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 * Copyright (c) 2000, 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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 */

package javax.xml.transform;

/**

 * Provides string constants that can be used to set

 * output properties for a Transformer, or to retrieve

 * output properties from a Transformer or Templates object.

 * <p>All the fields in this class are read-only.</p>

 *

 * @see <a href="http://www.w3.org/TR/xslt#output">

 *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

 * @since 1.4

 */

public class OutputKeys {

    /**

     * Default constructor is private on purpose.  This class is

     * only for static variable access, and should never be constructed.

     */

    private OutputKeys() { }

    /**

     * method = "xml" | "html" | "text" | <var>expanded name</var>.

     *

     * <p>The value of the method property identifies the overall method that

     * should be used for outputting the result tree.  Other non-namespaced

     * values may be used, such as "xhtml", but, if accepted, the handling

     * of such values is implementation defined.  If any of the method values

     * are not accepted and are not namespace qualified,

     * then {@link javax.xml.transform.Transformer#setOutputProperty}

     * or {@link javax.xml.transform.Transformer#setOutputProperties} will

     * throw a {@link java.lang.IllegalArgumentException}.</p>

     *

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String METHOD = "method";

    /**

     * version = <var>nmtoken</var>.

     *

     * <p><code>version</code> specifies the version of the output

     * method.</p>

     * <p>When the output method is "xml", the version value specifies the

     * version of XML to be used for outputting the result tree. The default

     * value for the xml output method is 1.0. When the output method is

     * "html", the version value indicates the version of the HTML.

     * The default value for the xml output method is 4.0, which specifies

     * that the result should be output as HTML conforming to the HTML 4.0

     * Recommendation [HTML].  If the output method is "text", the version

     * property is ignored.</p>

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String VERSION = "version";

    /**

     * encoding = <var>string</var>.

     *

     * <p><code>encoding</code> specifies the preferred character

     * encoding that the Transformer should use to encode sequences of

     * characters as sequences of bytes. The value of the encoding property should be

     * treated case-insensitively. The value must only contain characters in

     * the range #x21 to #x7E (i.e., printable ASCII characters). The value

     * should either be a <code>charset</code> registered with the Internet

     * Assigned Numbers Authority <a href="http://www.iana.org/">[IANA]</a>,

     * <a href="http://www.ietf.org/rfc/rfc2278.txt">[RFC2278]</a>

     * or start with <code>X-</code>.</p>

     * @see <a href="http://www.w3.org/TR/xslt#output">

     * section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String ENCODING = "encoding";

    /**

     * omit-xml-declaration = "yes" | "no".

     *

     * <p><code>omit-xml-declaration</code> specifies whether the XSLT

     * processor should output an XML declaration; the value must be

     * <code>yes</code> or <code>no</code>.</p>

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String OMIT_XML_DECLARATION = "omit-xml-declaration";

    /**

     * standalone = "yes" | "no".

     *

     * <p><code>standalone</code> specifies whether the Transformer

     * should output a standalone document declaration; the value must be

     * <code>yes</code> or <code>no</code>.</p>

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String STANDALONE = "standalone";

    /**

     * doctype-public = <var>string</var>.

     * <p>See the documentation for the {@link #DOCTYPE_SYSTEM} property

     * for a description of what the value of the key should be.</p>

     *

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String DOCTYPE_PUBLIC = "doctype-public";

    /**

     * doctype-system = <var>string</var>.

     * <p><code>doctype-system</code> specifies the system identifier

     * to be used in the document type declaration.</p>

     * <p>If the doctype-system property is specified, the xml output method

     * should output a document type declaration immediately before the first

     * element. The name following <!DOCTYPE should be the name of the first

     * element. If doctype-public property is also specified, then the xml

     * output method should output PUBLIC followed by the public identifier

     * and then the system identifier; otherwise, it should output SYSTEM

     * followed by the system identifier. The internal subset should be empty.

     * The value of the doctype-public property should be ignored unless the doctype-system

     * property is specified.</p>

     * <p>If the doctype-public or doctype-system properties are specified,

     * then the html output method should output a document type declaration

     * immediately before the first element. The name following <!DOCTYPE

     * should be HTML or html. If the doctype-public property is specified,

     * then the output method should output PUBLIC followed by the specified

     * public identifier; if the doctype-system property is also specified,

     * it should also output the specified system identifier following the

     * public identifier. If the doctype-system property is specified but

     * the doctype-public property is not specified, then the output method

     * should output SYSTEM followed by the specified system identifier.</p>

     *

     * <p><code>doctype-system</code> specifies the system identifier

     * to be used in the document type declaration.</p>

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String DOCTYPE_SYSTEM = "doctype-system";

    /**

     * cdata-section-elements = <var>expanded names</var>.

     *

     * <p><code>cdata-section-elements</code> specifies a whitespace delimited

     * list of the names of elements whose text node children should be output

     * using CDATA sections. Note that these names must use the format

     * described in the section Qualfied Name Representation in

     * {@link javax.xml.transform}.</p>

     *

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation.</a>

     */

    public static final String CDATA_SECTION_ELEMENTS =

        "cdata-section-elements";

    /**

     * indent = "yes" | "no".

     *

     * <p><code>indent</code> specifies whether the Transformer may

     * add additional whitespace when outputting the result tree; the value

     * must be <code>yes</code> or <code>no</code>.  </p>

     * @see <a href="http://www.w3.org/TR/xslt#output">

     *  section 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String INDENT = "indent";

    /**

     * media-type = <var>string</var>.

     *

     * <p><code>media-type</code> specifies the media type (MIME

     * content type) of the data that results from outputting the result

     * tree. The <code>charset</code> parameter should not be specified

     * explicitly; instead, when the top-level media type is

     * <code>text</code>, a <code>charset</code> parameter should be added

     * according to the character encoding actually used by the output

     * method.  </p>

     * @see <a href="http://www.w3.org/TR/xslt#output">s

     * ection 16 of the XSL Transformations (XSLT) W3C Recommendation</a>

     */

    public static final String MEDIA_TYPE = "media-type";

}