Source for javax.xml.xpath.XPathExpression

   1: /* XPathExpression.java -- 
   2:    Copyright (C) 2004, 2005  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package javax.xml.xpath;
  39: 
  40: import javax.xml.namespace.QName;
  41: import org.xml.sax.InputSource;
  42: 
  43: /**
  44:  * An XPath expression.
  45:  *
  46:  * @author (a href='mailto:dog@gnu.org'>Chris Burdess</a)
  47:  * @since 1.3
  48:  */
  49: public interface XPathExpression
  50: {
  51: 
  52:   /**
  53:    * Evaluates this expression against the specified context.
  54:    * @param item the evaluation context
  55:    * @param returnType the desired return type
  56:    */
  57:   Object evaluate(Object item,
  58:                   QName returnType)
  59:     throws XPathExpressionException;
  60: 
  61:   /**
  62:    * Evaluates this expression against the specified context, returning the
  63:    * result as a string.
  64:    * @param item the evaluation context
  65:    */
  66:   String evaluate(Object item)
  67:     throws XPathExpressionException;
  68: 
  69:   /**
  70:    * Evaluates this expression against the specified context.
  71:    * @param source the source to load the context from
  72:    * @param returnType the desired return type
  73:    */
  74:   Object evaluate(InputSource source,
  75:                   QName returnType)
  76:     throws XPathExpressionException;
  77: 
  78:   /**
  79:    * Evaluates this expression against the specified context, returning the
  80:    * result as a string.
  81:    * @param source the source to load the context from
  82:    */
  83:   String evaluate(InputSource source)
  84:     throws XPathExpressionException;
  85: 
  86: }