xmladapter4jfunctions.java

来自「Mandarax是一个规则引擎的纯Java实现。它支持多类型的事实和基于反映的规」· Java 代码 · 共 85 行

package org.mandarax.xkb.framework;

/**
 *  Copyright (C) 1999-2004  Jens Dietrich (mailto:[e-mail])
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

import java.lang.reflect.Method;
import java.util.Map;

import org.jdom.Element;
import org.mandarax.kernel.LogicFactory;
import org.mandarax.kernel.meta.JFunction;
import org.mandarax.xkb.XKBException;
/**
 * An adapter class for JFunctions.
 * @see org.mandarax.kernel.meta.JFunction
 * @author <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</A>
 * @version 3.4 <7 March 05>
 * @since 1.6 
 * @deprecated from v 3.4 - support for new features such as validation will not be added to XKB, please use ZKB instead
 */
public class XMLAdapter4JFunctions extends AbstractXMLAdapter {
      public static final String JFUNCTION = "jfunction";
      public static final String NAME = "name";

/**
 * Export an object, i.e., convert it to an element in the DOM.
 * @param obj an object
 * @param driver the generic driver
 * @param cache a cache used in order to associate the same
 * id with various occurences of the same object
 * @exception an XKBException is thrown if export fails
 */
public Element exportObject(Object obj,GenericDriver driver,Map cache) throws  XKBException {
      check(obj,org.mandarax.kernel.meta.JFunction.class);
      JFunction f = (JFunction)obj;
      Element e = new Element(JFUNCTION);
      e.setAttribute(NAME,f.getName());
      Element eMethod = this.exportObject(f.getMethod(),GenericDriver.METHOD,driver,cache);
      e.addContent(eMethod);
      return e;
}
/**
 * Build an object from an XML element.
 * @param e an element
 * @param driver the generic driver
 * @param cache a cache used to identify objects that have the same id
 * @param lfactory the logic factory used to create objects
 * @exception an XKBException is thrown if export fails
 */
public Object importObject(Element e,GenericDriver driver,Map cache,LogicFactory lfactory) throws XKBException {
       String name = e.getAttributeValue(NAME);
       Method method = (Method)importChild(e,GenericDriver.METHOD,driver,cache,lfactory);
       return new JFunction(method,name);
}
/**
 * Get the name of the associated tag (element).
 * @return a string
 */
public String getTagName() {
      return JFUNCTION;
}
/**
 * Get the kind of object the adapter can export/import.
 * @return a string
 */
public String getKindOfObject() {
      return GenericDriver.JFUNCTION;
}
}