Java tutorial
/* Copyright (C) 2003-2011 JabRef contributors. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package net.sf.jabref.gui.undo; import javax.swing.undo.AbstractUndoableEdit; import net.sf.jabref.gui.BasePanel; import net.sf.jabref.logic.l10n.Localization; import net.sf.jabref.model.database.BibDatabase; import net.sf.jabref.model.database.KeyCollisionException; import net.sf.jabref.model.entry.BibtexString; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class UndoableRemoveString extends AbstractUndoableEdit { private final BibDatabase base; private final BibtexString string; private final BasePanel panel; private static final Log LOGGER = LogFactory.getLog(UndoableRemoveString.class); public UndoableRemoveString(BasePanel panel, BibDatabase base, BibtexString string) { this.base = base; this.string = string; this.panel = panel; } @Override public String getUndoPresentationName() { return Localization.lang("Undo") + ": " + Localization.lang("remove string"); } @Override public String getRedoPresentationName() { return Localization.lang("Redo") + ": " + Localization.lang("remove string"); } @Override public void undo() { super.undo(); // Revert the change. try { base.addString(string); } catch (KeyCollisionException ex) { LOGGER.warn("Problem to undo `remove string`", ex); } panel.updateStringDialog(); } @Override public void redo() { super.redo(); // Redo the change. base.removeString(string.getId()); panel.updateStringDialog(); } }