| /* |
| * Copyright (c) OSGi Alliance (2001, 2015). All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.osgi.framework; |
| |
| import org.osgi.annotation.versioning.ConsumerType; |
| |
| /** |
| * A synchronous {@code BundleEvent} listener. {@code SynchronousBundleListener} |
| * is a listener interface that may be implemented by a bundle developer. When a |
| * {@code BundleEvent} is fired, it is synchronously delivered to a |
| * {@code SynchronousBundleListener}. The Framework may deliver |
| * {@code BundleEvent} objects to a {@code SynchronousBundleListener} out of |
| * order and may concurrently call and/or reenter a |
| * {@code SynchronousBundleListener}. |
| * |
| * <p> |
| * For {@code BundleEvent} types {@link BundleEvent#STARTED STARTED} and |
| * {@link BundleEvent#LAZY_ACTIVATION LAZY_ACTIVATION}, the Framework must not |
| * hold the referenced bundle's "state change" lock when the |
| * {@code BundleEvent} is delivered to a {@code SynchronousBundleListener}. For |
| * the other {@code BundleEvent} types, the Framework must hold the referenced |
| * bundle's "state change" lock when the {@code BundleEvent} is |
| * delivered to a {@code SynchronousBundleListener}. A |
| * {@code SynchronousBundleListener} cannot directly call life cycle methods on |
| * the referenced bundle when the Framework is holding the referenced bundle's |
| * "state change" lock. |
| * |
| * <p> |
| * A {@code SynchronousBundleListener} object is registered with the Framework |
| * using the {@link BundleContext#addBundleListener(BundleListener)} method. |
| * {@code SynchronousBundleListener} objects are called with a |
| * {@code BundleEvent} object when a bundle has been installed, resolved, |
| * starting, started, stopping, stopped, updated, unresolved, or uninstalled. |
| * <p> |
| * Unlike normal {@code BundleListener} objects, |
| * {@code SynchronousBundleListener}s are synchronously called during bundle |
| * lifecycle processing. The bundle lifecycle processing will not proceed until |
| * all {@code SynchronousBundleListener}s have completed. |
| * {@code SynchronousBundleListener} objects will be called prior to |
| * {@code BundleListener} objects. |
| * <p> |
| * {@code AdminPermission[bundle,LISTENER]} is required to add or remove a |
| * {@code SynchronousBundleListener} object. |
| * |
| * @since 1.1 |
| * @see BundleEvent |
| * @ThreadSafe |
| * @author $Id: e1555f69b0cba5d9d8b6ad51add3d9e02827ef66 $ |
| */ |
| @ConsumerType |
| @FunctionalInterface |
| public interface SynchronousBundleListener extends BundleListener { |
| // This is a marker interface |
| } |