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An OSGi bundle for Saxon-HE
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2013 Saxonica Limited.
// 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.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.tree.linked;
import net.sf.saxon.pattern.NodeTest;
import net.sf.saxon.tree.iter.AxisIterator;
/**
* This axis cannot be requested directly in an XPath expression
* but is used when evaluating xsl:number. It is provided because
* taking the union of the two axes would be very inefficient
*/
final class PrecedingOrAncestorEnumeration extends TreeEnumeration {
public PrecedingOrAncestorEnumeration(NodeImpl node, NodeTest nodeTest) {
super(node, nodeTest);
advance();
}
protected void step() {
next = next.getPreviousInDocument();
}
/**
* Get another iterator over the same nodes
*/
/*@NotNull*/ public AxisIterator getAnother() {
return new PrecedingOrAncestorEnumeration(start, nodeTest);
}
}