Scala example source code file (History.java)

This example Scala source code file (History.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

charsequence, charsequence, entry, entry, history, history, iterator, listiterator, listiterator, util

The Scala History.java source code

/*
 * Copyright (c) 2002-2007, Marc Prud'hommeaux. All rights reserved.
 *
 * This software is distributable under the BSD license. See the terms of the
 * BSD license in the documentation provided with this software.
 */

package scala.tools.jline.console.history;

import java.util.Iterator;
import java.util.ListIterator;

/**
 * Console history.
 *
 * @author <a href="mailto:mwp1@cornell.edu">Marc Prud'hommeaux
 * @author <a href="mailto:jason@planet57.com">Jason Dillon
 * @since 2.3
 */
public interface History
    extends Iterable<History.Entry>
{
    int size();

    boolean isEmpty();

    int index();

    void clear();

    CharSequence get(int index);

    void add(CharSequence line);

    void replace(CharSequence item);

    //
    // Entries
    //
    
    interface Entry
    {
        int index();

        CharSequence value();
    }

    ListIterator<Entry> entries(int index);

    ListIterator<Entry> entries();

    Iterator<Entry> iterator();

    //
    // Navigation
    //

    CharSequence current();

    boolean previous();

    boolean next();

    boolean moveToFirst();

    boolean moveToLast();

    boolean moveTo(int index);

    void moveToEnd();
}