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Provides a basic XSLT 2.0 and XQuery 1.0 processor (W3C Recommendations, January 2007). Command line interfaces and implementations of several Java APIs (DOM, XPath, s9api) are also included.

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package net.sf.saxon.expr;
import net.sf.saxon.om.Item;
import net.sf.saxon.trans.XPathException;

/**
 * ItemMappingFunction is an interface that must be satisfied by an object passed to a
 * ItemMappingIterator. It represents an object which, given an Item, can return either
 * another Item, or null.
*/

public interface ItemMappingFunction {

    /**
    * Map one item to another item.
    * @param item The input item to be mapped.
    * @return either the output item, or null.
    */

    public Item map(Item item) throws XPathException;

}

//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
// you may not use this file except in compliance with the License. You may obtain a copy of the
// License at http://www.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is Michael H. Kay
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): none.
//