org.glassfish.hk2.api.InstantiationService Maven / Gradle / Ivy
/*
* Copyright (c) 2015, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.hk2.api;
import org.jvnet.hk2.annotations.Contract;
/**
* This service is used to get information about
* the creation of a service from an
* implementation of {@link Factory}. The
* system creates this service, and while
* it can be injected into any service or
* even looked up, it only has data
* when called from inside the {@link Factory#provide()}
* method of a {@link Factory}.
*
* @author jwells
*
*/
@Contract
public interface InstantiationService {
/**
* This method may be called from inside the
* implementation of {@link Factory#provide()}
* method to get more information about the
* reason for instantiation. If this method
* is called outside the scope of a
* {@link Factory#provide()} method the results
* are indeterminate
*
* @return A non-null InstantiationData object
* containing information about the caller of
* the {@link Factory#provide()} method. May
* return null if no information is known or
* if called from outside of a {@link Factory#provide()}
* method
*/
public InstantiationData getInstantiationData();
}