scala.sys.ShutdownHookThread

class ShutdownHookThread extends Thread

A minimal Thread wrapper to enhance shutdown hooks. It knows how to unregister itself.

• Source
  • ShutdownHookThread.scala - Blame
  • ShutdownHookThread.scala - History
• Version
  • 2.9
• Since
  • 2.9

Deprecated Value Members From java.lang.Thread

final def stop(arg0: java.lang.Throwable): Unit

• Definition Classes
  • Thread
• Annotations
  • @Deprecated @ deprecated
• Deprecated
  • (Since version) see corresponding Javadoc for more information.

(defined at java.lang.Thread)

Value Members From java.lang.Thread

def clone(): AnyRef

Create a copy of the receiver object.

The default implementation of the clone method is platform dependent.

• returns
  • a copy of the receiver object.
• Attributes
  • protected[java.lang]
• Definition Classes
  • Thread → AnyRef
• Annotations
  • @ throws (…)
• Note
  • not specified by SLS as a member of AnyRef

(defined at java.lang.Thread)

def getState(): State

• Definition Classes
  • Thread

(defined at java.lang.Thread)

def getUncaughtExceptionHandler(): UncaughtExceptionHandler

• Definition Classes
  • Thread

(defined at java.lang.Thread)

final def join(arg0: Long): Unit

• Definition Classes
  • Thread
• Annotations
  • @ throws (…)

(defined at java.lang.Thread)

final def join(arg0: Long, arg1: Int): Unit

• Definition Classes
  • Thread
• Annotations
  • @ throws (…)

(defined at java.lang.Thread)

def setContextClassLoader(arg0: ClassLoader): Unit

• Definition Classes
  • Thread

(defined at java.lang.Thread)

final def setDaemon(arg0: Boolean): Unit

• Definition Classes
  • Thread

(defined at java.lang.Thread)

final def setName(arg0: String): Unit

• Definition Classes
  • Thread

(defined at java.lang.Thread)

final def setPriority(arg0: Int): Unit

• Definition Classes
  • Thread

(defined at java.lang.Thread)

def setUncaughtExceptionHandler(arg0: UncaughtExceptionHandler): Unit

• Definition Classes
  • Thread (defined at java.lang.Thread)

Full Source:

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala
package sys

/** A minimal Thread wrapper to enhance shutdown hooks.  It knows
 *  how to unregister itself.
 *
 *  @author Paul Phillips
 *  @version 2.9
 *  @since   2.9
 */
class ShutdownHookThread private (name: String) extends Thread(name) {
  def remove() = runtime removeShutdownHook this
}

object ShutdownHookThread {
  private var hookNameCount: Int = 0
  private def hookName(): String = synchronized {
    hookNameCount += 1
    "shutdownHook" + hookNameCount
  }
  /** Creates, names, and registers a shutdown hook to run the
   *  given code.
   */
  def apply(body: => Unit): ShutdownHookThread = {
    val t = new ShutdownHookThread(hookName()) {
      override def run() = body
    }
    runtime addShutdownHook t
    t
  }
}