FindReadReferencesAction


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 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.jdt.ui.actions;
12  
13  import org.eclipse.ui.IWorkbenchSite;
14  import org.eclipse.ui.PlatformUI;
15  
16  import org.eclipse.jdt.core.IField;
17  import org.eclipse.jdt.core.ILocalVariable;
18  import org.eclipse.jdt.core.search.IJavaSearchConstants;
19  
20  import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
21  import org.eclipse.jdt.internal.ui.JavaPluginImages;
22  import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
23  import org.eclipse.jdt.internal.ui.search.SearchMessages;
24  
25  /**
26   * Finds field read accesses of the selected element in the workspace.
27   * The action is applicable to selections representing a Java interface field.
28   * <p>
29   * This class may be instantiated; it is not intended to be subclassed.
30   * </p>
31   * 
32   * @since 2.0
33   */
34  public class FindReadReferencesAction extends FindReferencesAction {
35  
36      /**
37       * Creates a new <code>FindReadReferencesAction</code>. The action 
38       * requires that the selection provided by the site's selection provider is of type 
39       * <code>org.eclipse.jface.viewers.IStructuredSelection</code>.
40       * 
41       * @param site the site providing context information for this action
42       */
43      public FindReadReferencesAction(IWorkbenchSite site) {
44          super(site);
45      }
46  
47      /**
48       * Note: This constructor is for internal use only. Clients should not call this constructor.
49       * @param editor the Java editor
50       */
51      public FindReadReferencesAction(JavaEditor editor) {
52          super(editor);
53      }
54      
55      Class  [] getValidTypes() {
56          return new Class  [] { IField.class, ILocalVariable.class };
57      }
58  
59      void init() {
60          setText(SearchMessages.Search_FindReadReferencesAction_label); 
61          setToolTipText(SearchMessages.Search_FindReadReferencesAction_tooltip); 
62          setImageDescriptor(JavaPluginImages.DESC_OBJS_SEARCH_REF);
63          PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.FIND_READ_REFERENCES_IN_WORKSPACE_ACTION);
64      }
65      
66      int getLimitTo() {
67          return IJavaSearchConstants.READ_ACCESSES;
68      }   
69  
70      String   getOperationUnavailableMessage() {
71          return SearchMessages.JavaElementAction_operationUnavailable_field; 
72      }
73  }
74
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags