XPathFunction provides access to XPath functions.
XPathFunction
Functions are identified by QName and arity in XPath.
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this.outBodyFunction = outBodyFunction; } public XPathFunction getOutHeaderFunction() { if (outHeaderFunction == null) { outHeaderFunction = new XPathFunction() { public Object evaluate(List list) throws XPathFunctionException { if (exchange.get() != null && !list.isEmpty()) { Object value = list.get(0); if (value != null) { String text = exchange.get().getContext().getTypeConverter().convertTo(String.class, value);