Copyright (c) 2006, 2008 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2006, 2008 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ltk.internal.core.refactoring.history;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;

import org.eclipse.ltk.core.refactoring.Refactoring;
import org.eclipse.ltk.core.refactoring.RefactoringDescriptor;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.internal.core.refactoring.RefactoringCoreMessages;

Default implementation of a refactoring descriptor. This refactoring descriptor can only be used as temporary storage to transfer refactoring descriptor data. createRefactoring(RefactoringStatus) always returns null. 
Since:
3.2/**
 * Default implementation of a refactoring descriptor.
 * This refactoring descriptor can only be used as temporary storage to transfer
 * refactoring descriptor data. {@link #createRefactoring(RefactoringStatus)} always returns null.
 *
 * @since 3.2
 */
public final class DefaultRefactoringDescriptor extends RefactoringDescriptor {

	
The map of arguments (element type: <String, String>) /** The map of arguments (element type: &lt;String, String&gt;) */
	private final Map<String, String> fArguments;

	
Creates a new default refactoring descriptor.
Params:
id – 
           the unique id of the refactoring
project – 
           the project name, or null
description – 
           the description
comment – 
           the comment, or null
arguments – 
           the argument map
flags – 
           the flags/**
	 * Creates a new default refactoring descriptor.
	 *
	 * @param id
	 *            the unique id of the refactoring
	 * @param project
	 *            the project name, or <code>null</code>
	 * @param description
	 *            the description
	 * @param comment
	 *            the comment, or <code>null</code>
	 * @param arguments
	 *            the argument map
	 * @param flags
	 *            the flags
	 */
	public DefaultRefactoringDescriptor(final String id, final String project, final String description, final String comment, final Map<String, String> arguments, final int flags) {
		super(id, project, description, comment, flags);
		Assert.isNotNull(arguments);
		fArguments= Collections.unmodifiableMap(new HashMap<>(arguments));
	}

	
{@inheritDoc}
Returns:
always null/**
	 * {@inheritDoc}
	 *
	 * @return always null
	 */
	@Override
	public Refactoring createRefactoring(final RefactoringStatus status) throws CoreException {
		status.merge(RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.DefaultRefactoringDescriptor_cannot_create_refactoring));
		return null;
	}

	
Returns the argument map
Returns:
the argument map./**
	 * Returns the argument map
	 *
	 * @return the argument map.
	 */
	public Map<String, String> getArguments() {
		return fArguments;
	}
}