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/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.core;

import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaModelStatusConstants;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.core.util.Messages;

/**
 * This operation renames resources (Package fragments and compilation units).
 *
 * <p>Notes:<ul>
 * <li>When a compilation unit is renamed, its main type and the constructors of the 
 *     main type are renamed.
 * </ul>
 */
public class RenameResourceElementsOperation extends MoveResourceElementsOperation {
/**
 * When executed, this operation will rename the specified elements with the given names in the
 * corresponding destinations.
 */
public RenameResourceElementsOperation(IJavaElement[] elements, IJavaElement[] destinations, String[] newNames, boolean force) {
  //a rename is a move to the same parent with a new name specified
  //these elements are from different parents
  super(elements, destinations, force);
  setRenamings(newNames);
}
/**
 * @see MultiOperation
 */
protected String getMainTaskName() {
  return Messages.operation_renameResourceProgress; 
}
/**
 * @see CopyResourceElementsOperation#isRename()
 */
protected boolean isRename() {
  return true;
}
/**
 * @see MultiOperation
 */
protected void verify(IJavaElement element) throws JavaModelException {
  super.verify(element);

  int elementType = element.getElementType();
  
  if (!(elementType == IJavaElement.COMPILATION_UNIT || elementType == IJavaElement.PACKAGE_FRAGMENT)) {
    error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
  }
  if (elementType == IJavaElement.COMPILATION_UNIT) {
    CompilationUnit cu = (CompilationUnit)element;
    if (cu.isWorkingCopy() && !cu.isPrimary()) {
      error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
    }
  }
  verifyRenaming(element);
}
}
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