| /* |
| * Copyright (c) OSGi Alliance (2001, 2010). 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; |
| |
| /** |
| * 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} 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 |
| * @version $Id: b22484f48ebdcb2141da9bba9eb65f5c40e0f520 $ |
| */ |
| |
| public interface SynchronousBundleListener extends BundleListener { |
| // This is a marker interface |
| } |
