/*
 * Copyright 2005 The Apache Software Foundation.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
/*
 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
 */
/*
 * $Id: KeyName.java 375655 2006-02-07 18:35:54Z mullan $
 */
package javax.xml.crypto.dsig.keyinfo;

import javax.xml.crypto.XMLStructure;

/**
 * A representation of the XML <code>KeyName</code> element as 
 * defined in the <a href="http://www.w3.org/TR/xmldsig-core/">
 * W3C Recommendation for XML-Signature Syntax and Processing</a>.
 * A <code>KeyName</code> object contains a string value which may be used
 * by the signer to communicate a key identifier to the recipient. The
 * XML Schema Definition is defined as:
 *
 * <pre>
 * &lt;element name="KeyName" type="string"/&gt;
 * </pre>
 * 
 * A <code>KeyName</code> instance may be created by invoking the
 * {@link KeyInfoFactory#newKeyName newKeyName} method of the
 * {@link KeyInfoFactory} class, and passing it a <code>String</code> 
 * representing the name of the key; for example:
 * <pre>
 * KeyInfoFactory factory = KeyInfoFactory.getInstance("DOM");
 * KeyName keyName = factory.newKeyName("Alice");   
 * </pre>
 *
 * @author Sean Mullan
 * @author JSR 105 Expert Group
 * @see KeyInfoFactory#newKeyName(String)
 */
public interface KeyName extends XMLStructure {

    /**
     * Returns the name of this <code>KeyName</code>.
     *
     * @return the name of this <code>KeyName</code> (never 
     *    <code>null</code>)
     */
    String getName();
}