The HasControls.java Java example source code
/*
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* 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.
*
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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.
*<blockquote>
* 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>
*
* @author Rosanna Lee
* @author Scott Seligman
* @author Vincent Ryan
* @since 1.3
*
*/
public interface HasControls {
/**
* Retrieves an array of <tt>Controls from the object that
* implements this interface. It is null if there are no controls.
*
* @return A possibly null array of <tt>Control objects.
* @throws NamingException If cannot return controls due to an error.
*/
public Control[] getControls() throws NamingException;
}
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