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Jakarta Interceptors defines a means of interposing on business method invocations and specific events—such as lifecycle events and timeout events—that occur on instances of Jakarta EE components and other managed classes.

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/*
 * Copyright (c) 2013, 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 javax.interceptor;

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;

/**
 * Designates an interceptor method that receives a callback when the target class constructor is invoked.
 * 
 * 
 * The method to which the AroundConstruct annotation is applied must have one of the following signatures.
 * 
 *
 *  * void <METHOD>(InvocationContext ctx)
 *
 * Object <METHOD>(InvocationContext ctx)
 * 
 *
 * 
 * The method must not be declared as abstract, final, or static.
 * 
 *
 * 
 * An AroundConstruct interceptor method may be only declared in an interceptor class or superclass of an
 * interceptor class.
 * 
 *
 * 
 * An interceptor class must not declare more than one AroundConstruct method.
 * 
 *
 * 
 * The target instance is created and its constructor injection is performed, if applicable, when the last interceptor
 * method in the AroundConstruct interceptor chain invokes the
 * {@link javax.interceptor.InvocationContext#proceed()} method.
 *
 * 

 * An AroundConstruct interceptor method should exercise caution accessing the instance whose constructor it
 * interposes on.
 * 
 *
 * 
 * AroundConstruct methods may throw any exceptions that are allowed by the throws clause of the constructor on
 * which they are interposing.
 * 
 *
 * @since Jakarta Interceptors 1.2
 */
@Target(METHOD)
@Retention(RUNTIME)
public @interface AroundConstruct {
}