text: package cucumber.eclipse.editor;
  
  import org.eclipse.jface.preference.IPreferenceStore;
  import org.eclipse.jface.resource.ImageDescriptor;
  import org.eclipse.ui.plugin.AbstractUIPlugin;
  import org.osgi.framework.Bundle;
  import org.osgi.framework.BundleContext;
  
  import cucumber.eclipse.editor.preferences.StepDefinitionsScanPropertyChangeListener;
  
  /**
   * The activator class controls the plug-in life cycle
   */
  public class Activator extends AbstractUIPlugin {
  
  	// The plug-in ID
  	public static final String PLUGIN_ID = "cucumber.eclipse.editor"; //$NON-NLS-1$
  
  	// The BundleA
  	private Bundle bundle = null;
  
  	// The shared instance
  	private static Activator plugin;
  
  	/**
  	 * The constructor
  	 */
  	public Activator() {
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * 
  	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.
  	 * BundleContext)
  	 */
  	public void start(BundleContext context) throws Exception {
  		super.start(context);
  		plugin = this;
  
  		// Instantiate Bundle
  		bundle = context.getBundle();
  		
  		this.setupPreferenceChangesListeners();
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * 
  	 * @see
  	 * org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
  	 */
  	public void stop(BundleContext context) throws Exception {
  		plugin = null;
  		super.stop(context);
  	}
  
  	/**
  	 * Returns the shared instance
  	 *
  	 * @return the shared instance
  	 */
  	public static Activator getDefault() {
  		return plugin;
  	}
  
  	@Override
  	public IPreferenceStore getPreferenceStore() {
  		return super.getPreferenceStore();
  
  	}
  
  	public static ImageDescriptor getImageDescriptor(String path) {
  		return imageDescriptorFromPlugin(PLUGIN_ID, path);
  	}
  
  	// return Bundle
  	public Bundle get_Bundle() {
  		return bundle;
  	}
  
  	private void setupPreferenceChangesListeners() {
  		Activator.getDefault().getPreferenceStore().addPropertyChangeListener(new StepDefinitionsScanPropertyChangeListener());
  	}
  	
  }
  