Examples of client.net.sf.saxon.ce.trans.KeyManager.selectByKey()

Class client.net.sf.saxon.ce.trans.KeyManager

Examples of client.net.sf.saxon.ce.trans.KeyManager.selectByKey()

client.net.sf.saxon.ce.trans.KeyManager.selectByKey()
Get the nodes with a given key value @param keySet The set of key definitions identified by the key name used in the call to the key() function @param doc The source document in question @param soughtValue The required key value @param context The dynamic context, needed only the first time when the key is being built @return an iteration of the selected nodes, always in document order with no duplicates

        while (true) {
            Item it = iter.next();
            if (it == null) {
                return false;
            }
            SequenceIterator nodes = km.selectByKey(kds, doc, (AtomicValue)it, context);
            while (true) {
                NodeInfo n = (NodeInfo)nodes.next();
                if (n == null) {
                    break;
                }

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            final DocumentInfo document = doc;
            final KeyDefinitionSet keySet = selectedKeySet;
            MappingFunction map = new MappingFunction() {
                // Map a value to the sequence of nodes having that value as a key value
                public SequenceIterator map(Item item) throws XPathException {
                    return keyManager.selectByKey(
                            keySet, document, (AtomicValue)item, keyContext);
                }
            };


            SequenceIterator keys = argument[1].iterate(context);

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            try {
                AtomicValue keyValue = (AtomicValue)argument[1].evaluateItem(context);
                if (keyValue == null) {
                    return EmptyIterator.getInstance();
                }
                allResults = keyManager.selectByKey(selectedKeySet, doc, keyValue, context);
            } catch (XPathException e) {
                e.maybeSetLocation(getSourceLocator());
                throw e;
            }
        }

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