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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2016 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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.wildfly.discovery;

import java.time.Instant;

import org.wildfly.common.Assert;

/**
 * A service registration handle, which can be used to remove a previously registered service.
 *
 * @author David M. Lloyd
 */
public interface ServiceRegistration extends AutoCloseable {

    /**
     * Close and remove this registration immediately.
     */
    void close();

    /**
     * Invalidate this registration immediately (possibly temporarily) without closing it.
     */
    void deactivate();

    /**
     * Re-activate this registration immediately and indefinitely.
     */
    void activate();

    /**
     * Hint to this registration that deactivation of the service is likely at the given time.
     *
     * @param instant the time at which deactivation is likely (must not be {@code null})
     */
    default void hintDeactivateAt(Instant instant) {
        Assert.checkNotNullParam("instant", instant);
    }

    /**
     * Create an aggregate of registrations which are all controlled as one.
     *
     * @param registrations the registrations to control
     * @return the aggregated handle
     */
    static ServiceRegistration aggregate(ServiceRegistration... registrations) {
        return new AggregateServiceRegistration(registrations);
    }

    /**
     * An empty service registration handle, which has no effect.
     */
    ServiceRegistration EMPTY = new ServiceRegistration() {
        public void close() {
        }

        public void deactivate() {
        }

        public void activate() {
        }

        public String toString() {
            return "Empty service registration handle";
        }
    };
}




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