DocumentListener.java

/*******************************************************************************
 * Copyright (c) 2012-2015 Codenvy, S.A.
 * 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:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.ext.java.jdt.text;


/**
 * Interface for objects which are interested in getting informed about document changes. A listener is informed about document
 * changes before they are applied and after they have been applied. It is ensured that the document event passed into the
 * listener is the same for the two notifications, i.e. the two document events can be checked using object identity.
 * <p>
 * Clients may implement this interface.
 * </p>
 *
 * @see Document
 */
public interface DocumentListener {

    /**
     * The manipulation described by the document event will be performed.
     *
     * @param event
     *         the document event describing the document change
     */
    void documentAboutToBeChanged(DocumentEvent event);

    /**
     * The manipulation described by the document event has been performed.
     *
     * @param event
     *         the document event describing the document change
     */
    void documentChanged(DocumentEvent event);
}