| /******************************************************************************* |
| * Copyright (c) 2008, 2011 Wind River Systems, Inc. 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: |
| * Michael Scharf (Wind River) - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.tm.internal.terminal.provisional.api; |
| |
| /** |
| * Uses an array of {@link ISettingsStore} to find a value. |
| * <p> |
| * <strong>EXPERIMENTAL</strong>. This class or interface has been added as part |
| * of a work in progress. There is no guarantee that this API will work or that |
| * it will remain the same. Please do not use this API without consulting with |
| * the <a href="http://www.eclipse.org/tm/">Target Management</a> team. |
| * </p> |
| */ |
| public class LayeredSettingsStore implements ISettingsStore { |
| |
| private final ISettingsStore[] fStores; |
| |
| /** |
| * @param stores the stores used to search the values. |
| * {@link #put(String, String)} will put the value in the |
| * first store in the list. |
| */ |
| public LayeredSettingsStore(ISettingsStore[] stores) { |
| fStores=stores; |
| } |
| /** |
| * Convince constructor for two stores |
| * @param s1 first store |
| * @param s2 second store |
| */ |
| public LayeredSettingsStore(ISettingsStore s1, ISettingsStore s2) { |
| this(new ISettingsStore[]{s1,s2}); |
| } |
| public String get(String key) { |
| for (int i = 0; i < fStores.length; i++) { |
| String value=fStores[i].get(key); |
| if(value!=null) |
| return value; |
| } |
| return null; |
| } |
| |
| public String get(String key, String defaultValue) { |
| String value=get(key); |
| if ((value == null) || (value.equals(""))) //$NON-NLS-1$ |
| return defaultValue; |
| return value; |
| } |
| |
| public void put(String key, String value) { |
| fStores[0].put(key,value); |
| } |
| |
| } |