| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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 API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.activities; |
| |
| import java.util.Set; |
| |
| /** |
| * An instance of this interface allows clients to manage activities, as |
| * defined by the extension point <code>org.eclipse.ui.activities</code>. |
| * <p> |
| * This interface is not intended to be extended or implemented by clients. |
| * </p> |
| * |
| * @since 3.0 |
| */ |
| public interface IActivityManager { |
| |
| /** |
| * Registers an instance of <code>IActivityManagerListener</code> to |
| * listen for changes to properties of this instance. |
| * |
| * @param activityManagerListener |
| * the instance to register. Must not be <code>null</code>. |
| * If an attempt is made to register an instance which is |
| * already registered with this instance, no operation is |
| * performed. |
| */ |
| void addActivityManagerListener( |
| IActivityManagerListener activityManagerListener); |
| |
| /** |
| * Returns an instance of <code>IActivity</code> given an identifier. |
| * |
| * @param activityId |
| * an identifier. Must not be <code>null</code> |
| * @return an instance of <code>IActivity</code>. |
| */ |
| IActivity getActivity(String activityId); |
| |
| /** |
| * Returns an instance of <code>ICategory</code> given an identifier. |
| * |
| * @param categoryId |
| * an identifier. Must not be <code>null</code> |
| * @return an instance of <code>ICategory</code>. |
| */ |
| ICategory getCategory(String categoryId); |
| |
| /** |
| * Returns the set of identifiers to defined activities. |
| * <p> |
| * Notification is sent to all registered listeners if this property |
| * changes. |
| * </p> |
| * |
| * @return the set of identifiers to defined activities. This set may be |
| * empty, but is guaranteed not to be <code>null</code>. If this |
| * set is not empty, it is guaranteed to only contain instances of |
| * <code>String</code>. |
| */ |
| Set getDefinedActivityIds(); |
| |
| /** |
| * Returns the set of identifiers to defined categories. |
| * <p> |
| * Notification is sent to all registered listeners if this property |
| * changes. |
| * </p> |
| * |
| * @return the set of identifiers to defined categories. This set may be |
| * empty, but is guaranteed not to be <code>null</code>. If this |
| * set is not empty, it is guaranteed to only contain instances of |
| * <code>String</code>. |
| */ |
| Set getDefinedCategoryIds(); |
| |
| /** |
| * Returns the set of identifiers to enabled activities. |
| * <p> |
| * Notification is sent to all registered listeners if this property |
| * changes. |
| * </p> |
| * |
| * @return the set of identifiers to enabled activities. This set may be |
| * empty, but is guaranteed not to be <code>null</code>. If this |
| * set is not empty, it is guaranteed to only contain instances of |
| * <code>String</code>. |
| */ |
| Set getEnabledActivityIds(); |
| |
| /** |
| * Returns an instance of <code>IIdentifier</code> given an identifier. |
| * |
| * @param identifierId |
| * an identifier. Must not be <code>null</code> |
| * @return an instance of <code>IIdentifier</code>. |
| */ |
| IIdentifier getIdentifier(String identifierId); |
| |
| /** |
| * Removes an instance of <code>IActivityManagerListener</code> |
| * listening for changes to properties of this instance. |
| * |
| * @param activityManagerListener |
| * the instance to remove. Must not be <code>null</code>. |
| * If an attempt is made to remove an instance which is not |
| * already registered with this instance, no operation is |
| * performed. |
| */ |
| void removeActivityManagerListener( |
| IActivityManagerListener activityManagerListener); |
| } |