Examples of org.eclipse.core.runtime.IExtensionPoint

org.eclipse.core.runtime.IExtensionPoint
An extension point declared in a plug-in. Except for the list of extensions plugged in to it, the information available for an extension point is obtained from the declaring plug-in's manifest (plugin.xml) file.
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 extension point objects, the most common case is code in a plug-in dealing with one of the extension points it declares. These extension point objects are guaranteed to be valid while the plug-in is active. Code in a plug-in that has declared that it is not dynamic aware (or not declared anything) can also 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 if it access the extension point object of a different plug-in, because it's at risk if that other 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 point 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.

        return runListeners;
    }


    protected List computeListeners() {
        IExtensionRegistry registry = Platform.getExtensionRegistry();
        IExtensionPoint extensionPoint = registry.getExtensionPoint(RUN_LISTENER_ID);
        IExtension[] extensions = extensionPoint.getExtensions();
        ArrayList results = new ArrayList();
        for (int i = 0; i < extensions.length; i++) {
            IConfigurationElement[] elements = extensions[i].getConfigurationElements();
            for (int j = 0; j < elements.length; j++) {
                try {

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     * @param id the unique id of the extension point
     * @return null if the ExtensionPoint is not registered
     */
    public ExtensionPoint getExtensionPoint(String id)
    {
        IExtensionPoint eclipseExPoint = RegistryFactory.getRegistry().getExtensionPoint(id);
        Bundle plugin = new Bundle(eclipseExPoint.getContributor().getName(),"","","",null);


        org.osgi.framework.Bundle bundle = Platform.getBundle(eclipseExPoint.getContributor().getName());
        try
        {
            ExtensionPoint exPoint = new ExtensionPoint(eclipseExPoint.getSimpleIdentifier(),eclipseExPoint.getLabel(),bundle.getResource(eclipseExPoint.getSchemaReference()),plugin);
            for( int e=0; e<eclipseExPoint.getExtensions().length; e++)
            {
                Bundle pluginEx = new Bundle(eclipseExPoint.getExtensions()[e].getContributor().getName(),"","","",null);
                Extension ex = new Extension(exPoint, pluginEx);
                configurationElement(ex,eclipseExPoint.getExtensions()[e].getConfigurationElements(),null);
                exPoint.addExtension(ex);
            }
            return exPoint;
        }
        catch (InvalidRegistryObjectException e)

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  private static ClasspathContainerInitializer computeClasspathContainerInitializer(String containerID) {
    Plugin jdtCorePlugin = JavaCore.getPlugin();
    if (jdtCorePlugin == null) return null;


    IExtensionPoint extension = Platform.getExtensionRegistry().getExtensionPoint(JavaCore.PLUGIN_ID, JavaModelManager.CPCONTAINER_INITIALIZER_EXTPOINT_ID);
    if (extension != null) {
      IExtension[] extensions =  extension.getExtensions();
      for(int i = 0; i < extensions.length; i++){
        IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
        for(int j = 0; j < configElements.length; j++){
          IConfigurationElement configurationElement = configElements[j];
          String initializerID = configurationElement.getAttribute("id"); //$NON-NLS-1$

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  public static ClasspathVariableInitializer getClasspathVariableInitializer(String variable){


    Plugin jdtCorePlugin = JavaCore.getPlugin();
    if (jdtCorePlugin == null) return null;


    IExtensionPoint extension = Platform.getExtensionRegistry().getExtensionPoint(JavaCore.PLUGIN_ID, JavaModelManager.CPVARIABLE_INITIALIZER_EXTPOINT_ID);
    if (extension != null) {
      IExtension[] extensions =  extension.getExtensions();
      for(int i = 0; i < extensions.length; i++){
        IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
        for(int j = 0; j < configElements.length; j++){
          IConfigurationElement configElement = configElements[j];
          try {

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    private void initEntryEditorExtensions()
    {
        entryEditorExtensions = new HashMap<String, EntryEditorExtension>();


        IExtensionRegistry registry = Platform.getExtensionRegistry();
        IExtensionPoint extensionPoint = registry.getExtensionPoint( BrowserUIConstants.ENTRY_EDITOR_EXTENSION_POINT );
        IConfigurationElement[] members = extensionPoint.getConfigurationElements();


        // For each extension:
        for ( int m = 0; m < members.length; m++ )
        {
            EntryEditorExtension bean = new EntryEditorExtension();

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    }
    return null;
  }


  private static void readBrandingDefinitions() {
    IExtensionPoint brandingExtPoint = Platform.getExtensionRegistry().getExtensionPoint(POINT_ID);
    if (brandingExtPoint != null) {
      brandingServerTypeIds.clear();
      for (IExtension extension : brandingExtPoint.getExtensions()) {
        for (IConfigurationElement config : extension.getConfigurationElements()) {
          String serverId = config.getAttribute(ATTR_SERVER_TYPE_ID);
          String name = config.getAttribute(ATTR_NAME);
          if (serverId != null && serverId.trim().length() > 0 && name != null && name.trim().length() > 0) {
            IConfigurationElement[] urls = config.getChildren(ELEM_DEFAULT_URL);

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    return false;
  }


  private static Map<Priority, List<ApplicationProvider>> load() {
    Map<Priority, List<ApplicationProvider>> providerMap = new HashMap<Priority, List<ApplicationProvider>>();
    IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(EXTENSION_POINT);


    if (extensionPoint == null) {
      CloudFoundryPlugin.logError("Failed to load application type providers from: " + EXTENSION_POINT); //$NON-NLS-1$
    }
    else {
      for (IExtension extension : extensionPoint.getExtensions()) {
        for (IConfigurationElement config : extension.getConfigurationElements()) {


          if (APPLICATION_DELEGATE_EXT_ELEMENT.equals(config.getName())) {
            ApplicationProvider provider = new ApplicationProvider(config, EXTENSION_POINT);
            Priority priority = provider.getPriority();

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  private void load() {


    isLoaded = true;


    IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(EXTENSION_POINT);


    if (extensionPoint == null) {
      CloudFoundryPlugin.logError("Failed to load Cloud Foundry service icon extension providers from: " //$NON-NLS-1$
          + EXTENSION_POINT);
    }
    else {


      for (IExtension extension : extensionPoint.getExtensions()) {
        for (IConfigurationElement config : extension.getConfigurationElements()) {


          if (ELEMENT.equals(config.getName())) {
            try {
              ICloudFoundryServiceWizardIconProvider provider = (ICloudFoundryServiceWizardIconProvider) config

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    private static final String EXTENSION_ID_APP_STATE_TRACKER = "appStateTracker"; //$NON-NLS-1$


    public static CloudFoundryCallback readExtension() {
      IExtensionRegistry registry = Platform.getExtensionRegistry();
      IExtensionPoint extensionPoint = registry.getExtensionPoint(EXTENSION_ID_CALLBACK);
      IExtension[] extensions = extensionPoint.getExtensions();
      for (IExtension extension : extensions) {
        IConfigurationElement[] elements = extension.getConfigurationElements();
        for (IConfigurationElement element : elements) {
          if (element.getName().compareTo(ELEMENT_CALLBACK) == 0) {
            return readCallbackExtension(element);

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    return getWizardDelegate(javaWebProvider);
  }


  private static void load() {
    wizardProviders = new HashMap<String, ApplicationWizardProvider>();
    IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(EXTENSION_POINT);


    if (extensionPoint == null) {
      CloudFoundryPlugin.logError("Failed to load Cloud Foundry application wizard providers from: " //$NON-NLS-1$
          + EXTENSION_POINT);
    }
    else {
      for (IExtension extension : extensionPoint.getExtensions()) {
        for (IConfigurationElement config : extension.getConfigurationElements()) {


          if (APPLICATION_DELEGATE_EXT_ELEMENT.equals(config.getName())) {
            ApplicationWizardProvider wizardProvider = new ApplicationWizardProvider(config,
                EXTENSION_POINT);

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