/**
* Diagnostic method: display a representation of the compiled query on the selected output
* stream.
*
* @param out an ExpressionPresenter to which the XML representation of the compiled query will be
* sent
*/
public void explain(ExpressionPresenter out) {
out.startElement("query");
staticContext.getExecutable().getKeyManager().explainKeys(out);
staticContext.getExecutable().explainGlobalVariables(out);
staticContext.explainGlobalFunctions(out);
out.startElement("body");
expression.explain(out);
out.endElement();
out.endElement();
out.close();
}
