net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/core/RenameElementsOperation.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.core;
  12
  13 import net.sourceforge.phpdt.core.IJavaElement;
  14 import net.sourceforge.phpdt.core.IJavaModelStatus;
  15 import net.sourceforge.phpdt.core.IJavaModelStatusConstants;
  16 import net.sourceforge.phpdt.core.ISourceReference;
  17 import net.sourceforge.phpdt.core.JavaModelException;
  18 import net.sourceforge.phpdt.internal.core.util.Util;
  19
  20 /**
  21  * This operation renames elements.
  22  *
  23  * <p>
  24  * Notes:
  25  * <ul>
  26  * <li>Resource rename is not supported - this operation only renames elements
  27  * contained in compilation units.
  28  * <li>When a main type is renamed, its compilation unit and constructors are
  29  * renamed.
  30  * <li>Constructors cannot be renamed.
  31  * </ul>
  32  */
  33 public class RenameElementsOperation extends MoveElementsOperation {
  34         /**
  35          * When executed, this operation will rename the specified elements with the
  36          * given names in the corresponding destinations.
  37          */
  38         public RenameElementsOperation(IJavaElement[] elements,
  39                         IJavaElement[] destinations, String[] newNames, boolean force) {
  40                 // a rename is a move to the same parent with a new name specified
  41                 // these elements are from different parents
  42                 super(elements, destinations, force);
  43                 setRenamings(newNames);
  44         }
  45
  46         /**
  47          * @see MultiOperation
  48          */
  49         protected String getMainTaskName() {
  50                 return Util.bind("operation.renameElementProgress"); //$NON-NLS-1$
  51         }
  52
  53         /**
  54          * @see CopyElementsOperation#isRename()
  55          */
  56         protected boolean isRename() {
  57                 return true;
  58         }
  59
  60         /**
  61          * @see MultiOperation
  62          */
  63         protected IJavaModelStatus verify() {
  64                 IJavaModelStatus status = super.verify();
  65                 if (!status.isOK())
  66                         return status;
  67                 if (fRenamingsList == null || fRenamingsList.length == 0)
  68                         return new JavaModelStatus(IJavaModelStatusConstants.NULL_NAME);
  69                 return JavaModelStatus.VERIFIED_OK;
  70         }
  71
  72         /**
  73          * @see MultiOperation
  74          */
  75         protected void verify(IJavaElement element) throws JavaModelException {
  76                 int elementType = element.getElementType();
  77
  78                 if (element == null || !element.exists())
  79                         error(IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, element);
  80
  81                 if (element.isReadOnly())
  82                         error(IJavaModelStatusConstants.READ_ONLY, element);
  83
  84                 if (!(element instanceof ISourceReference))
  85                         error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
  86
  87                 if (elementType < IJavaElement.TYPE
  88                                 || elementType == IJavaElement.INITIALIZER)
  89                         error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
  90
  91                 verifyRenaming(element);
  92         }
  93 }