/*
* Copyright (c) 2005, 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
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*/
/*
* ===========================================================================
*
* (C) Copyright IBM Corp. 2003 All Rights Reserved.
*
* ===========================================================================
*/
/*
* $Id: XMLObject.java,v 1.5 2005/05/10 16:03:48 mullan Exp $
*/
package javax.xml.crypto.dsig;
import java.util.List;
import javax.xml.crypto.XMLStructure;
/**
* A representation of the XML <code>Object</code> element as defined in
* the <a href="http://www.w3.org/TR/xmldsig-core/">
* W3C Recommendation for XML-Signature Syntax and Processing</a>.
* An <code>XMLObject</code> may contain any data and may include optional
* MIME type, ID, and encoding attributes. The XML Schema Definition is
* defined as:
*
* <pre><code>
* &lt;element name="Object" type="ds:ObjectType"/&gt;
* &lt;complexType name="ObjectType" mixed="true"&gt;
* &lt;sequence minOccurs="0" maxOccurs="unbounded"&gt;
* &lt;any namespace="##any" processContents="lax"/&gt;
* &lt;/sequence&gt;
* &lt;attribute name="Id" type="ID" use="optional"/&gt;
* &lt;attribute name="MimeType" type="string" use="optional"/&gt;
* &lt;attribute name="Encoding" type="anyURI" use="optional"/&gt;
* &lt;/complexType&gt;
* </code></pre>
*
* A <code>XMLObject</code> instance may be created by invoking the
* {@link XMLSignatureFactory#newXMLObject newXMLObject} method of the
* {@link XMLSignatureFactory} class; for example:
*
* <pre>
* XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM");
* List content = Collections.singletonList(fac.newManifest(references)));
* XMLObject object = factory.newXMLObject(content, "object-1", null, null);
* </pre>
*
* <p>Note that this class is named <code>XMLObject</code> rather than
* <code>Object</code> to avoid naming clashes with the existing
* {@link java.lang.Object java.lang.Object} class.
*
* @author Sean Mullan
* @author JSR 105 Expert Group
* @author Joyce L. Leung
* @since 1.6
* @see XMLSignatureFactory#newXMLObject(List, String, String, String)
*/
public interface XMLObject extends XMLStructure {
/**
* URI that identifies the <code>Object</code> element (this can be
* specified as the value of the <code>type</code> parameter of the
* {@link Reference} class to identify the referent's type).
*/
final static String TYPE = "http://www.w3.org/2000/09/xmldsig#Object";
/**
* Returns an {@link java.util.Collections#unmodifiableList unmodifiable
* list} of {@link XMLStructure}s contained in this <code>XMLObject</code>,
* which represent elements from any namespace.
*
*<p>If there is a public subclass representing the type of
* <code>XMLStructure</code>, it is returned as an instance of that class
* (ex: a <code>SignatureProperties</code> element would be returned
* as an instance of {@link javax.xml.crypto.dsig.SignatureProperties}).
*
* @return an unmodifiable list of <code>XMLStructure</code>s (may be empty
* but never <code>null</code>)
*/
List getContent();
/**
* Returns the Id of this <code>XMLObject</code>.
*
* @return the Id (or <code>null</code> if not specified)
*/
String getId();
/**
* Returns the mime type of this <code>XMLObject</code>. The
* mime type is an optional attribute which describes the data within this
* <code>XMLObject</code> (independent of its encoding).
*
* @return the mime type (or <code>null</code> if not specified)
*/
String getMimeType();
/**
* Returns the encoding URI of this <code>XMLObject</code>. The encoding
* URI identifies the method by which the object is encoded.
*
* @return the encoding URI (or <code>null</code> if not specified)
*/
String getEncoding();
}