Examples of net.sf.saxon.query.StaticQueryContext.compileQuery()

Class net.sf.saxon.query.StaticQueryContext

Examples of net.sf.saxon.query.StaticQueryContext.compileQuery()

net.sf.saxon.query.StaticQueryContext.compileQuery()
Prepare an XQuery query for subsequent evaluation. The source text of the query is supplied as a String. The base URI of the query is taken from the static context, and defaults to the current working directory.
Note that this interface makes the caller responsible for decoding the query and presenting it as a string of characters. This means it is likely that any encoding specified in the query prolog will be ignored.
@param query The XQuery query to be evaluated, supplied as a string. @return an XQueryExpression object representing the prepared expression @throws net.sf.saxon.trans.XPathException if the syntax of the expression is wrong, or if it references namespaces, variables, or functions that have not been declared, or contains other static errors. @since 8.4

     */


    public static void exampleWithParam() throws XPathException {
        final Configuration config = new Configuration();
        final StaticQueryContext sqc = config.newStaticQueryContext();
        final XQueryExpression exp = sqc.compileQuery("declare variable $in as xs:integer external;" +
                "$in * $in");


        final DynamicQueryContext dynamicContext = new DynamicQueryContext(config);
        dynamicContext.setParameterValue("in", Int64Value.makeIntegerValue(17));
        final Long result = (Long)exp.evaluateSingle(dynamicContext);

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    public static void examplePipeline() throws XPathException {
        final Configuration config = new Configuration();


        // Compile the first query
        final StaticQueryContext sqc1 = config.newStaticQueryContext();
        final XQueryExpression exp1 = sqc1.compileQuery("declare variable $in as xs:integer external;" +
                "document{ <a>{$in * $in}</a> }");


        // Compile the second query (each query should have its own static context)
        final StaticQueryContext sqc2 = config.newStaticQueryContext();
        final XQueryExpression exp2 = sqc2.compileQuery("/a + 5");

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        final XQueryExpression exp1 = sqc1.compileQuery("declare variable $in as xs:integer external;" +
                "document{ <a>{$in * $in}</a> }");


        // Compile the second query (each query should have its own static context)
        final StaticQueryContext sqc2 = config.newStaticQueryContext();
        final XQueryExpression exp2 = sqc2.compileQuery("/a + 5");


        // Run the first query
        final DynamicQueryContext dynamicContext = new DynamicQueryContext(config);
        dynamicContext.setParameterValue("in", Int64Value.makeIntegerValue(3));
        final NodeInfo doc = (NodeInfo)exp1.evaluateSingle(dynamicContext);

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     */


    public static void exampleDirectFunction() throws XPathException {
        final Configuration config = new Configuration();
        final StaticQueryContext sqc = config.newStaticQueryContext();
        final XQueryExpression exp1 = sqc.compileQuery("declare namespace f='f.ns';" +
                "declare function f:t1($v1 as xs:integer, $v2 as xs:untypedAtomic*) { " +
                "   $v1 div $v2" +
                "};" +
                "10");

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                    StaticQueryContext qenv = config.newStaticQueryContext();
                    qenv.setBaseURI(query.toURI().toString());
                    if (val) {
                        qenv.setSchemaAware(true);
                    }
                    XQueryExpression exp = qenv.compileQuery(new FileReader(query));
                    int runs = 0;
                    long totalTime = 0;
                    long min = Integer.MAX_VALUE;
                    long max = 0;
                    for (int t=0; t<1000; t++) {

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     * Run a query against input that is supplied using the pull interface
     */


    public void query(PullProvider in, String query, OutputStream out) throws XPathException {
        final StaticQueryContext sqc = config.newStaticQueryContext();
        final XQueryExpression exp = sqc.compileQuery(query);
        final DynamicQueryContext dynamicContext = new DynamicQueryContext(config);
        dynamicContext.setContextItem(config.buildDocument(new PullSource(in)));
        Properties props = new Properties();
        props.setProperty(OutputKeys.INDENT, "yes");
        exp.run(dynamicContext, new StreamResult(out), props);

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     * of the query
     */


    public PullProvider pullQueryResults(NodeInfo source, String query) throws XPathException {
        final StaticQueryContext sqc = config.newStaticQueryContext();
        final XQueryExpression exp = sqc.compileQuery(query);
        final DynamicQueryContext dynamicContext = new DynamicQueryContext(config);
        dynamicContext.setContextItem(source);
        PullProvider pull = new PullFromIterator(exp.iterator(dynamicContext));
        pull = new PullNamespaceReducer(pull);
        pull.setPipelineConfiguration(config.makePipelineConfiguration());

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     */


    public static void exampleToSerializedSequence() throws XPathException {
        final Configuration config = new Configuration();
        final StaticQueryContext sqc = new StaticQueryContext(config);
        final XQueryExpression exp = sqc.compileQuery("<doc><chap><a>3</a></chap></doc>//a, <b>4</b>, attribute c {5}, 19");
        Properties props = new Properties();
        props.setProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");


        final DynamicQueryContext dynamicContext = new DynamicQueryContext(config);
        final SequenceIterator iter = exp.iterator(dynamicContext);

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     */


    public static void exampleToWrappedSequence() throws XPathException {
        final Configuration config = new Configuration();
        final StaticQueryContext sqc = new StaticQueryContext(config);
        final XQueryExpression exp = sqc.compileQuery("<doc><chap><a>3</a></chap></doc>//a, <b>4</b>, attribute c {5}, 19");
        Properties props = new Properties();
        props.setProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
        props.setProperty(OutputKeys.INDENT, "yes");


        final DynamicQueryContext dynamicContext = new DynamicQueryContext(config);

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     */


    public static void exampleToHTMLFile() throws XPathException, IOException {
        final Configuration config = new Configuration();
        final StaticQueryContext sqc = new StaticQueryContext(config);
        final XQueryExpression exp = sqc.compileQuery(new FileReader("query/books-to-html.xq"));
        final DynamicQueryContext dynamicContext = new DynamicQueryContext(config);
        dynamicContext.setContextNode(sqc.buildDocument(new StreamSource("data/books.xml")));
        final Properties props = new Properties();
        props.setProperty(OutputKeys.METHOD, "html");
        props.setProperty(OutputKeys.DOCTYPE_PUBLIC, "-//W3C//DTD HTML 4.01 Transitional//EN");

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