java/alt2xml-out-xpath/src/cz/frantovo/alt2xml/out/xpath/CompoundVariableResolver.java
changeset 97 a72d55ff30c9
child 111 e4900596abdb
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/java/alt2xml-out-xpath/src/cz/frantovo/alt2xml/out/xpath/CompoundVariableResolver.java	Sun Sep 07 01:28:07 2014 +0200
     1.3 @@ -0,0 +1,45 @@
     1.4 +/**
     1.5 + * Alt2XML
     1.6 + * Copyright © 2014 František Kučera (frantovo.cz)
     1.7 + *
     1.8 + * This program is free software: you can redistribute it and/or modify
     1.9 + * it under the terms of the GNU General Public License as published by
    1.10 + * the Free Software Foundation, either version 3 of the License, or
    1.11 + * (at your option) any later version.
    1.12 + *
    1.13 + * This program is distributed in the hope that it will be useful,
    1.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    1.16 + * GNU General Public License for more details.
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License
    1.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
    1.20 + */
    1.21 +package cz.frantovo.alt2xml.out.xpath;
    1.22 +
    1.23 +import javax.xml.namespace.QName;
    1.24 +import javax.xml.xpath.XPathVariableResolver;
    1.25 +
    1.26 +/**
    1.27 + *
    1.28 + * @author Ing. František Kučera (frantovo.cz)
    1.29 + */
    1.30 +public class CompoundVariableResolver implements XPathVariableResolver {
    1.31 +
    1.32 +	private final XPathVariableResolver[] resolvers;
    1.33 +
    1.34 +	public CompoundVariableResolver(XPathVariableResolver... resolvers) {
    1.35 +		this.resolvers = resolvers;
    1.36 +	}
    1.37 +
    1.38 +	@Override
    1.39 +	public Object resolveVariable(QName variableName) {
    1.40 +		for (XPathVariableResolver r : resolvers) {
    1.41 +			Object value = r.resolveVariable(variableName);
    1.42 +			if (value != null) {
    1.43 +				return value;
    1.44 +			}
    1.45 +		}
    1.46 +		return null;
    1.47 +	}
    1.48 +}