| /******************************************************************************* |
| * Copyright (c) 2003, 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.ui.commands; |
| |
| import java.util.Map; |
| |
| /** |
| * A handler is the pluggable piece of a command that handles execution. Each |
| * command can have zero or more handlers associated with it (in general), of |
| * which only one will be active at any given moment in time. When the command |
| * is asked to execute, it will simply pass that request on to its active |
| * handler, if any. |
| * <p> |
| * This interface is not intended to be extended by clients. |
| * </p> |
| * |
| * @since 3.0 |
| * @deprecated Please use the "org.eclipse.core.commands" plug-in instead. This |
| * API is scheduled for deletion, see Bug 431177 for details |
| * @see org.eclipse.core.commands.IHandler |
| * @noreference This interface is scheduled for deletion. |
| * @noextend This interface is not intended to be extended by clients. |
| * @noimplement This interface is not intended to be implemented by clients. |
| */ |
| @Deprecated |
| @SuppressWarnings("all") |
| public interface IHandler { |
| |
| /** |
| * Registers an instance of <code>IHandlerListener</code> to listen for changes |
| * to properties of this instance. |
| * |
| * @param handlerListener 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. |
| */ |
| @Deprecated |
| void addHandlerListener(IHandlerListener handlerListener); |
| |
| /** |
| * Disposes of this handler. This method is run once when the object is no |
| * longer referenced. This can be used as an opportunity to unhook listeners |
| * from other objects. |
| */ |
| @Deprecated |
| void dispose(); |
| |
| /** |
| * Executes with the map of parameter values by name. |
| * |
| * @param parameterValuesByName the map of parameter values by name. Reserved |
| * for future use, must be <code>null</code>. |
| * @return the result of the execution. Reserved for future use, must be |
| * <code>null</code>. |
| * @throws ExecutionException if an exception occurred during execution. |
| */ |
| @Deprecated |
| Object execute(Map parameterValuesByName) throws ExecutionException; |
| |
| /** |
| * Returns the map of attribute values by name. |
| * <p> |
| * Notification is sent to all registered listeners if this property changes. |
| * </p> |
| * |
| * @return the map of attribute values by name. This map may be empty, but is |
| * guaranteed not to be <code>null</code>. If this map is not empty, its |
| * collection of keys is guaranteed to only contain instances of |
| * <code>String</code>. |
| */ |
| @Deprecated |
| Map getAttributeValuesByName(); |
| |
| /** |
| * Unregisters an instance of <code>IPropertyListener</code> listening for |
| * changes to properties of this instance. |
| * |
| * @param handlerListener the instance to unregister. Must not be |
| * <code>null</code>. If an attempt is made to unregister |
| * an instance which is not already registered with this |
| * instance, no operation is performed. |
| */ |
| @Deprecated |
| void removeHandlerListener(IHandlerListener handlerListener); |
| } |