| /******************************************************************************* |
| * Copyright (c) 2010, 2013 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.e4.core.di.annotations; |
| |
| import static java.lang.annotation.ElementType.FIELD; |
| import static java.lang.annotation.ElementType.METHOD; |
| import static java.lang.annotation.RetentionPolicy.RUNTIME; |
| |
| import java.lang.annotation.Documented; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.Target; |
| |
| /** |
| * This annotation indicates that injection field or method supports |
| * batching of updates. |
| * |
| * Unlike regular updates that are processed right away, grouped updates |
| * are performed at certain points, for instance, they could be processed |
| * when the system gets in an idle state. |
| * |
| * This is a performance improvement that can be used to eliminate extra updates |
| * on the injected objects that don't have to track the changes exactly, but |
| * rather only need to periodically catch up to the latest state of the injected variables. |
| * |
| * Note that the order of batched events is unspecified and is likely different |
| * from the original event order. As such, it is not recommended to use grouped updates on |
| * the methods that modify other context values. |
| * @since 1.3 |
| */ |
| @Documented |
| @Target({METHOD, FIELD}) |
| @Retention(RUNTIME) |
| public @interface GroupUpdates { |
| // intentionally left empty |
| } |