/**

  * Alt2XML

  * Copyright © 2014 František Kučera (frantovo.cz)

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, version 3 of the License.

  *

  * This program 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 General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. If not, see <http://www.gnu.org/licenses/>.

  */

 package cz.frantovo.alt2xml.out.xpath;

 import javax.xml.namespace.QName;

 import javax.xml.xpath.XPathVariableResolver;

 /**

  *

  * @author Ing. František Kučera (frantovo.cz)

  */

 public class CompoundVariableResolver implements XPathVariableResolver {

 	private final XPathVariableResolver[] resolvers;

 	public CompoundVariableResolver(XPathVariableResolver... resolvers) {

 		this.resolvers = resolvers;

 	}

 	@Override

 	public Object resolveVariable(QName variableName) {

 		for (XPathVariableResolver r : resolvers) {

 			Object value = r.resolveVariable(variableName);

 			if (value != null) {

 				return value;

 			}

 		}

 		return null;

 	}

 }