Examples of org.eclipse.core.runtime.IConfigurationElement

org.eclipse.core.runtime.IConfigurationElement
A configuration element, with its attributes and children, directly reflects the content and structure of the extension section within the declaring plug-in's manifest (plugin.xml) file.
This interface also provides a way to create executable extension objects.

These registry objects are intended for relatively short-term use. Clients that deal with these objects must be aware that they may become invalid if the declaring plug-in is updated or uninstalled. If this happens, all methods except {@link #isValid()} will throw {@link InvalidRegistryObjectException}. For configuration element objects, the most common case is code in a plug-in dealing with extensions contributed to one of the extension points it declares. Code in a plug-in that has declared that it is not dynamic aware (or not declared anything) can safely ignore this issue, since the registry would not be modified while it is active. However, code in a plug-in that declares that it is dynamic aware must be careful when accessing the extension and configuration element objects because they become invalid if the contributing plug-in is removed. Similarly, tools that analyze or display the extension registry are vulnerable. Client code can pre-test for invalid objects by calling {@link #isValid()}, which never throws this exception. However, pre-tests are usually not sufficient because of the possibility of the extension or configuration element object becoming invalid as a result of a concurrent activity. At-risk clients must treat InvalidRegistryObjectException as if it were a checked exception. Also, such clients should probably register a listener with the extension registry so that they receive notification of any changes to the registry.
This interface can be used without OSGi running.
This interface is not intended to be implemented by clients.

      final IConfigurationElement[] configurationElements,
      final int configurationElementCount) {
    final List warningsToLog = new ArrayList(1);


    for (int i = 0; i < configurationElementCount; i++) {
      final IConfigurationElement configurationElement = configurationElements[i];


      // Read out the command identifier.
      final String commandId = readRequired(configurationElement,
          ATT_COMMAND_ID, warningsToLog,
          "Handler submissions need a command id"); //$NON-NLS-1$

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          .getNewWizardRegistry().findWizard(id);
            if (wizardDesc != null) {
                action = new NewWizardShortcutAction(workbenchWindow,
            wizardDesc);
        actions.put(id, action);
        IConfigurationElement element = (IConfigurationElement) Util
            .getAdapter(wizardDesc, IConfigurationElement.class);
        if (element != null) {
          workbenchWindow.getExtensionTracker().registerObject(
              element.getDeclaringExtension(), action,
              IExtensionTracker.REF_WEAK);
        }
            }
        }
        return action;

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        // keep track of whether -any- of the widgets are resizeable
        boolean resizeable = false;


        for (Iterator widgetIter = widgets.iterator(); widgetIter.hasNext();) {
          IWorkbenchWidget widget = (IWorkbenchWidget) widgetIter.next();
          IConfigurationElement widgetElement = trimEntry.getElement(widget);
          if (widget != null) {
            resizeable |= trimEntry.fillMajor(widgetElement);
            renderTrim(grpComposite, widget, swtSide);
          }
        }

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      addWarning(warningsToLog,
          "There can only be one visibility element", parentElement, //$NON-NLS-1$
          parentId);
    }


    final IConfigurationElement visibilityElement = visibilityElements[0];
    final ActionExpression visibilityActionExpression = new ActionExpression(
        visibilityElement);
    final LegacyActionExpressionWrapper wrapper = new LegacyActionExpressionWrapper(
        visibilityActionExpression, null);
    return wrapper;

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    // Sort the actionSets extension point.
    final IConfigurationElement[] actionSetsExtensionPoint = registry
        .getConfigurationElementsFor(EXTENSION_ACTION_SETS);
    for (int i = 0; i < actionSetsExtensionPoint.length; i++) {
      final IConfigurationElement element = actionSetsExtensionPoint[i];
      final String name = element.getName();
      if (TAG_ACTION_SET.equals(name)) {
        addElementToIndexedArray(element, indexedConfigurationElements,
            INDEX_ACTION_SETS, actionSetCount++);
      }
    }


    // Sort the editorActions extension point.
    final IConfigurationElement[] editorActionsExtensionPoint = registry
        .getConfigurationElementsFor(EXTENSION_EDITOR_ACTIONS);
    for (int i = 0; i < editorActionsExtensionPoint.length; i++) {
      final IConfigurationElement element = editorActionsExtensionPoint[i];
      final String name = element.getName();
      if (TAG_EDITOR_CONTRIBUTION.equals(name)) {
        addElementToIndexedArray(element, indexedConfigurationElements,
            INDEX_EDITOR_CONTRIBUTIONS, editorContributionCount++);
      }
    }


    // Sort the popupMenus extension point.
    final IConfigurationElement[] popupMenusExtensionPoint = registry
        .getConfigurationElementsFor(EXTENSION_POPUP_MENUS);
    for (int i = 0; i < popupMenusExtensionPoint.length; i++) {
      final IConfigurationElement element = popupMenusExtensionPoint[i];
      final String name = element.getName();
      if (TAG_OBJECT_CONTRIBUTION.equals(name)) {
        addElementToIndexedArray(element, indexedConfigurationElements,
            INDEX_OBJECT_CONTRIBUTIONS, objectContributionCount++);
      } else if (TAG_VIEWER_CONTRIBUTION.equals(name)) {
        addElementToIndexedArray(element, indexedConfigurationElements,
            INDEX_VIEWER_CONTRIBUTIONS, viewerContributionCount++);
      }
    }


    // Sort the viewActions extension point.
    final IConfigurationElement[] viewActionsExtensionPoint = registry
        .getConfigurationElementsFor(EXTENSION_VIEW_ACTIONS);
    for (int i = 0; i < viewActionsExtensionPoint.length; i++) {
      final IConfigurationElement element = viewActionsExtensionPoint[i];
      final String name = element.getName();
      if (TAG_VIEW_CONTRIBUTION.equals(name)) {
        addElementToIndexedArray(element, indexedConfigurationElements,
            INDEX_VIEW_CONTRIBUTIONS, viewContributionCount++);
      }
    }

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   */
  private final void readActions(final String primaryId,
      final IConfigurationElement[] elements, final List warningsToLog,
      final Expression visibleWhenExpression, final String viewId) {
    for (int i = 0; i < elements.length; i++) {
      final IConfigurationElement element = elements[i];


      /*
       * We might need the identifier to generate the command, so we'll
       * read it out now.
       */

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    // stupid navigate group


    final List warningsToLog = new ArrayList(1);


    for (int i = 0; i < configurationElementCount; i++) {
      final IConfigurationElement element = configurationElements[i];


      // Read the action set identifier.
      final String id = readRequired(element, ATT_ID, warningsToLog,
          "Action sets need an id"); //$NON-NLS-1$
      if (id == null) {

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      final IConfigurationElement[] configurationElements,
      final int configurationElementCount) {
    final List warningsToLog = new ArrayList(1);


    for (int i = 0; i < configurationElementCount; i++) {
      final IConfigurationElement element = configurationElements[i];


      // Read the editor contribution identifier.
      final String id = readRequired(element, ATT_ID, warningsToLog,
          "Editor contributions need an id"); //$NON-NLS-1$
      if (id == null) {

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      final IConfigurationElement[] configurationElements,
      final int configurationElementCount) {
    final List warningsToLog = new ArrayList(1);


    for (int i = 0; i < configurationElementCount; i++) {
      final IConfigurationElement element = configurationElements[i];


      // Read the object contribution identifier.
      final String id = readRequired(element, ATT_ID, warningsToLog,
          "Object contributions need an id"); //$NON-NLS-1$
      if (id == null) {

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      final IConfigurationElement[] configurationElements,
      final int configurationElementCount) {
    final List warningsToLog = new ArrayList(1);


    for (int i = 0; i < configurationElementCount; i++) {
      final IConfigurationElement element = configurationElements[i];


      // Read the view contribution identifier.
      final String id = readRequired(element, ATT_ID, warningsToLog,
          "View contributions need an id"); //$NON-NLS-1$
      if (id == null) {

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