/*
 * Reference ETL Parser for Java
 * Copyright (c) 2000-2009 Constantine A Plotnikov
 *
 * Permission is hereby granted, free of charge, to any person 
 * obtaining a copy of this software and associated documentation 
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, 
 * publish, distribute, sublicense, and/or sell copies of the Software, 
 * and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be 
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
 * SOFTWARE. 
 */
package net.sf.etl.parsers.internal.term_parser.grammar;

import java.lang.reflect.Field;

import net.sf.etl.parsers.StandardGrammars;
import net.sf.etl.parsers.TermParser;
import net.sf.etl.parsers.TermToken;
import net.sf.etl.parsers.beans.FieldTermParser;

/**
 * An AST parser that is used by lightweight grammar model
 * 
 * @author const
 */
public class GrammarLiteTermParser extends FieldTermParser<Element> {

	/**
	 * A constructor
	 * 
	 * @param parser
	 *            an underlying parser
	 */
	public GrammarLiteTermParser(TermParser parser) {
		super(parser, Element.class.getClassLoader());
		mapNamespaceToPackage(StandardGrammars.ETL_GRAMMAR_NAMESPACE,
				"net.sf.etl.parsers.internal.term_parser.grammar");
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void valueEnlisted(Element rc, Field f, Object v) {
		if (v instanceof Element) {
			Element e = (Element) v;
			e.ownerObject = rc;
			e.ownerFeature = f;
		}
		super.valueEnlisted(rc, f, v);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected Object setObjectStartPos(Element rc, Class<?> metaObject,
			TermToken token) {
		rc.start = token.start();
		return rc.start;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void setObjectEndPos(Element rc, Class<?> metaObject,
			Object starValue, TermToken token) {
		rc.end = token.start();
	}
}