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Problem with Tracing XPathExpressions ยป Test.java

Farid Ghanbari, 2019-03-23 18:50

 
void test() throws Exception {
String xpath = "declare variable $a as item() external; $a/x/text()";
Configuration config = Configuration.newConfiguration();
config.setCompileWithTracing(true);
Processor processor = new Processor(config);
XQueryCompiler xqueryCompiler = processor.newXQueryCompiler();
xqueryCompiler.setEncoding("UTF-8");
xqueryCompiler.getUnderlyingStaticContext()
.setCodeInjector(new CodeInjector() {
@Override
public Clause injectClause(Clause target, StaticContext env) {
System.out.println(target);
return target;
}
@Override
public Expression inject(Expression exp, StaticContext env, int construct, StructuredQName qName) {
System.out.println(exp);
return exp;
}
});
XQueryExecutable xqueryExecutable = xqueryCompiler.compile(xpath);
XQueryEvaluator evaluator = xqueryExecutable.load();
Source source = new StreamSource(new StringReader("<a><x>A</x></a>"));
net.sf.saxon.s9api.DocumentBuilder documentBuilder = processor.newDocumentBuilder();
XdmNode document = documentBuilder.build(source);
evaluator.setExternalVariable(new QName("a"), document.children().iterator().next());
System.out.println(evaluator.evaluateSingle());
}
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