/* URIResolver.java -- 
   Copyright (C) 2004, 2005  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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permission to link this library with independent modules to produce an
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package javax.xml.transform;

/**
 * Callback that can resolve a URI into source XML for transformation.
 * Equivalent to the SAX EntityResolver.
 * 
 * @author (a href='mailto:dog@gnu.org'>Chris Burdess</a)
 */
public interface URIResolver
{

  /**
   * Resolves an <code>xsl:include</code>, <code>xsl:import</code>, or
   * XPath <code>document()</code> function.
   * @param href the URI to resolve (relative or absolute)
   * @param base the base URI relative to which the URI is to be resolved
   * @return a source, or null if the resource could not be found
   */
  public Source resolve(String href, String base)
    throws TransformerException;

}