contextlistimpl.java

java1.6众多例子参考

/*
 * @(#)ContextListImpl.java	1.27 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Licensed Materials - Property of IBM
 * RMI-IIOP v1.0
 * Copyright IBM Corp. 1998 1999  All Rights Reserved
 *
 * US Government Users Restricted Rights - Use, duplication or
 * disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

package com.sun.corba.se.impl.corba;

import java.util.Vector;
import org.omg.CORBA.ContextList;
import org.omg.CORBA.Bounds;
import org.omg.CORBA.ORB;

public class ContextListImpl extends ContextList 
{
    private final int	 INITIAL_CAPACITY	= 2;
    private final int	 CAPACITY_INCREMENT	= 2;

    private org.omg.CORBA.ORB _orb;
    private Vector _contexts;

    public ContextListImpl(org.omg.CORBA.ORB orb) 
    {
        // Note: This orb could be an instanceof ORBSingleton or ORB
        _orb = orb;
        _contexts = new Vector(INITIAL_CAPACITY, CAPACITY_INCREMENT);
    }

    public int count() 
    {
        return _contexts.size();
    }

    public void add(String ctxt)
    {
        _contexts.addElement(ctxt);
    }

    public String item(int index)
        throws Bounds
    {
        try {
            return (String) _contexts.elementAt(index);
        } catch (ArrayIndexOutOfBoundsException e) {
            throw new Bounds();
        }
    }

    public void remove(int index)
        throws Bounds
    {
        try {
            _contexts.removeElementAt(index);
        } catch (ArrayIndexOutOfBoundsException e) {
            throw new Bounds();
        }
    }

}