending completion of the task on each member.
    `<T> void` | `submitToAllMembers(Callable<T> task, MultiExecutionCallback callback)` Submits task to all the cluster members.
    `void` | `submitToAllMembers(Runnable task, MultiExecutionCallback callback)` Submits task to all the cluster members.
    `<T> Future<T>` | `submitToKeyOwner(Callable<T> task, Object key)` Submits a task to the owner of the specified key and returns a Future representing that task.
    `<T> void` | `submitToKeyOwner(Callable<T> task, Object key, ExecutionCallback<T> callback)` Submits task to the owner of the specified key.
    `<T> void` | `submitToKeyOwner(Runnable task, Object key, ExecutionCallback<T> callback)` Submits a task to the owner of the specified key.
    `<T> Future<T>` | `submitToMember(Callable<T> task, Member member)` Submits a task to the specified member and returns a Future representing that task.
    `<T> void` | `submitToMember(Callable<T> task, Member member, ExecutionCallback<T> callback)` Submits a task to the specified member.
    `<T> void` | `submitToMember(Runnable task, Member member, ExecutionCallback<T> callback)` Submits a task to the specified member.
    `<T> Map<Member,Future<T>>` | `submitToMembers(Callable<T> task, Collection<Member> members)` Submits a task to given members and returns map of Member-Future pairs representing pending completion of the task on each member
    `<T> void` | `submitToMembers(Callable<T> task, Collection<Member> members, MultiExecutionCallback callback)` Submits a task to the specified members.
    `<T> Map<Member,Future<T>>` | `submitToMembers(Callable<T> task, MemberSelector memberSelector)` Submits a task to selected members and returns a map of Member-Future pairs representing pending completion of the task on each member.
    `<T> void` | `submitToMembers(Callable<T> task, MemberSelector memberSelector, MultiExecutionCallback callback)` Submits task to the selected members.
    `void` | `submitToMembers(Runnable task, Collection<Member> members, MultiExecutionCallback callback)` Submits a task to the specified members.
    `void` | `submitToMembers(Runnable task, MemberSelector memberSelector, MultiExecutionCallback callback)` Submits task to the selected members.

    - ### Methods inherited from interface java.util.concurrent.ExecutorService

      `awaitTermination, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isTerminated, shutdown, shutdownNow, submit, submit, submit`

    - ### Methods inherited from interface java.util.concurrent.Executor

      `execute`

    - ### Methods inherited from interface com.hazelcast.core.DistributedObject

      `destroy, getName, getPartitionKey, getServiceName`

- - ### Method Detail

    - #### execute

          void execute(Runnable command,
                       MemberSelector memberSelector)

      Executes a task on a randomly selected member.
      Parameters:
        `command` - the task that is executed on a randomly selected member
        `memberSelector` - memberSelector
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### executeOnKeyOwner

          void executeOnKeyOwner(Runnable command,
                                 Object key)

      Executes a task on the owner of the specified key.
      Parameters:
        `command` - a task executed on the owner of the specified key
        `key` - the specified key

    - #### executeOnMember

          void executeOnMember(Runnable command,
                               Member member)

      Executes a task on the specified member.
      Parameters:
        `command` - the task executed on the specified member
        `member` - the specified member

    - #### executeOnMembers

          void executeOnMembers(Runnable command,
                                Collection<Member> members)

      Executes a task on each of the specified members.
      Parameters:
        `command` - the task executed on the specified members
        `members` - the specified members

    - #### executeOnMembers

          void executeOnMembers(Runnable command,
                                MemberSelector memberSelector)

      Executes a task on each of the selected members.
      Parameters:
        `command` - a task executed on each of the selected members
        `memberSelector` - memberSelector
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### executeOnAllMembers

          void executeOnAllMembers(Runnable command)

      Executes a task on all of the known cluster members.
      Parameters:
        `command` - a task executed on all of the known cluster members

    - #### submit

          <T> Future<T> submit(Callable<T> task,
                               MemberSelector memberSelector)

      Submits a task to a randomly selected member and returns a Future representing that task.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - task submitted to a randomly selected member
        `memberSelector` - memberSelector
      Returns:
        a Future representing pending completion of the task
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### submitToKeyOwner

          <T> Future<T> submitToKeyOwner(Callable<T> task,
                                         Object key)

      Submits a task to the owner of the specified key and returns a Future representing that task.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - task submitted to the owner of the specified key
        `key` - the specified key
      Returns:
        a Future representing pending completion of the task

    - #### submitToMember

          <T> Future<T> submitToMember(Callable<T> task,
                                       Member member)

      Submits a task to the specified member and returns a Future representing that task.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to the specified member
        `member` - the specified member
      Returns:
        a Future representing pending completion of the task

    - #### submitToMembers

          <T> Map<Member,Future<T>> submitToMembers(Callable<T> task,
                                                    Collection<Member> members)

      Submits a task to given members and returns map of Member-Future pairs representing pending completion of the task on each member
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to given members
        `members` - the given members
      Returns:
        map of Member-Future pairs representing pending completion of the task on each member

    - #### submitToMembers

          <T> Map<Member,Future<T>> submitToMembers(Callable<T> task,
                                                    MemberSelector memberSelector)

      Submits a task to selected members and returns a map of Member-Future pairs representing pending completion of the task on each member.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to selected members
        `memberSelector` - memberSelector
      Returns:
        map of Member-Future pairs representing pending completion of the task on each member
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### submitToAllMembers

          <T> Map<Member,Future<T>> submitToAllMembers(Callable<T> task)

      Submits task to all cluster members and returns a map of Member-Future pairs representing pending completion of the task on each member.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to all cluster members
      Returns:
        map of Member-Future pairs representing pending completion of the task on each member

    - #### submit

          <T> void submit(Runnable task,
                          ExecutionCallback<T> callback)

      Submits a task to a random member. Caller will be notified of the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the response type of callback
      Parameters:
        `task` - a task submitted to a random member
        `callback` - callback

    - #### submit

          <T> void submit(Runnable task,
                          MemberSelector memberSelector,
                          ExecutionCallback<T> callback)

      Submits a task to randomly selected members. Caller will be notified for the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the response type of callback
      Parameters:
        `task` - the task submitted to randomly selected members
        `memberSelector` - memberSelector
        `callback` - callback
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### submitToKeyOwner

          <T> void submitToKeyOwner(Runnable task,
                                    Object key,
                                    ExecutionCallback<T> callback)

      Submits a task to the owner of the specified key. Caller will be notified for the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the response type of callback
      Parameters:
        `task` - task submitted to the owner of the specified key
        `key` - the specified key
        `callback` - callback

    - #### submitToMember

          <T> void submitToMember(Runnable task,
                                  Member member,
                                  ExecutionCallback<T> callback)

      Submits a task to the specified member. Caller will be notified for the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the response type of callback
      Parameters:
        `task` - the task submitted to the specified member
        `member` - the specified member
        `callback` - callback

    - #### submitToMembers

          void submitToMembers(Runnable task,
                               Collection<Member> members,
                               MultiExecutionCallback callback)

      Submits a task to the specified members. Caller will be notified for the result of the each task by `MultiExecutionCallback.onResponse(Member, Object)`, and when all tasks are completed, `MultiExecutionCallback.onComplete(java.util.Map)` will be called.
      Parameters:
        `task` - the task submitted to the specified members
        `members` - the specified members
        `callback` - callback

    - #### submitToMembers

          void submitToMembers(Runnable task,
                               MemberSelector memberSelector,
                               MultiExecutionCallback callback)

      Submits task to the selected members. Caller will be notified for the result of the each task by `MultiExecutionCallback.onResponse(Member, Object)`, and when all tasks are completed, `MultiExecutionCallback.onComplete(java.util.Map)` will be called.
      Parameters:
        `task` - the task submitted to the selected members
        `memberSelector` - memberSelector
        `callback` - callback
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### submitToAllMembers

          void submitToAllMembers(Runnable task,
                                  MultiExecutionCallback callback)

      Submits task to all the cluster members. Caller will be notified for the result of each task by `MultiExecutionCallback.onResponse(Member, Object)`, and when all tasks are completed, `MultiExecutionCallback.onComplete(java.util.Map)` will be called.
      Parameters:
        `task` - the task submitted to all the cluster members
        `callback` - callback

    - #### submit

          <T> void submit(Callable<T> task,
                          ExecutionCallback<T> callback)

      Submits a task to a random member. Caller will be notified for the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to a random member
        `callback` - callback

    - #### submit

          <T> void submit(Callable<T> task,
                          MemberSelector memberSelector,
                          ExecutionCallback<T> callback)

      Submits task to a randomly selected member. Caller will be notified for the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to a randomly selected member
        `memberSelector` - memberSelector
        `callback` - callback
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### submitToKeyOwner

          <T> void submitToKeyOwner(Callable<T> task,
                                    Object key,
                                    ExecutionCallback<T> callback)

      Submits task to the owner of the specified key. Caller will be notified for the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to the owner of the specified key
        `key` - the specified key
        `callback` - callback

    - #### submitToMember

          <T> void submitToMember(Callable<T> task,
                                  Member member,
                                  ExecutionCallback<T> callback)

      Submits a task to the specified member. Caller will be notified for the result of the task by `ExecutionCallback.onResponse(Object)` or `ExecutionCallback.onFailure(Throwable)`.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to the specified member
        `member` - the specified member
        `callback` - callback

    - #### submitToMembers

          <T> void submitToMembers(Callable<T> task,
                                   Collection<Member> members,
                                   MultiExecutionCallback callback)

      Submits a task to the specified members. Caller will be notified for the result of each task by `MultiExecutionCallback.onResponse(Member, Object)`, and when all tasks are completed, `MultiExecutionCallback.onComplete(java.util.Map)` will be called.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to the specified members
        `members` - the specified members
        `callback` - callback

    - #### submitToMembers

          <T> void submitToMembers(Callable<T> task,
                                   MemberSelector memberSelector,
                                   MultiExecutionCallback callback)

      Submits task to the selected members. Caller will be notified for the result of each task by `MultiExecutionCallback.onResponse(Member, Object)`, and when all tasks are completed, `MultiExecutionCallback.onComplete(java.util.Map)` will be called.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to the selected members
        `memberSelector` - memberSelector
        `callback` - callback
      Throws:
        `RejectedExecutionException` - if no member is selected

    - #### submitToAllMembers

          <T> void submitToAllMembers(Callable<T> task,
                                      MultiExecutionCallback callback)

      Submits task to all the cluster members. Caller will be notified for the result of the each task by `MultiExecutionCallback.onResponse(Member, Object)`, and when all tasks are completed, `MultiExecutionCallback.onComplete(java.util.Map)` will be called.
      Type Parameters:
        `T` - the result type of callable
      Parameters:
        `task` - the task submitted to all the cluster members
        `callback` - callback

    - #### getLocalExecutorStats

          LocalExecutorStats getLocalExecutorStats()

      Returns local statistics related to this executor service.
      Returns:
        local statistics related to this executor service

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