Java tutorial
/******************************************************************************* * Copyright (c) 2000, 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.jface.preference; /** * An interface used by a preference page to talk to * its dialog. */ public interface IPreferencePageContainer { /** * Returns the preference store. * * @return the preference store, or <code>null</code> if none */ public IPreferenceStore getPreferenceStore(); /** * Adjusts the enable state of the OK * button to reflect the state of the currently active * page in this container. * <p> * This method is called by the container itself * when its preference page changes and may be called * by the page at other times to force a button state * update. * </p> */ public void updateButtons(); /** * Updates the message (or error message) shown in the message line to * reflect the state of the currently active page in this container. * <p> * This method is called by the container itself * when its preference page changes and may be called * by the page at other times to force a message * update. * </p> */ public void updateMessage(); /** * Updates the title to reflect the state of the * currently active page in this container. * <p> * This method is called by the container itself * when its page changes and may be called * by the page at other times to force a title * update. * </p> */ public void updateTitle(); }