    001    /*****************************************************************************
    002     * Copyright (c) PicoContainer Organization. All rights reserved.            *
    003     * ------------------------------------------------------------------------- *
    004     * The software in this package is published under the terms of the BSD      *
    005     * style license a copy of which has been included with this distribution in *
    006     * the license.html file.                                                    *
    007     *                                                                           *
    008     * Idea by Rachel Davies, Original code by Aslak Hellesoy and Paul Hammant   *
    009     *****************************************************************************/
    010
    011    package org.picocontainer;
    012
    013    /**
    014     * <p>An interface which is implemented by components that can be started and stopped. The {@link Startable#start()}
    015     * must be called at the begin of the component lifecycle. It can be called again only after a call to
    016     * {@link Startable#stop()}. The {@link Startable#stop()} method must be called at the end of the component lifecycle,
    017     * and can further be called after every {@link Startable#start()}. If a component implements the {@link Disposable}
    018     * interface as well, {@link Startable#stop()} should be called before {@link Disposable#dispose()}.</p>
    019     * <p/>
    020     * <p>For more advanced and pluggable lifecycle support, see the functionality offered by picocontainer-gems
    021     * subproject.</p>
    022     * @see org.picocontainer.Disposable the Disposable interface if you need to <code>dispose()</code> semantics.
    023     * @author Paul Hammant
    024     * @author Aslak Helles&oslash;y
    025     */
    026    public interface Startable {
    027        /**
    028         * Start this component. Called initially at the begin of the lifecycle. It can be called again after a stop.
    029         */
    030        void start();
    031
    032        /**
    033         * Stop this component. Called near the end of the lifecycle. It can be called again after a further start. Implement
    034         * {@link Disposable} if you need a single call at the definite end of the lifecycle.
    035         */
    036        void stop();
    037    }