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Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

//  $Id: Result.java 446598 2006-09-15 12:55:40Z jeremias $

package javax.xml.transform;

/**
 * An object that implements this interface contains the information
 * needed to build a transformation result tree.
 * 
 * @author Jeff Suttor
 */
public interface Result {

    /**
     * The name of the processing instruction that is sent if the
     * result tree disables output escaping.
     *
     * Normally, result tree serialization escapes & 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. 
     *
     * Result DOM trees may also have PI_DISABLE_OUTPUT_ESCAPING and
     * PI_ENABLE_OUTPUT_ESCAPING inserted into the tree.
     *
     * @see disable-output-escaping in XSLT Specification
     */
    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 disable-output-escaping in XSLT Specification
     */
    public static final String PI_ENABLE_OUTPUT_ESCAPING =
        "javax.xml.transform.enable-output-escaping";

    /**
     * Set the system identifier for this Result.
     *
     * 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();
}