InitLegacyPreferences


1   /*******************************************************************************
2    * Copyright (c) 2005, 2006 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    * 
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.core.internal.preferences.legacy;
12  
13  import org.eclipse.core.internal.preferences.exchange.ILegacyPreferences;
14  import org.eclipse.core.internal.runtime.InternalPlatform;
15  import org.eclipse.core.runtime.Platform;
16  import org.eclipse.core.runtime.Plugin;
17  
18  /**
19   * Provides initialization of the legacy preferences as described in
20   * the Plugin class.
21   */
22  public class InitLegacyPreferences implements ILegacyPreferences {
23      /**
24       * The method tries to initialize the preferences using the legacy Plugin method.
25       * 
26       * @param object - plugin to initialize
27       * @param name - ID of the plugin to be initialized
28       * 
29       * @see Plugin#initializeDefaultPluginPreferences
30       * 
31       * @since org.eclipse.core.runtime 3.2
32       * 
33       * @deprecated Marked deprecated to supress warnings. This class is added to support
34       * backward compatibility only and should not be used in any new code.
35       */
36      public Object   init(Object   object, String   name) {
37          Plugin plugin = null;
38          if (object instanceof Plugin)
39              plugin = (Plugin) object;
40          // No extension exists. Get the plug-in object and call #initializeDefaultPluginPreferences().
41          // We can only call this if the runtime compatibility layer is installed.
42          if (plugin == null && InternalPlatform.getDefault().getBundle(org.eclipse.core.internal.runtime.CompatibilityHelper.PI_RUNTIME_COMPATIBILITY) != null)
43              plugin = Platform.getPlugin(name);
44          if (plugin == null) {
45              if (InternalPlatform.DEBUG_PLUGIN_PREFERENCES)
46                  InternalPlatform.message("No plug-in object available to set plug-in default preference overrides for:" + name); //$NON-NLS-1$
47              return null;
48          }
49          if (InternalPlatform.DEBUG_PLUGIN_PREFERENCES)
50              InternalPlatform.message("Applying plug-in default preference overrides for plug-in: " + plugin.getDescriptor().getUniqueIdentifier()); //$NON-NLS-1$
51  
52          plugin.internalInitializeDefaultPluginPreferences();
53          return plugin;
54      }
55  
56  }
57
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