org.kie.api.executor

## Interface Executor

-     public interface Executor

  Core logic of executor is encapsulated by this interface. It allows to operate on request instances of the execution.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `cancelRequest(Long requestId)` Cancels active (queued, running or retrying) request
    `void` | `destroy()` Destroys executor
    `int` | `getInterval()`
    `int` | `getRetries()`
    `int` | `getThreadPoolSize()`
    `TimeUnit` | `getTimeunit()`
    `void` | `init()` Initialized executor
    `Long` | `scheduleRequest(String commandName, CommandContext ctx)` Schedules execution of given command as soon as possible.
    `Long` | `scheduleRequest(String commandName, Date date, CommandContext ctx)` Schedules execution of given command on defined time.
    `void` | `setInterval(int waitTime)` Sets interval at which executor threads are running.
    `void` | `setRetries(int defaultNroOfRetries)` Sets default number of retries that shall be attempted in case of an error.
    `void` | `setThreadPoolSize(int nroOfThreads)` Sets default executor thread pool size.
    `void` | `setTimeunit(TimeUnit timeunit)` Sets time unit for executor intervals
    `void` | `updateRequestData(Long requestId, Map<String,Object> data)` Updates request data by merging existing (if any) with given.

- - ### Method Detail

    - #### scheduleRequest

          Long scheduleRequest(String commandName,
                               CommandContext ctx)

      Schedules execution of given command as soon as possible.
      Parameters:
        `commandName` - - FQCN of the command
        `ctx` - - contextual data given by executor service
      Returns:
        unique identifier of the request

    - #### scheduleRequest

          Long scheduleRequest(String commandName,
                               Date date,
                               CommandContext ctx)

      Schedules execution of given command on defined time.
      Parameters:
        `commandName` - - FQCN of the command
        `date` - - date at which given command shall be executed
        `ctx` - - contextual data given by executor service
      Returns:
        unique identifier of the request

    - #### cancelRequest

          void cancelRequest(Long requestId)

      Cancels active (queued, running or retrying) request
      Parameters:
        `requestId` - - id of the request to cancel

    - #### getInterval

          int getInterval()

      Returns:
        configured interval at which executor threads are running

    - #### setInterval

          void setInterval(int waitTime)

      Sets interval at which executor threads are running. Should not be used after `init` method has been called.
      Parameters:
        `waitTime` -

    - #### getRetries

          int getRetries()

      Returns:
        configured default number of retries that shall be attempted in case of an error

    - #### setRetries

          void setRetries(int defaultNroOfRetries)

      Sets default number of retries that shall be attempted in case of an error. Should not be used after `init` method has been called.
      Parameters:
        `defaultNroOfRetries` -

    - #### getThreadPoolSize

          int getThreadPoolSize()

      Returns:
        configured executor thread pool size

    - #### setThreadPoolSize

          void setThreadPoolSize(int nroOfThreads)

      Sets default executor thread pool size. Should not be used after `init` method has been called.
      Parameters:
        `nroOfThreads` -

    - #### getTimeunit

          TimeUnit getTimeunit()

      Returns:
        time unit configured for executor intervals

    - #### setTimeunit

          void setTimeunit(TimeUnit timeunit)

      Sets time unit for executor intervals
      Parameters:
        `timeunit` -

    - #### init

          void init()

      Initialized executor

    - #### destroy

          void destroy()

      Destroys executor

    - #### updateRequestData

          void updateRequestData(Long requestId,
                                 Map<String,Object> data)

      Updates request data by merging existing (if any) with given. Only allowed for not completed requests (including those in error state).
      Parameters:
        `requestId` - unique id of the request to be updated
        `data` - data to be set on the job

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