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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: Templates.java 570103 2007-08-27 13:24:55Z mrglavas $

package javax.xml.transform;

import java.util.Properties;

/**
 * An object that implements this interface is the runtime representation of processed
 * transformation instructions.
 *
 * Templates must be thread-safe for a given instance
 * over multiple threads running concurrently, and may
 * be used multiple times in a given session.
 */
public interface Templates {

    /**
     * Create a new transformation context for this Templates object.
     *
     * @return A valid non-null instance of a Transformer.
     *
     * @throws TransformerConfigurationException if a Transformer can not be created.
     */
    Transformer newTransformer() throws TransformerConfigurationException;

    /**
     * Get the properties corresponding to the effective xsl:output element.
     * The object returned will
     * be a clone of the internal values. Accordingly, it can be mutated
     * without mutating the Templates object, and then handed in to
     * {@link javax.xml.transform.Transformer#setOutputProperties}.
     *
     * The properties returned should contain properties set by the stylesheet,
     * and these properties are "defaulted" by default properties specified by
     * section 16 of the
     * XSL Transformations (XSLT) W3C Recommendation.  The properties that
     * were specifically set by the stylesheet should be in the base
     * Properties list, while the XSLT default properties that were not
     * specifically set should be in the "default" Properties list.  Thus,
     * getOutputProperties().getProperty(String key) will obtain any
     * property in that was set by the stylesheet, or the default
     * properties, while
     * getOutputProperties().get(String key) will only retrieve properties
     * that were explicitly set in the stylesheet.
     *
     * For XSLT,
     * Attribute
     * Value Templates attribute values will
     * be returned unexpanded (since there is no context at this point).  The
     * namespace prefixes inside Attribute Value Templates will be unexpanded,
     * so that they remain valid XPath values.
     *
     * @return A Properties object, never null.
     */
    Properties getOutputProperties();
}