/*
 * Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package javax.naming.ldap;

import javax.naming.NamingException;

This interface is for returning controls with objects returned in NamingEnumerations. For example, suppose a server sends back controls with the results of a search operation, the service provider would return a NamingEnumeration of objects that are both SearchResult and implement HasControls.
  NamingEnumeration elts = ectx.search((Name)name, filter, sctls);
  while (elts.hasMore()) {
    Object entry = elts.next();
    // Get search result
    SearchResult res = (SearchResult)entry;
    // do something with it
    // Get entry controls
    if (entry instanceof HasControls) {
        Control[] entryCtls = ((HasControls)entry).getControls();
        // do something with controls
    }
  }
Author:Rosanna Lee, Scott Seligman, Vincent Ryan
Since:1.3
/** * This interface is for returning controls with objects returned * in NamingEnumerations. * For example, suppose a server sends back controls with the results * of a search operation, the service provider would return a NamingEnumeration of * objects that are both SearchResult and implement HasControls. *<blockquote><pre> * NamingEnumeration elts = ectx.search((Name)name, filter, sctls); * while (elts.hasMore()) { * Object entry = elts.next(); * * // Get search result * SearchResult res = (SearchResult)entry; * // do something with it * * // Get entry controls * if (entry instanceof HasControls) { * Control[] entryCtls = ((HasControls)entry).getControls(); * // do something with controls * } * } *</pre></blockquote> * * @author Rosanna Lee * @author Scott Seligman * @author Vincent Ryan * @since 1.3 * */
public interface HasControls {
Retrieves an array of Controls from the object that implements this interface. It is null if there are no controls.
Throws:
Returns:A possibly null array of Control objects.
/** * Retrieves an array of <tt>Control</tt>s from the object that * implements this interface. It is null if there are no controls. * * @return A possibly null array of <tt>Control</tt> objects. * @throws NamingException If cannot return controls due to an error. */
public Control[] getControls() throws NamingException; }