/*******************************************************************************
 * Copyright (c) 2007 IBM Corporation and Others
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Hisashi MIYASHITA - initial API and implementation
 *******************************************************************************/

package org.eclipse.actf.ai.query;

import org.eclipse.actf.ai.query.impl.QueryImpl;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

/**
 * This class has factory methods for creating query objects.
 */
public class QueryService {
	/**
	 * @param e
	 *            the element to be parsed.
	 * @param parentQuery
	 *            the parent query of the query will be parsed.
	 * @return new instance of query for "Fennec".
	 */
	public static IQuery parse(Element e, IQuery parentQuery) {
		return QueryImpl.parse(e, parentQuery);
	}

	/**
	 * @param xpath
	 *            the XPath to be used in the query.
	 * @return new instance of XPath query.
	 */
	public static IQuery createFromXPath(String xpath) {
		return QueryImpl.parseXPath(xpath);
	}

	/**
	 * @param domTarget
	 *            the target DOM node to be queried by the created query.
	 * @param usrParent
	 *            the parent node of the created query.
	 * @return new instance of query which returns the domTarget.
	 */
	public static Node serializeQuery(Node domTarget, Node usrParent) {
		return QueryImpl.serializeQuery(domTarget, usrParent);
	}
}