org.eclipse.jdt.core.manipulation/refactoring/org/eclipse/jdt/core/refactoring/descriptors/RenameJavaElementDescriptor.java

/*******************************************************************************
 * Copyright (c) 2006, 2008 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.core.refactoring.descriptors;

import java.util.Map;

import org.eclipse.core.runtime.Assert;

import org.eclipse.ltk.core.refactoring.RefactoringContribution;
import org.eclipse.ltk.core.refactoring.RefactoringCore;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;

import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.ITypeParameter;
import org.eclipse.jdt.core.refactoring.IJavaRefactorings;

import org.eclipse.jdt.internal.core.refactoring.descriptors.DescriptorMessages;
import org.eclipse.jdt.internal.core.refactoring.descriptors.JavaRefactoringDescriptorUtil;

/**
 * Refactoring descriptor for the rename java element refactoring.
 * <p>
 * An instance of this refactoring descriptor may be obtained by calling
 * {@link RefactoringContribution#createDescriptor()} on a refactoring
 * contribution requested by invoking
 * {@link RefactoringCore#getRefactoringContribution(String)} with the
 * appropriate refactoring id.
 * </p>
 * <p>
 * Note: this class is not intended to be instantiated by clients.
 * </p>
 * 
 * @since 1.1
 * 
 * @noinstantiate This class is not intended to be instantiated by clients.
 * @noextend This class is not intended to be subclassed by clients.
 */
public final class RenameJavaElementDescriptor extends JavaRefactoringDescriptor {

	/** The delegate attribute */
	private static final String ATTRIBUTE_DELEGATE= "delegate"; //$NON-NLS-1$

	/** The deprecate attribute */
	private static final String ATTRIBUTE_DEPRECATE= "deprecate"; //$NON-NLS-1$

	/** The hierarchical attribute */
	private static final String ATTRIBUTE_HIERARCHICAL= "hierarchical"; //$NON-NLS-1$

	/** The match strategy attribute */
	private static final String ATTRIBUTE_MATCH_STRATEGY= "matchStrategy"; //$NON-NLS-1$

	/** The parameter attribute */
	private static final String ATTRIBUTE_PARAMETER= "parameter"; //$NON-NLS-1$

	/** The patterns attribute */
	private static final String ATTRIBUTE_PATTERNS= "patterns"; //$NON-NLS-1$

	/** The qualified attribute */
	private static final String ATTRIBUTE_QUALIFIED= "qualified"; //$NON-NLS-1$

	/** The rename getter attribute */
	private static final String ATTRIBUTE_RENAME_GETTER= "getter"; //$NON-NLS-1$

	/** The rename setter attribute */
	private static final String ATTRIBUTE_RENAME_SETTER= "setter"; //$NON-NLS-1$

	/** The similar declarations attribute */
	private static final String ATTRIBUTE_SIMILAR_DECLARATIONS= "similarDeclarations"; //$NON-NLS-1$

	/** The textual matches attribute */
	private static final String ATTRIBUTE_TEXTUAL_MATCHES= "textual"; //$NON-NLS-1$

	/**
	 * Similar declaration updating strategy which finds exact names and
	 * embedded names as well (value: <code>2</code>).
	 */
	public static final int STRATEGY_EMBEDDED= 2;

	/**
	 * Similar declaration updating strategy which finds exact names only
	 * (value: <code>1</code>).
	 */
	public static final int STRATEGY_EXACT= 1;

	/**
	 * Similar declaration updating strategy which finds exact names, embedded
	 * names and name suffixes (value: <code>3</code>).
	 */
	public static final int STRATEGY_SUFFIX= 3;

	/** @deprecated */
	private static final String RENAME_RESOURCE= IJavaRefactorings.RENAME_RESOURCE;
	
	
	/** The delegate attribute */
	private boolean fDelegate= false;

	/** The deprecate attribute */
	private boolean fDeprecate= false;

	/** The hierarchical attribute */
	private boolean fHierarchical= false;

	/**
	 * The java element attribute.
	 * WARNING: may not exist, see comment in
	 * {@link JavaRefactoringDescriptorUtil#handleToElement(org.eclipse.jdt.core.WorkingCopyOwner, String, String, boolean)}.
	 */
	private IJavaElement fJavaElement= null;

	/** The match strategy */
	private int fMatchStrategy= STRATEGY_EXACT;

	/** The name attribute */
	private String fName= null;

	/** The patterns attribute */
	private String fPatterns= null;

	/** The qualified attribute */
	private boolean fQualified= false;

	/** The references attribute */
	private boolean fReferences= false;

	/** The rename getter attribute */
	private boolean fRenameGetter= false;

	/** The rename setter attribute */
	private boolean fRenameSetter= false;

	/** The similar declarations attribute */
	private boolean fSimilarDeclarations= false;

	/** The textual attribute */
	private boolean fTextual= false;

	/**
	 * Creates a new refactoring descriptor.
	 * 
	 * @param id
	 *            the unique id of the rename refactoring
	 * @see IJavaRefactorings
	 */
	public RenameJavaElementDescriptor(final String id) {
		super(id);
		Assert.isLegal(checkId(id), "Refactoring id is not a rename refactoring id"); //$NON-NLS-1$
	}
	
	/**
	 * Creates a new refactoring descriptor.
	 * 
	 * @param id 
	 *            the ID of this descriptor
	 * @param project
	 *            the non-empty name of the project associated with this
	 *            refactoring, or <code>null</code> for a workspace
	 *            refactoring
	 * @param description
	 *            a non-empty human-readable description of the particular
	 *            refactoring instance
	 * @param comment
	 *            the human-readable comment of the particular refactoring
	 *            instance, or <code>null</code> for no comment
	 * @param arguments
	 * 			  a map of arguments that will be persisted and describes
	 * 			  all settings for this refactoring
	 * @param flags
	 *            the flags of the refactoring descriptor
	 *            
	 * @throws IllegalArgumentException if the argument map contains invalid keys/values
	 * 
	 * @since 1.2
	 */
	public RenameJavaElementDescriptor(String id, String project, String description, String comment, Map arguments, int flags) {
		super(id, project, description, comment, arguments, flags);
		Assert.isLegal(checkId(id), "Refactoring id is not a rename refactoring id"); //$NON-NLS-1$
		fName= JavaRefactoringDescriptorUtil.getString(fArguments, ATTRIBUTE_NAME);
		if (getID().equals(IJavaRefactorings.RENAME_TYPE_PARAMETER)) {
			fJavaElement= JavaRefactoringDescriptorUtil.getJavaElement(fArguments, ATTRIBUTE_INPUT, getProject());
			String parameterName= JavaRefactoringDescriptorUtil.getString(fArguments, ATTRIBUTE_PARAMETER);
			if (fJavaElement instanceof IType) {
				fJavaElement= ((IType) fJavaElement).getTypeParameter(parameterName);
			}
			if (fJavaElement instanceof IMethod) {
				fJavaElement=((IMethod) fJavaElement).getTypeParameter(parameterName);
			}
		} else
			fJavaElement= JavaRefactoringDescriptorUtil.getJavaElement(fArguments, ATTRIBUTE_INPUT, getProject());
		final int type= fJavaElement.getElementType();
		if (type != IJavaElement.PACKAGE_FRAGMENT_ROOT)
			fReferences= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_REFERENCES, fReferences);
		if (type == IJavaElement.FIELD) {
			fRenameGetter= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_RENAME_GETTER, fRenameGetter);
			fRenameSetter= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_RENAME_SETTER, fRenameSetter);
		}
		switch (type) {
			case IJavaElement.PACKAGE_FRAGMENT:
			case IJavaElement.TYPE:
			case IJavaElement.FIELD:
				fTextual= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_TEXTUAL_MATCHES, fTextual);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.METHOD:
			case IJavaElement.FIELD:
				fDeprecate= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_DEPRECATE, fDeprecate);
				fDelegate= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_DELEGATE, fDelegate);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.PACKAGE_FRAGMENT:
			case IJavaElement.TYPE:
				fQualified= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_QUALIFIED, fQualified);
				fPatterns= JavaRefactoringDescriptorUtil.getString(fArguments, ATTRIBUTE_PATTERNS, true);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.TYPE:
				fSimilarDeclarations= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_SIMILAR_DECLARATIONS, fSimilarDeclarations);
				fMatchStrategy= JavaRefactoringDescriptorUtil.getInt(fArguments, ATTRIBUTE_MATCH_STRATEGY, fMatchStrategy);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.PACKAGE_FRAGMENT:
				fHierarchical= JavaRefactoringDescriptorUtil.getBoolean(fArguments, ATTRIBUTE_HIERARCHICAL, fHierarchical);
				break;
			default:
				break;
		}
	}

	/**
	 * Checks whether the refactoring id is valid.
	 * 
	 * @param id
	 *            the refactoring id
	 * @return the outcome of the validation
	 */
	private boolean checkId(final String id) {
		Assert.isNotNull(id);
		if (id.equals(IJavaRefactorings.RENAME_COMPILATION_UNIT))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_ENUM_CONSTANT))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_FIELD))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_JAVA_PROJECT))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_LOCAL_VARIABLE))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_METHOD))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_PACKAGE))
			return true;
		else if (id.equals(RENAME_RESOURCE))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_SOURCE_FOLDER))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_TYPE))
			return true;
		else if (id.equals(IJavaRefactorings.RENAME_TYPE_PARAMETER))
			return true;
		return false;
	}

	/**
	 * {@inheritDoc}
	 */
	protected void populateArgumentMap() {
		super.populateArgumentMap();
		JavaRefactoringDescriptorUtil.setString(fArguments, ATTRIBUTE_NAME, fName);
		if (getID().equals(IJavaRefactorings.RENAME_TYPE_PARAMETER)) {
			final ITypeParameter parameter= (ITypeParameter) fJavaElement;
			JavaRefactoringDescriptorUtil.setJavaElement(fArguments, ATTRIBUTE_INPUT, getProject(), parameter.getDeclaringMember());
			JavaRefactoringDescriptorUtil.setString(fArguments, ATTRIBUTE_PARAMETER, parameter.getElementName());
		} else
			JavaRefactoringDescriptorUtil.setJavaElement(fArguments, ATTRIBUTE_INPUT, getProject(), fJavaElement);
		final int type= fJavaElement.getElementType();
		if (type != IJavaElement.PACKAGE_FRAGMENT_ROOT)
			JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_REFERENCES, fReferences);
		if (type == IJavaElement.FIELD) {
			JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_RENAME_GETTER, fRenameGetter);
			JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_RENAME_SETTER, fRenameSetter);
		}
		switch (type) {
			case IJavaElement.PACKAGE_FRAGMENT:
			case IJavaElement.TYPE:
			case IJavaElement.FIELD:
				JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_TEXTUAL_MATCHES, fTextual);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.METHOD:
			case IJavaElement.FIELD:
				JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_DEPRECATE, fDeprecate);
				JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_DELEGATE, fDelegate);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.PACKAGE_FRAGMENT:
			case IJavaElement.TYPE:
				JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_QUALIFIED, fQualified);
				JavaRefactoringDescriptorUtil.setString(fArguments, ATTRIBUTE_PATTERNS, fPatterns);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.TYPE:
				JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_SIMILAR_DECLARATIONS, fSimilarDeclarations);
				JavaRefactoringDescriptorUtil.setInt(fArguments, ATTRIBUTE_MATCH_STRATEGY, fMatchStrategy);
				break;
			default:
				break;
		}
		switch (type) {
			case IJavaElement.PACKAGE_FRAGMENT:
				JavaRefactoringDescriptorUtil.setBoolean(fArguments, ATTRIBUTE_HIERARCHICAL, fHierarchical);
				break;
			default:
				break;
		}
	}

	/**
	 * Determines whether the delegate for a Java element should be declared as
	 * deprecated.
	 * <p>
	 * Note: Deprecation of the delegate is currently applicable to the Java elements
	 * {@link IMethod} and {@link IField}. The default is to not deprecate the
	 * delegate.
	 * </p>
	 * 
	 * @param deprecate
	 *            <code>true</code> to deprecate the delegate,
	 *            <code>false</code> otherwise
	 */
	public void setDeprecateDelegate(final boolean deprecate) {
		fDeprecate= deprecate;
	}

	/**
	 * Sets the file name patterns to use during qualified name updating.
	 * <p>
	 * The syntax of the file name patterns is a sequence of individual name
	 * patterns, separated by comma. Additionally, wildcard characters '*' (any
	 * string) and '?' (any character) may be used.
	 * </p>
	 * <p>
	 * Note: If file name patterns are set, qualified name updating must be
	 * enabled by calling {@link #setUpdateQualifiedNames(boolean)}.
	 * </p>
	 * <p>
	 * Note: Qualified name updating is currently applicable to the Java elements
	 * {@link IPackageFragment} and {@link IType}. The default is to use no
	 * file name patterns (meaning that all files are processed).
	 * </p>
	 * 
	 * @param patterns
	 *            the non-empty file name patterns string
	 */
	public void setFileNamePatterns(final String patterns) {
		Assert.isNotNull(patterns);
		Assert.isLegal(!"".equals(patterns), "Pattern must not be empty"); //$NON-NLS-1$ //$NON-NLS-2$
		fPatterns= patterns;
	}

	/**
	 * Sets the Java element to be renamed.
	 * <p>
	 * Note: If the Java element to be renamed is of type
	 * {@link IJavaElement#JAVA_PROJECT}, clients are required to to set the
	 * project name to <code>null</code>.
	 * </p>
	 * 
	 * @param element
	 *            the Java element to be renamed
	 */
	public void setJavaElement(final IJavaElement element) {
		Assert.isNotNull(element);
		fJavaElement= element;
	}

	/**
	 * Determines whether the the original Java element should be kept as
	 * delegate to the renamed one.
	 * <p>
	 * Note: Keeping of original elements as delegates is currently applicable to the Java
	 * elements {@link IMethod} and {@link IField}. The default is to not keep
	 * the original as delegate.
	 * </p>
	 * 
	 * @param delegate
	 *            <code>true</code> to keep the original, <code>false</code>
	 *            otherwise
	 */
	public void setKeepOriginal(final boolean delegate) {
		fDelegate= delegate;
	}

	/**
	 * Determines which strategy should be used during similar declaration
	 * updating.
	 * <p>
	 * Valid arguments are {@link #STRATEGY_EXACT}, {@link #STRATEGY_EMBEDDED}
	 * or {@link #STRATEGY_SUFFIX}.
	 * </p>
	 * <p>
	 * Note: Similar declaration updating is currently applicable to Java elements of type
	 * {@link IType}. The default is to use the {@link #STRATEGY_EXACT} match
	 * strategy.
	 * </p>
	 * 
	 * @param strategy
	 *            the match strategy to use
	 */
	public void setMatchStrategy(final int strategy) {
		Assert.isLegal(strategy == STRATEGY_EXACT || strategy == STRATEGY_EMBEDDED || strategy == STRATEGY_SUFFIX, "Wrong match strategy argument"); //$NON-NLS-1$
		fMatchStrategy= strategy;
	}

	/**
	 * Sets the new name to rename the Java element to.
	 * 
	 * @param name
	 *            the non-empty new name to set
	 */
	public void setNewName(final String name) {
		Assert.isNotNull(name);
		Assert.isLegal(!"".equals(name), "Name must not be empty"); //$NON-NLS-1$//$NON-NLS-2$
		fName= name;
	}

	/**
	 * Sets the project name of this refactoring.
	 * <p>
	 * Note: If the Java element to be renamed is of type
	 * {@link IJavaElement#JAVA_PROJECT}, clients are required to to set the
	 * project name to <code>null</code>.
	 * </p>
	 * <p>
	 * The default is to associate the refactoring with the workspace.
	 * </p>
	 * 
	 * @param project
	 *            the non-empty project name to set, or <code>null</code> for
	 *            the workspace
	 * 
	 * @see #getProject()
	 */
	public void setProject(final String project) {
		super.setProject(project);
	}

	/**
	 * Determines whether getter methods for the Java element should be renamed.
	 * <p>
	 * Note: Renaming of getter methods is applicable for {@link IField}
	 * elements which do not represent enum constants only. The default is to
	 * not rename any getter methods.
	 * </p>
	 * 
	 * @param rename
	 *            <code>true</code> to rename getter methods,
	 *            <code>false</code> otherwise
	 */
	public void setRenameGetters(final boolean rename) {
		fRenameGetter= rename;
	}

	/**
	 * Determines whether setter methods for the Java element should be renamed.
	 * <p>
	 * Note: Renaming of setter methods is applicable for {@link IField}
	 * elements which do not represent enum constants only. The default is to
	 * not rename any setter methods.
	 * </p>
	 * 
	 * @param rename
	 *            <code>true</code> to rename setter methods,
	 *            <code>false</code> otherwise
	 */
	public void setRenameSetters(final boolean rename) {
		fRenameSetter= rename;
	}

	/**
	 * Determines whether other Java elements in the hierarchy of the input
	 * element should be renamed as well.
	 * <p>
	 * Note: Hierarchical updating is currently applicable for Java elements of
	 * type {@link IPackageFragment}. The default is to not update Java
	 * elements hierarchically.
	 * </p>
	 * 
	 * @param update
	 *            <code>true</code> to update hierarchically,
	 *            <code>false</code> otherwise
	 */
	public void setUpdateHierarchy(final boolean update) {
		fHierarchical= update;
	}

	/**
	 * Determines whether qualified names of the Java element should be renamed.
	 * <p>
	 * Qualified name updating adapts fully qualified names of the Java element
	 * to be renamed in non-Java text files. Clients may specify file name
	 * patterns by calling {@link #setFileNamePatterns(String)} to constrain the
	 * set of text files to be processed.
	 * </p>
	 * <p>
	 * Note: Qualified name updating is currently applicable to the Java elements
	 * {@link IPackageFragment} and {@link IType}. The default is to not rename
	 * qualified names.
	 * </p>
	 * 
	 * @param update
	 *            <code>true</code> to update qualified names,
	 *            <code>false</code> otherwise
	 */
	public void setUpdateQualifiedNames(final boolean update) {
		fQualified= update;
	}

	/**
	 * Determines whether references to the Java element should be renamed.
	 * <p>
	 * Note: Reference updating is currently applicable to all Java element types except
	 * {@link IPackageFragmentRoot}. The default is to not update references.
	 * </p>
	 * 
	 * @param update
	 *            <code>true</code> to update references, <code>false</code>
	 *            otherwise
	 */
	public void setUpdateReferences(final boolean update) {
		fReferences= update;
	}

	/**
	 * Determines whether similar declarations of the Java element should be
	 * updated.
	 * <p>
	 * Note: Similar declaration updating is currently applicable to Java elements of type
	 * {@link IType}. The default is to not update similar declarations.
	 * </p>
	 * 
	 * @param update
	 *            <code>true</code> to update similar declarations,
	 *            <code>false</code> otherwise
	 */
	public void setUpdateSimilarDeclarations(final boolean update) {
		fSimilarDeclarations= update;
	}

	/**
	 * Determines whether textual occurrences of the Java element should be
	 * renamed.
	 * <p>
	 * Textual occurrence updating adapts textual occurrences of the Java
	 * element to be renamed in Java comments and Java strings.
	 * </p>
	 * <p>
	 * Note: Textual occurrence updating is currently applicable to the Java elements
	 * {@link IPackageFragment}, {@link IType} and {@link IField}. The default
	 * is to not rename textual occurrences.
	 * </p>
	 * 
	 * @param update
	 *            <code>true</code> to update occurrences, <code>false</code>
	 *            otherwise
	 */
	public void setUpdateTextualOccurrences(final boolean update) {
		fTextual= update;
	}

	/**
	 * {@inheritDoc}
	 */
	public RefactoringStatus validateDescriptor() {
		RefactoringStatus status= super.validateDescriptor();
		if (fName == null || "".equals(fName)) //$NON-NLS-1$
			status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameResourceDescriptor_no_new_name));
		if (fJavaElement == null)
			status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_no_java_element));
		else {
			final int type= fJavaElement.getElementType();
			if (type == IJavaElement.JAVA_PROJECT && getProject() != null)
				status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_project_constraint));
			if (type == IJavaElement.PACKAGE_FRAGMENT_ROOT && fReferences)
				status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_reference_constraint));
			if (fTextual) {
				switch (type) {
					case IJavaElement.PACKAGE_FRAGMENT:
					case IJavaElement.TYPE:
					case IJavaElement.FIELD:
						break;
					default:
						status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_textual_constraint));
				}
			}
			if (fDeprecate) {
				switch (type) {
					case IJavaElement.METHOD:
					case IJavaElement.FIELD:
						break;
					default:
						status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_deprecation_constraint));
				}
			}
			if (fDelegate) {
				switch (type) {
					case IJavaElement.METHOD:
					case IJavaElement.FIELD:
						break;
					default:
						status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_delegate_constraint));
				}
			}
			if (fRenameGetter || fRenameSetter) {
				if (type != IJavaElement.FIELD)
					status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_accessor_constraint));
			}
			if (fQualified) {
				switch (type) {
					case IJavaElement.PACKAGE_FRAGMENT:
					case IJavaElement.TYPE:
						break;
					default:
						status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_qualified_constraint));
				}
			}
			if (fSimilarDeclarations) {
				switch (type) {
					case IJavaElement.TYPE:
						break;
					default:
						status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_similar_constraint));
				}
			}
			if (fHierarchical) {
				switch (type) {
					case IJavaElement.PACKAGE_FRAGMENT:
						break;
					default:
						status.merge(RefactoringStatus.createFatalErrorStatus(DescriptorMessages.RenameJavaElementDescriptor_hierarchical_constraint));
				}
			}
		}
		return status;
	}
}