Copyright (c) 2006, 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) 2006, 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.jdt.internal.launching;

import org.eclipse.jdt.launching.IVMInstall;
import org.eclipse.jdt.launching.IVMInstallChangedListener;
import org.eclipse.jdt.launching.PropertyChangeEvent;

Simple VM listener that reports whether VM settings have changed.
Since:
3.2/**
 * Simple VM listener that reports whether VM settings have changed.
 *
 * @since 3.2
 *
 */
public class VMListener implements IVMInstallChangedListener {

	private boolean fChanged = false;

	/* (non-Javadoc)
	 * @see org.eclipse.jdt.launching.IVMInstallChangedListener#defaultVMInstallChanged(org.eclipse.jdt.launching.IVMInstall, org.eclipse.jdt.launching.IVMInstall)
	 */
	@Override
	public void defaultVMInstallChanged(IVMInstall previous, IVMInstall current) {
		fChanged = true;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jdt.launching.IVMInstallChangedListener#vmAdded(org.eclipse.jdt.launching.IVMInstall)
	 */
	@Override
	public void vmAdded(IVMInstall vm) {
		fChanged = true;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jdt.launching.IVMInstallChangedListener#vmChanged(org.eclipse.jdt.launching.PropertyChangeEvent)
	 */
	@Override
	public void vmChanged(PropertyChangeEvent event) {
		fChanged = true;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jdt.launching.IVMInstallChangedListener#vmRemoved(org.eclipse.jdt.launching.IVMInstall)
	 */
	@Override
	public void vmRemoved(IVMInstall vm) {
		fChanged = true;
	}

	public boolean isChanged() {
		return fChanged;
	}

}