/*******************************************************************************
 * Copyright (c) 2007, 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 implementation and ideas 
 *******************************************************************************/
package org.python.pydev.core.path_watch;

import java.io.File;

/*
 * Abstract class which contains stub methods. Sub-classes to over-ride
 * methods which they are interested in.
 */
abstract class DirectoryChangeListener {

    public void startPoll() {
        // do nothing
    }

    public void stopPoll() {
        // do nothing
    }

    public boolean isInterested(File file) {
        return false;
    }

    public boolean added(File file) {
        return false;
    }

    public boolean removed(File file) {
        return false;
    }

    public boolean changed(File file) {
        return false;
    }

    // TODO this method name needs to be more descriptive. getLastModified?
    public Long getSeenFile(File file) {
        return null;
    }
}
