Examples of net.sf.saxon.query.QueryProcessor

net.sf.saxon.query.QueryProcessor
A QueryProcessor allows the compilation of XQuery queries for subsequent execution. Compilation consists of parsing, static analysis, optimization, and creation of an internal representation of the query for subsequent evaluation.
The compilation of a query takes context information from a static context, which is represented by a StaticQueryContext object. This provides the necessary information about collations, base URI, etc.

This class is retained for backwards compatibility, but there is no longer any need for applications to use it directly, since all its methods are available directly from the StaticQueryContext object.
@deprecated since Saxon 8.1: use methods on the StaticQueryContext directly

                    " or the empty string.",
                    YVerificationMessage.ERROR_STATUS));
        } else {
            Configuration configuration = new Configuration();
            StaticQueryContext staticQueryContext = new StaticQueryContext();
            QueryProcessor qp = new QueryProcessor(configuration, staticQueryContext);
            try {
                qp.compileQuery(xQuery);
            } catch (XPathException e) {
                messages.add(new YVerificationMessage(this, this +
                        "(id= " + this.getID() + ") the XQuery could not be successfully" +
                        " parsed. [" + e.getMessage() + "]",
                        YVerificationMessage.ERROR_STATUS));

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            //JDOM code for produce string for reading by SAXON
            XMLOutputter outputter = new XMLOutputter();
            //SAXON XQuery code
            Configuration configuration = new Configuration();
            StaticQueryContext staticQueryContext = new StaticQueryContext();
            QueryProcessor qp = new QueryProcessor(configuration, staticQueryContext);
            XQueryExpression xQueryExpression = qp.compileQuery(query);
            //if SAXON worked with JDOM directly we could replace the next with:
            ///DocumentInfo saxonDocInfo = qp.buildDocument(new DocumentWrapper(_parentDecomposition.getInternalDataDocument(), null));
            DocumentInfo saxonDocInfo = qp.buildDocument(new StreamSource(
                    new StringReader(outputter.outputString(document))));
            DynamicQueryContext dynamicQueryContext = new DynamicQueryContext();
            dynamicQueryContext.setContextNode(saxonDocInfo);
            resultObj = xQueryExpression.evaluateSingle(dynamicQueryContext);
            NodeInfo nodeInfo = (NodeInfo) resultObj;

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            //JDOM code for produce string for reading by SAXON
            XMLOutputter outputter = new XMLOutputter();
            //SAXON XQuery code
            Configuration configuration = new Configuration();
            StaticQueryContext staticQueryContext = new StaticQueryContext();
            QueryProcessor qp = new QueryProcessor(configuration, staticQueryContext);
            XQueryExpression xQueryExpression = qp.compileQuery(query);
            //if SAXON worked with JDOM directly (like it claims to) we could replace the next with:
            ///DocumentInfo saxonDocInfo = qp.buildDocument(new DocumentWrapper(_parentDecomposition.getInternalDataDocument(), null));
            DocumentInfo saxonDocInfo = qp.buildDocument(new StreamSource(
                    new StringReader(outputter.outputString(element))));
            DynamicQueryContext dynamicQueryContext = new DynamicQueryContext();
            dynamicQueryContext.setContextNode(saxonDocInfo);
            List nodeList = xQueryExpression.evaluate(dynamicQueryContext);
            //my code to parse SAXON resulting XML tree and produce a string

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public class XPathSaxonUser {
    public static void main(String[] args) {


        net.sf.saxon.Configuration config = new Configuration();
        net.sf.saxon.query.StaticQueryContext context = new net.sf.saxon.query.StaticQueryContext();
        QueryProcessor qp = new QueryProcessor(config, context);
        try {
            XQueryExpression exp = qp.compileQuery("generate-id(/bye_mum/hi_there)");


            DocumentInfo doc = qp.buildDocument(new StreamSource(new StringReader(
                    "<bye_mum inf='h'><hi_there/></bye_mum>")));
            DynamicQueryContext dynamicQueryContext = new DynamicQueryContext();
            dynamicQueryContext.setContextNode(doc);
            Object o = exp.evaluateSingle(dynamicQueryContext);
System.out.println("o = " + o);

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Related Classes of net.sf.saxon.query.QueryProcessor

au.edu.qut.yawl.elements.YTask

au.edu.qut.yawl.miscellaneousPrograms.XPathSaxonUser

net.sf.saxon.event.Stripper

net.sf.saxon.om.NodeInfo

org.xml.sax.SAXParseException

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