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 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * 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

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package com.sun.org.apache.xpath.internal;

import javax.xml.transform.TransformerException;

import org.w3c.dom.Element;

/**

 * A class that implements this interface can tell if a given element should

 * strip whitespace nodes from it's children.

 */

public interface WhitespaceStrippingElementMatcher

{

  /**

   * Get information about whether or not an element should strip whitespace.

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

   *

   * @param support The XPath runtime state.

   * @param targetElement Element to check

   *

   * @return true if the whitespace should be stripped.

   *

   * @throws TransformerException

   */

  public boolean shouldStripWhiteSpace(

          XPathContext support, Element targetElement) throws TransformerException;

  /**

   * Get information about whether or not whitespace can be stripped.

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

   *

   * @return true if the whitespace can be stripped.

   */

  public boolean canStripWhiteSpace();

}