Examples of net.sf.saxon.sxpath.XPathExpression.iterate()

Class net.sf.saxon.sxpath.XPathExpression

Examples of net.sf.saxon.sxpath.XPathExpression.iterate()

net.sf.saxon.sxpath.XPathExpression.iterate()
Execute the expression, returning the result as a {@link SequenceIterator}, whose members will be instances of the class {@link net.sf.saxon.om.Item}
Note that if evaluation of the expression fails with a dynamic error, this will generally be reported in the form of an exception thrown by the next() method of the {@link SequenceIterator} @param context the XPath dynamic context @return an iterator over the result of the expression

        tuple.add(rowCount);
      } else {
        try {
          XPathExpression path = proColumn.getPathExpression();
          XPathDynamicContext dynamicContext = path.createDynamicContext(item);
          SequenceIterator pathIter = path.iterate(dynamicContext);
          Item colItem = pathIter.next();
          if (colItem == null) {
            if (proColumn.getDefaultExpression() != null) {
              tuple.add(getEvaluator(Collections.emptyMap()).evaluate(proColumn.getDefaultExpression(), null));
            } else {

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            } else if (argname.startsWith("?")) {
                // parameters starting with "?" are taken as XPath expressions
                XPathEvaluator xpe = new XPathEvaluator(getConfiguration());
                XPathExpression expr = xpe.createExpression(argvalue);
                XPathDynamicContext context = expr.createDynamicContext(null);
                ValueRepresentation val = SequenceExtent.makeSequenceExtent(expr.iterate(context));
                dynamicEnv.setParameter(argname.substring(1), val);                
            } else {
                dynamicEnv.setParameter(argname, new UntypedAtomicValue(argvalue));
            }
        }

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            } else if (argname.startsWith("?")) {
                // parameters starting with "?" are taken as XPath expressions
                XPathEvaluator xpe = new XPathEvaluator(controller.getConfiguration());
                XPathExpression expr = xpe.createExpression(argvalue);
                XPathDynamicContext context = expr.createDynamicContext(null);
                ValueRepresentation val = SequenceExtent.makeSequenceExtent(expr.iterate(context));
                controller.setParameter(argname.substring(1), val);
            } else {
                controller.setParameter(argname, new UntypedAtomicValue(argvalue));
            }
        }

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                xc.setCurrentIterator(xsi);


                // Then evaluate the expression by calling iterate() on the
                // net.sf.saxon.sxpath.XPathExpression object.


                SequenceIterator<?> results = xexpr.iterate(xdc);
                item = results.next();


                if (item == null) {
                    throw new XProcException(step.getNode(), "The group-adjacent expression returned nothing.");
                }

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                xc.setCurrentIterator(xsi);


                // Then evaluate the expression by calling iterate() on the
                // net.sf.saxon.sxpath.XPathExpression object.


                SequenceIterator<?> results = xexpr.iterate(xdc);
                // FIXME: What if the expression returns a sequence?
                item = results.next();
            } catch (XPathException xe) {
                throw new XProcException(xe);
            }

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