/*******************************************************************************
 * Copyright (c) 2000, 2007 IBM Corporation and others.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 *
 
 *******************************************************************************/
package org.eclipse.dltk.launching;

import org.eclipse.dltk.internal.launching.DLTKLaunchingPlugin;

/**
 * A Interpreter install changed listener is notified when the workspace default
 * Interpreter install changes, or when an attribute of a specific Interpreter
 * install changes. Listeners register with <code>ScriptRuntime</code>.
 * <p>
 * Clients may implement this interface.
 * </p>
 * 
 */
public interface IInterpreterInstallChangedListener {

	/**
	 * Property constant indicating the library locations associated with a
	 * Interpreter install have changed.
	 */
	public static final String PROPERTY_LIBRARY_LOCATIONS = DLTKLaunchingPlugin
			.getUniqueIdentifier()
			+ ".PROPERTY_LIBRARY_LOCATIONS"; //$NON-NLS-1$

	public static final String PROPERTY_ENVIRONMENT_VARIABLES = DLTKLaunchingPlugin
			.getUniqueIdentifier()
			+ ".PROPERTY_ENVIRONMENT_VARIABLES"; //$NON-NLS-1$

	/**
	 * Property constant indicating the name associated with a Interpreter
	 * install has changed.
	 */
	public static final String PROPERTY_NAME = DLTKLaunchingPlugin
			.getUniqueIdentifier()
			+ ".PROPERTY_NAME"; //$NON-NLS-1$

	/**
	 * Property constant indicating the install location of a Interpreter
	 * install has changed.
	 */
	public static final String PROPERTY_INSTALL_LOCATION = DLTKLaunchingPlugin
			.getUniqueIdentifier()
			+ ".PROPERTY_INSTALL_LOCATION"; //$NON-NLS-1$

	/**
	 * Property constant indicating the Interpreter arguments associated with a
	 * Interpreter install has changed.
	 * 
	 * 
	 */
	public static final String PROPERTY_Interpreter_ARGUMENTS = DLTKLaunchingPlugin
			.getUniqueIdentifier()
			+ ".PROPERTY_Interpreter_ARGUMENTS"; //$NON-NLS-1$

	/**
	 * Property constant indicating the install location of a Interpreter
	 * install has changed.
	 * 
	 * @since 2.0
	 */
	public static final String PROPERTY_EXTENSIONS = DLTKLaunchingPlugin
			.getUniqueIdentifier()
			+ ".PROPERTY_EXTENSIONS"; //$NON-NLS-1$

	/**
	 * Notification that the default interpreter install has changed.
	 * 
	 * @param previous
	 *            the Interpreter install that was previously assigned to the
	 *            workspace, possibly <code>null</code>
	 * @param current
	 *            the Interpreter install that is currently assigned to the
	 *            workspace, possibly <code>null</code>
	 */
	public void defaultInterpreterInstallChanged(IInterpreterInstall previous,
			IInterpreterInstall current);

	/**
	 * Notification that a property of a Interpreter install has changed.
	 * 
	 * @param event
	 *            event describing the change. The Interpreter that has changed
	 *            is the source object associated with the event.
	 */
	public void interpreterChanged(PropertyChangeEvent event);

	/**
	 * Notification that a Interpreter has been created.
	 * 
	 * @param Interpreter
	 *            the Interpreter that has been created
	 */
	public void interpreterAdded(IInterpreterInstall Interpreter);

	/**
	 * Notification that a Interpreter has been disposed.
	 * 
	 * @param Interpreter
	 *            the Interpreter that has been disposed
	 */
	public void interpreterRemoved(IInterpreterInstall Interpreter);

}