/*
* 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.
*
* <p>Templates must be thread-safe 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();
}