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  /*
   * $Id: TransformerHandler.java,v 1.6 2010-11-01 04:36:12 joehw Exp $
   * %W% %E%
   */
  package mf.javax.xml.transform.sax;
  
  import org.xml.sax.ContentHandler;
  import org.xml.sax.DTDHandler;
  import org.xml.sax.ext.LexicalHandler;
  
  import mf.javax.xml.transform.Result;
  import mf.javax.xml.transform.Transformer;
  
  /**
   * A TransformerHandler
   * listens for SAX ContentHandler parse events and transforms
   * them to a Result.
   */
  public interface TransformerHandler
          extends ContentHandler, LexicalHandler, DTDHandler {
  
      /**
       * <p>Set  the <code>Result</code> associated with this
       * <code>TransformerHandler</code> to be used for the transformation.</p>
       *
       * @param result A <code>Result</code> instance, should not be
       *               <code>null</code>.
       * @throws IllegalArgumentException if result is invalid for some reason.
       */
      void setResult(Result result) throws IllegalArgumentException;
  
      /**
       * Get the base ID (URI or system ID) from where relative
       * URLs will be resolved.
       *
       * @return The systemID that was set with {@link #setSystemId}.
       */
      String getSystemId();
  
      /**
       * Set the base ID (URI or system ID) from where relative
       * URLs will be resolved.
       *
       * @param systemID Base URI for the source tree.
       */
      void setSystemId(String systemID);
  
      /**
       * <p>Get the <code>Transformer</code> associated with this handler, which
       * is needed in order to set parameters and output properties.</p>
       *
       * @return <code>Transformer</code> associated with this
       * <code>TransformerHandler</code>.
       */
      Transformer getTransformer();
  }
  