/*

 * 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;

/**

 * <p>An object that implements this interface contains the information

 * needed to build a transformation result tree.

 *

 * @author Jeff Suttor

 * @since 1.4

 */

public interface Result {

    /**

     * The name of the processing instruction that is sent if the

     * result tree disables output escaping.

     *

     * <p>Normally, result tree serialization escapes{@literal & and <} (and

     * possibly other characters) when outputting text nodes.

     * This ensures that the output is well-formed XML. However,

     * it is sometimes convenient to be able to produce output that is

     * almost, but not quite well-formed XML; for example,

     * the output may include ill-formed sections that will

     * be transformed into well-formed XML by a subsequent non-XML aware

     * process. If a processing instruction is sent with this name,

     * serialization should be output without any escaping.

     *

     * <p>Result DOM trees may also have PI_DISABLE_OUTPUT_ESCAPING and

     * PI_ENABLE_OUTPUT_ESCAPING inserted into the tree.

     *

     * @see <a href="http://www.w3.org/TR/xslt#disable-output-escaping">disable-output-escaping in XSLT Specification</a>

     */

    public static final String PI_DISABLE_OUTPUT_ESCAPING =

        "javax.xml.transform.disable-output-escaping";

    /**

     * The name of the processing instruction that is sent

     * if the result tree enables output escaping at some point after having

     * received a PI_DISABLE_OUTPUT_ESCAPING processing instruction.

     *

     * @see <a href="http://www.w3.org/TR/xslt#disable-output-escaping">disable-output-escaping in XSLT Specification</a>

     */

    public static final String PI_ENABLE_OUTPUT_ESCAPING =

        "javax.xml.transform.enable-output-escaping";

    /**

     * Set the system identifier for this Result.

     *

     * <p>If the Result is not to be written to a file, the system identifier is optional.

     * The application may still want to provide one, however, for use in error messages

     * and warnings, or to resolve relative output identifiers.

     *

     * @param systemId The system identifier as a URI string.

     */

    public void setSystemId(String systemId);

    /**

     * Get the system identifier that was set with setSystemId.

     *

     * @return The system identifier that was set with setSystemId,

     * or null if setSystemId was not called.

     */

    public String getSystemId();

}