001/*
002 * Copyright (c) 2004 World Wide Web Consortium,
003 *
004 * (Massachusetts Institute of Technology, European Research Consortium for
005 * Informatics and Mathematics, Keio University). All Rights Reserved. This
006 * work is distributed under the W3C(r) Software License [1] in the hope that
007 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
008 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
009 *
010 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
011 */
012
013package org.w3c.dom.ls;
014
015/**
016 *  This interface represents an output destination for data. 
017 * <p> This interface allows an application to encapsulate information about 
018 * an output destination in a single object, which may include a URI, a byte 
019 * stream (possibly with a specified encoding), a base URI, and/or a 
020 * character stream. 
021 * <p> The exact definitions of a byte stream and a character stream are 
022 * binding dependent. 
023 * <p> The application is expected to provide objects that implement this 
024 * interface whenever such objects are needed. The application can either 
025 * provide its own objects that implement this interface, or it can use the 
026 * generic factory method <code>DOMImplementationLS.createLSOutput()</code> 
027 * to create objects that implement this interface. 
028 * <p> The <code>LSSerializer</code> will use the <code>LSOutput</code> object 
029 * to determine where to serialize the output to. The 
030 * <code>LSSerializer</code> will look at the different outputs specified in 
031 * the <code>LSOutput</code> in the following order to know which one to 
032 * output to, the first one that is not null and not an empty string will be 
033 * used: 
034 * <ol>
035 * <li> <code>LSOutput.characterStream</code> 
036 * </li>
037 * <li> 
038 * <code>LSOutput.byteStream</code> 
039 * </li>
040 * <li> <code>LSOutput.systemId</code> 
041 * </li>
042 * </ol> 
043 * <p> <code>LSOutput</code> objects belong to the application. The DOM 
044 * implementation will never modify them (though it may make copies and 
045 * modify the copies, if necessary). 
046 * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407'>Document Object Model (DOM) Level 3 Load
047and Save Specification</a>.
048 */
049public interface LSOutput {
050    /**
051     *  An attribute of a language and binding dependent type that represents 
052     * a writable stream to which 16-bit units can be output. 
053     */
054    public java.io.Writer getCharacterStream();
055    /**
056     *  An attribute of a language and binding dependent type that represents 
057     * a writable stream to which 16-bit units can be output. 
058     */
059    public void setCharacterStream(java.io.Writer characterStream);
060
061    /**
062     *  An attribute of a language and binding dependent type that represents 
063     * a writable stream of bytes. 
064     */
065    public java.io.OutputStream getByteStream();
066    /**
067     *  An attribute of a language and binding dependent type that represents 
068     * a writable stream of bytes. 
069     */
070    public void setByteStream(java.io.OutputStream byteStream);
071
072    /**
073     *  The system identifier, a URI reference [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>], for this 
074     * output destination. 
075     * <br> If the system ID is a relative URI reference (see section 5 in [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>]), the 
076     * behavior is implementation dependent. 
077     */
078    public String getSystemId();
079    /**
080     *  The system identifier, a URI reference [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>], for this 
081     * output destination. 
082     * <br> If the system ID is a relative URI reference (see section 5 in [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>]), the 
083     * behavior is implementation dependent. 
084     */
085    public void setSystemId(String systemId);
086
087    /**
088     *  The character encoding to use for the output. The encoding must be a 
089     * string acceptable for an XML encoding declaration ([<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>] section 
090     * 4.3.3 "Character Encoding in Entities"), it is recommended that 
091     * character encodings registered (as charsets) with the Internet 
092     * Assigned Numbers Authority [<a href='ftp://ftp.isi.edu/in-notes/iana/assignments/character-sets'>IANA-CHARSETS</a>]
093     *  should be referred to using their registered names. 
094     */
095    public String getEncoding();
096    /**
097     *  The character encoding to use for the output. The encoding must be a 
098     * string acceptable for an XML encoding declaration ([<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>] section 
099     * 4.3.3 "Character Encoding in Entities"), it is recommended that 
100     * character encodings registered (as charsets) with the Internet 
101     * Assigned Numbers Authority [<a href='ftp://ftp.isi.edu/in-notes/iana/assignments/character-sets'>IANA-CHARSETS</a>]
102     *  should be referred to using their registered names. 
103     */
104    public void setEncoding(String encoding);
105
106}