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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.style;
import net.sf.saxon.expr.Expression;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.type.ItemType;
/**
* An xsl:sort element in the stylesheet.
*/
public class XSLSort extends XSLSortOrMergeKey {
public void validate(Declaration decl) throws XPathException {
super.validate(decl);
stable = typeCheck("stable", stable);
sortKeyDefinition.setStable(stable);
}
/**
* Determine the type of item returned by this instruction (only relevant if
* it is an instruction). Default implementation returns Type.ITEM, indicating
* that we don't know, it might be anything. Returns null in the case of an element
* such as xsl:sort or xsl:variable that can appear in a sequence constructor but
* contributes nothing to the result sequence.
* @return the item type returned
*/
/*@Nullable*/ protected ItemType getReturnedItemType() {
return null;
}
public Expression getStable() {
return stable;
}
}