Copyright (c) 2004, 2015 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) 2004, 2015 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.core.internal.preferences;

import org.eclipse.core.runtime.preferences.IExportedPreferences;

Since:
3.0/**
 * @since 3.0
 */
public class ExportedPreferences extends EclipsePreferences implements IExportedPreferences {

	private boolean isExportRoot = false;
	private String version;

	public static IExportedPreferences newRoot() {
		return new ExportedPreferences(null, ""); //$NON-NLS-1$
	}

	protected ExportedPreferences(EclipsePreferences parent, String name) {
		super(parent, name);
	}


	@Override
	public boolean isExportRoot() {
		return isExportRoot;
	}

	/*
	 * Internal method called only by the import/export mechanism.
	 */
	public void setExportRoot() {
		isExportRoot = true;
	}

	/*
	 * Internal method called only by the import/export mechanism to
	 * validate bundle versions.
	 */
	public String getVersion() {
		return version;
	}

	/*
	 * Internal method called only by the import/export mechanism to
	 * validate bundle versions.
	 */
	public void setVersion(String version) {
		this.version = version;
	}

	@Override
	protected EclipsePreferences internalCreate(EclipsePreferences nodeParent, String nodeName, Object context) {
		return new ExportedPreferences(nodeParent, nodeName);
	}

	/*
	 * Return a string representation of this object. To be used for
	 * debugging purposes only.
	 */
	@Override
	public String toString() {
		StringBuilder buffer = new StringBuilder();
		if (isExportRoot)
			buffer.append("* "); //$NON-NLS-1$
		buffer.append(absolutePath());
		if (version != null)
			buffer.append(" (" + version + ')'); //$NON-NLS-1$
		return buffer.toString();
	}
}