Examples of org.eclipse.core.resources.WorkspaceJob

org.eclipse.core.resources.WorkspaceJob
A job that makes an atomic modification to the workspace. Clients must implement the abstract method runInWorkspace instead of the usual Job.run method.
After running a method that modifies resources in the workspace, registered listeners receive after-the-fact notification of what just transpired, in the form of a resource change event. This method allows clients to call a number of methods that modify resources and only have resource change event notifications reported at the end of the entire batch.

A WorkspaceJob is the asynchronous equivalent of IWorkspaceRunnable

Note that the workspace is not locked against other threads during the execution of a workspace job. Other threads can be modifying the workspace concurrently with a workspace job. To obtain exclusive access to a portion of the workspace, set the scheduling rule on the job to be a resource scheduling rule. The interface IResourceRuleFactory is used to create a scheduling rule for a particular workspace modification operation.
@see IWorkspaceRunnable @see org.eclipse.core.resources.IResourceRuleFactory @see IWorkspace#run(IWorkspaceRunnable,ISchedulingRule,int,IProgressMonitor) @since 3.0

    } catch (InterruptedException e) {
      return new Status(IStatus.ERROR, OverlayPluginActivator.PLUGIN_ID, NLS.bind(Messages.UnpackArchiveJob_Unpacking_Interrupted, archive.getName()) , e);
    }
    
    //will run in scheduling rule of parent of unpackfolder, so should be run in a different job
    new WorkspaceJob(NLS.bind(Messages.UnpackArchiveJob_Refreshing, unpackFolder.getLocation().toString())) {


      @Override
      public IStatus runInWorkspace(final IProgressMonitor monitor) throws CoreException
      {
        if (!monitor.isCanceled()) {

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    if(facades.isEmpty())
      return;
    
    final IProjectConfigurationManager configurationManager = MavenPlugin.getProjectConfigurationManager();


    WorkspaceJob job = new WorkspaceJob(Messages.MavenWtpPreferencePage_Updating_Maven_Projects_Job) {
  
      @Override
  public IStatus runInWorkspace(IProgressMonitor monitor) {
        try {
          SubMonitor progress = SubMonitor.convert(monitor, Messages.MavenWtpPreferencePage_Updating_Maven_Projects_Monitor, 100);
          SubMonitor subProgress = SubMonitor.convert(progress.newChild(5), facades.size() * 100);
          //projectManager.sortProjects(facades, progress.newChild(5));
          for(IMavenProjectFacade facade : facades) {
            if(progress.isCanceled()) {
              throw new OperationCanceledException();
            }
            IProject project = facade.getProject();
            subProgress.subTask(NLS.bind(Messages.MavenWtpPreferencePage_Updating_Configuration_For_Project, project.getName()));


            configurationManager.updateProjectConfiguration(project, subProgress);
          }


        } catch(CoreException ex) {
          return ex.getStatus();
        }
        return Status.OK_STATUS;
      }
    };
    job.setRule(configurationManager.getRule());
    job.schedule();
  }

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  private void updateProjectConfiguration(IProject project) {
    // TODO: remove this reflection if we ever set a minimum requirement of M2E 1.1
    try {
      Class<?> jobClass;
      Constructor<?> constr;
      WorkspaceJob job = null;
      try {
        // M2E 1.1 and greater
        jobClass = Class.forName("org.eclipse.m2e.core.ui.internal.UpdateMavenProjectJob");
        constr = jobClass.getConstructor(IProject[].class);
        job = (WorkspaceJob) constr.newInstance((Object) new IProject[] { project });
      } catch (ClassNotFoundException e) {
        // M2E 1.0
        jobClass = Class.forName("org.eclipse.m2e.core.ui.internal.UpdateConfigurationJob");
        constr = jobClass.getConstructor(IProject[].class, boolean.class, boolean.class);
        job = (WorkspaceJob) constr.newInstance(
            new IProject[] { project }, MavenPlugin.getMavenConfiguration().isOffline(), false);
      }
      if (job != null) {
        job.schedule();
      }
    }
    catch (Throwable e) {
      RooCoreActivator.log(new Status(IStatus.ERROR, RooUiActivator.PLUGIN_ID,
          "Unable to update Maven project configuration", e));

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