package client.net.sf.saxon.ce.functions;
import client.net.sf.saxon.ce.expr.StaticProperty;
import client.net.sf.saxon.ce.expr.XPathContext;
import client.net.sf.saxon.ce.expr.sort.GroupIterator;
import client.net.sf.saxon.ce.om.Item;
import client.net.sf.saxon.ce.trans.XPathException;
/**
* Implements the XSLT function current-grouping-key()
*/
public class CurrentGroupingKey extends SystemFunction {
public CurrentGroupingKey newInstance() {
return new CurrentGroupingKey();
}
/**
* Determine the dependencies
*/
public int getIntrinsicDependencies() {
return StaticProperty.DEPENDS_ON_CURRENT_GROUP;
}
/**
* Evaluate the expression
*/
public Item evaluateItem(XPathContext c) throws XPathException {
GroupIterator gi = c.getCurrentGroupIterator();
if (gi==null) {
return null;
}
return gi.getCurrentGroupingKey();
}
}
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is “Incompatible With Secondary Licenses”, as defined by the Mozilla Public License, v. 2.0.