1 /*

     2  * Copyright (c) 2002-2016, the original author or authors.

     3  *

     4  * This software is distributable under the BSD license. See the terms of the

     5  * BSD license in the documentation provided with this software.

     6  *

     7  * http://www.opensource.org/licenses/bsd-license.php

     8  */

     9 package jdk.internal.jline.console.history;

    10 

    11 import java.io.IOException;

    12 

    13 /**

    14  * Persistent {@link History}.

    15  *

    16  * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>

    17  * @since 2.3

    18  */

    19 public interface PersistentHistory

    20     extends History

    21 {

    22     /**

    23      * Flush all items to persistent storage.

    24      *

    25      * @throws IOException  Flush failed

    26      */

    27     void flush() throws IOException;

    28 

    29     /**

    30      * Purge persistent storage and {@link #clear}.

    31      *

    32      * @throws IOException  Purge failed

    33      */

    34     void purge() throws IOException;

    35 }