/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 *
 * You can obtain a copy of the license at
 * https://jaxp.dev.java.net/CDDLv1.0.html.
 * See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * HEADER in each file and include the License file at
 * https://jaxp.dev.java.net/CDDLv1.0.html
 * If applicable add the following below this CDDL HEADER
 * with the fields enclosed by brackets "[]" replaced with
 * your own identifying information: Portions Copyright
 * [year] [name of copyright owner]
 */

/*
 * $Id: XMLEntityReader.java,v 1.3 2005/11/03 17:02:21 jeffsuttor Exp $
 * @(#)Templates.java	1.23 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
 */

package javax.xml.transform;

import java.util.Properties;




/**
 * An object that implements this interface is the runtime representation of processed
 * transformation instructions.
 *
 * <p>Templates must be threadsafe for a given instance
 * over multiple threads running concurrently, and may
 * be used multiple times in a given session.</p>
 */
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}.
     *
     * <p>The properties returned should contain properties set by the stylesheet,
     * and these properties are "defaulted" by default properties specified by
     * <a href="http://www.w3.org/TR/xslt#output">section 16 of the
     * XSL Transformations (XSLT) W3C Recommendation</a>.  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, <em>or</em> the default
     * properties, while
     * getOutputProperties().get(String key) will only retrieve properties
     * that were explicitly set in the stylesheet.</p>
     *
     * <p>For XSLT,
     * <a href="http://www.w3.org/TR/xslt#attribute-value-templates">Attribute
     * Value Templates</a> 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.</p>
     *
     * @return A Properties object, never null.
     */
    Properties getOutputProperties();
}