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1   /*
2    * Copyright 2004-2008 the Seasar Foundation and the Others.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  
17  package org.seasar.eclipse.common.util;
18  
19  import org.eclipse.core.resources.IProject;
20  import org.eclipse.core.resources.ProjectScope;
21  import org.eclipse.core.runtime.preferences.IScopeContext;
22  import org.eclipse.core.runtime.preferences.InstanceScope;
23  import org.eclipse.ui.preferences.ScopedPreferenceStore;
24  
25  /**
26   * @author taichi
27   * 
28   */
29  public class PreferenceStoreUtil {
30  	public static ScopedPreferenceStore getCascadingStore(String qualifier,
31  			IProject project) {
32  		IScopeContext[] ctxs = null;
33  		if (project != null) {
34  			ctxs = new IScopeContext[2];
35  			ctxs[0] = new ProjectScope(project);
36  			ctxs[1] = new InstanceScope();
37  		} else {
38  			ctxs = new IScopeContext[1];
39  			ctxs[0] = new InstanceScope();
40  		}
41  
42  		ScopedPreferenceStore store = new ScopedPreferenceStore(ctxs[0],
43  				qualifier);
44  		store.setSearchContexts(ctxs);
45  		return store;
46  	}
47  }