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## org.apache.commons.scxml.env
Class SimpleScheduler

    java.lang.Object
      org.apache.commons.scxml.env.SimpleScheduler

All Implemented Interfaces:
  EventDispatcher, Serializable

public class SimpleScheduler
extends Object
implements EventDispatcher, Serializable

EventDispatcher implementation that can schedule `delay`ed <send> events for the "scxml" `targettype` attribute value (which is also the default). This implementation uses J2SE `Timer`s.

No other `targettype`s are processed. Subclasses may support additional `targettype`s by overriding the `send(...)` and `cancel(...)` methods and delegating to their `super` counterparts for the "scxml" `targettype`.

See Also:
  Serialized Form

Constructor Summary
`SimpleScheduler(SCXMLExecutor executor)` Constructor.

Method Summary
`void` | `cancel(String sendId)` Cancel the specified send message.
`protected SCXMLExecutor` | `getExecutor()` Get the executor we're attached to.
`protected org.apache.commons.logging.Log` | `getLog()` Get the log instance.
`protected Map` | `getTimers()` Get the current timers.
`void` | `send(String sendId, String target, String targettype, String event, Map params, Object hints, long delay, List externalNodes)` Send this message to the target.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### SimpleScheduler

    public SimpleScheduler(SCXMLExecutor executor)

  Constructor.

Parameters:
  `executor` - The owning `SCXMLExecutor` instance.

Method Detail

### cancel

    public void cancel(String sendId)

  Description copied from interface: `EventDispatcher`
  Cancel the specified send message.

  Specified by:
    `cancel` in interface `EventDispatcher`
  Parameters:
    `sendId` - The ID of the send message to cancel
  See Also:
    `EventDispatcher.cancel(String)`

### send

    public void send(String sendId,
                     String target,
                     String targettype,
                     String event,
                     Map params,
                     Object hints,
                     long delay,
                     List externalNodes)

  Description copied from interface: `EventDispatcher`
  Send this message to the target.

  Specified by:
    `send` in interface `EventDispatcher`
  Parameters:
    `sendId` - The ID of the send message
    `target` - An expression returning the target location of the event
    `targettype` - The type of the Event I/O Processor that the event should be dispatched to
    `event` - The type of event being generated.
    `params` - A list of zero or more whitespace separated variable names to be included with the event.
    `hints` - The data containing information which may be used by the implementing platform to configure the event processor
    `delay` - The event is dispatched after the delay interval elapses
    `externalNodes` - The list of external nodes associated with the <send> element.
  See Also:
    `EventDispatcher.send(String,String,String,String,Map,Object,long,List)`

### getLog

    protected org.apache.commons.logging.Log getLog()

  Get the log instance.

  Returns:
    The current log instance

### getTimers

    protected Map getTimers()

  Get the current timers.

  Returns:
    The currently scheduled timers

### getExecutor

    protected SCXMLExecutor getExecutor()

  Get the executor we're attached to.

  Returns:
    The owning executor instance

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