Package org.eclipse.help.ui.internal

Class HelpUIPlugin

java.lang.Object
org.eclipse.core.runtime.Plugin
org.eclipse.ui.plugin.AbstractUIPlugin
org.eclipse.help.ui.internal.HelpUIPlugin
All Implemented Interfaces:
BundleActivator
public class HelpUIPlugin extends AbstractUIPlugin
This class is Help UI plugin.

  • Field Details

    • PLUGIN_ID

      public static final String PLUGIN_ID
      See Also:

    • DEBUG

      public static boolean DEBUG

    • DEBUG_INFOPOP

      public static boolean DEBUG_INFOPOP

  • Constructor Details

    • HelpUIPlugin

      public HelpUIPlugin()

  • Method Details

    • getDefault

      public static HelpUIPlugin getDefault()
      Provides access to singleton
      Returns:
      HelpUIPlugin

    • stop

      public void stop(BundleContext context) throws Exception
      Description copied from class: AbstractUIPlugin
      The AbstractUIPlugin implementation of this Plugin method saves this plug-in's preference and dialog stores and shuts down its image registry (if they are in use). Subclasses may extend this method, but must send super last. A try-finally statement should be used where necessary to ensure that super.stop() is always done. Stops this plug-in.

      This method should be re-implemented in subclasses that need to do something when the plug-in is shut down. Implementors should call the inherited method as late as possible to ensure that any system requirements can be met.

      Plug-in shutdown code should be robust. In particular, this method should always make an effort to shut down the plug-in. Furthermore, the code should not assume that the plug-in was started successfully.

      Note 1: If a plug-in has been automatically started, this method will be automatically invoked by the platform when the platform is shut down.

      Note 2: This method is intended to perform simple termination of the plug-in environment. The platform may terminate invocations that do not complete in a timely fashion.

      Note 3: The supplied bundle context represents the plug-in to the OSGi framework. For security reasons, it is strongly recommended that this object should not be divulged.

      Note 4: This method and the Plugin.start(BundleContext) may be called from separate threads, but the OSGi framework ensures that both methods will not be called simultaneously.

      Clients must never explicitly call this method.
      Specified by:
      stop in interface BundleActivator
      Overrides:
      stop in class AbstractUIPlugin
      Parameters:
      context - the bundle context for this plug-in
      Throws:
      Exception - if this method fails to shut down this plug-in

    • start

      public void start(BundleContext context) throws Exception
      Description copied from class: AbstractUIPlugin
      The AbstractUIPlugin implementation of this Plugin method refreshes the plug-in actions. Subclasses may extend this method, but must send super first. Starts up this plug-in.

      This method should be overridden in subclasses that need to do something when this plug-in is started. Implementors should call the inherited method at the first possible point to ensure that any system requirements can be met.

      If this method throws an exception, it is taken as an indication that plug-in initialization has failed; as a result, the plug-in will not be activated; moreover, the plug-in will be marked as disabled and ineligible for activation for the duration.

      Note 1: This method is automatically invoked by the platform the first time any code in the plug-in is executed.

      Note 2: This method is intended to perform simple initialization of the plug-in environment. The platform may terminate initializers that do not complete in a timely fashion.

      Note 3: The class loader typically has monitors acquired during invocation of this method. It is strongly recommended that this method avoid synchronized blocks or other thread locking mechanisms, as this would lead to deadlock vulnerability.

      Note 4: The supplied bundle context represents the plug-in to the OSGi framework. For security reasons, it is strongly recommended that this object should not be divulged.

      Note 5: This method and the Plugin.stop(BundleContext) may be called from separate threads, but the OSGi framework ensures that both methods will not be called simultaneously.

      Clients must never explicitly call this method.
      Specified by:
      start in interface BundleActivator
      Overrides:
      start in class AbstractUIPlugin
      Parameters:
      context - the bundle context for this plug-in
      Throws:
      Exception - if this plug-in did not start up properly