Examples of org.eclipse.jdt.internal.debug.core.EventDispatcher

Package org.eclipse.jdt.internal.debug.core

Examples of org.eclipse.jdt.internal.debug.core.EventDispatcher

org.eclipse.jdt.internal.debug.core.EventDispatcher
Dispatches events generated by an underlying VM. There is one event dispatcher per JDI debug target.
Event listeners register with a debug target to handle specific event requests. A debug target forwards event listeners and requests to its event dispatcher. As events are received from the underlying VM, those listeners that registered to handle the specific events are notified.

Events are processed in event sets. It is possible that one event can trigger more than one event request to be processed. In such cases all event requests triggered by that one event are processed, and each event listener votes on whether the thread in which the event occurred should be resumed. A thread is only resumed in if all event handlers agree that the thread should be resumed.

   *            the event to queue
   * @param set
   *            the event set the event is associated with
   */
  public void queueEvent(DebugEvent event, EventSet set) {
    EventDispatcher dispatcher = ((JDIDebugTarget) getDebugTarget())
        .getEventDispatcher();
    if (dispatcher != null) {
      dispatcher.queue(event, set);
    }
  }

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   * @param request
   *            the event request
   */
  public void addJDIEventListener(IJDIEventListener listener,
      EventRequest request) {
    EventDispatcher dispatcher = ((JDIDebugTarget) getDebugTarget())
        .getEventDispatcher();
    if (dispatcher != null) {
      dispatcher.addJDIEventListener(listener, request);
    }
  }

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   * @param request
   *            the event request
   */
  public void removeJDIEventListener(IJDIEventListener listener,
      EventRequest request) {
    EventDispatcher dispatcher = ((JDIDebugTarget) getDebugTarget())
        .getEventDispatcher();
    if (dispatcher != null) {
      dispatcher.removeJDIEventListener(listener, request);
    }
  }

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   * Initialize event requests and state from the underlying VM. This method
   * is synchronized to ensure that we do not start to process an events from
   * the target until our state is initialized.
   */
  protected synchronized void initialize() {
    setEventDispatcher(new EventDispatcher(this));
    setRequestTimeout(Platform.getPreferencesService().getInt(
        JDIDebugPlugin.getUniqueIdentifier(),
        JDIDebugModel.PREF_REQUEST_TIMEOUT,
        JDIDebugModel.DEF_REQUEST_TIMEOUT,
        null));
    initializeRequests();
    initializeState();
    initializeBreakpoints();
    getLaunch().addDebugTarget(this);
    DebugPlugin plugin = DebugPlugin.getDefault();
    plugin.addDebugEventListener(this);
    fireCreationEvent();
    // begin handling/dispatching events after the creation event is handled
    // by all listeners
    plugin.asyncExec(new Runnable() {
      public void run() {
        EventDispatcher dispatcher = getEventDispatcher();
        if (dispatcher != null) {
          Thread t = new Thread(
              dispatcher,
              JDIDebugModel.getPluginIdentifier()
                  + JDIDebugModelMessages.JDIDebugTarget_JDI_Event_Dispatcher);

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  /**
   * The JDIDebugPlugin is shutting down. Shutdown the event dispatcher and do
   * local cleanup.
   */
  public void shutdown() {
    EventDispatcher dispatcher = ((JDIDebugTarget) getDebugTarget())
        .getEventDispatcher();
    if (dispatcher != null) {
      dispatcher.shutdown();
    }
    try {
      if (supportsTerminate()) {
        terminate();
      } else if (supportsDisconnect()) {

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Related Classes of org.eclipse.jdt.internal.debug.core.EventDispatcher

com.sun.jdi.event.Event

com.sun.jdi.event.EventIterator

com.sun.jdi.event.EventQueue

com.sun.jdi.event.EventSet

com.sun.jdi.VirtualMachine

org.eclipse.core.runtime.jobs.Job

org.eclipse.debug.core.DebugPlugin

org.eclipse.jdt.internal.debug.core.model.JDIDebugElement

org.eclipse.jdt.internal.debug.core.model.JDIDebugTarget

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