Examples of net.sf.saxon.s9api.XPathExecutable

net.sf.saxon.s9api.XPathExecutable
An XPathExecutable represents the compiled form of an XPath expression. To evaluate the expression, it must first be loaded to form an {@link XPathSelector}.
An XPathExecutable is immutable, and therefore thread-safe. It is simplest to load a new XPathSelector each time the expression is to be evaluated. However, the XPathSelector is serially reusable within a single thread.

An XPathExecutable is created by using the {@link XPathCompiler#compile} methodon the {@link XPathCompiler} class.


        XPathCompiler xcomp = runtime.getProcessor().newXPathCompiler();
        xcomp.declareVariable(doca);
        xcomp.declareVariable(docb);


        XPathExecutable xexec = xcomp.compile("deep-equal($doca,$docb)");
        XPathSelector selector = xexec.load();


        selector.setVariable(doca,sdoc);
        selector.setVariable(docb,adoc);


        Iterator<XdmItem> values = selector.iterator();

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        try {
            XPathCompiler c = proc.newXPathCompiler();
            c.declareVariable(vara);
            c.declareVariable(varb);


            XPathExecutable xexec = c.compile("$vara = $varb");
            XPathSelector selector = xexec.load();


            selector.setVariable(vara,a);
            selector.setVariable(varb,b);


            Iterator<XdmItem> values = selector.iterator();

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                    for (String prefix : lclnsBindings.keySet()) {
                        xcomp.declareNamespace(prefix, lclnsBindings.get(prefix));
                    }


                    XPathExecutable xexec = xcomp.compile(nsbinding.getXPath());
                    XPathSelector selector = xexec.load();


                    for (QName varname : globals.keySet()) {
                        XdmAtomicValue avalue = new XdmAtomicValue(globals.get(varname).getString());
                        selector.setVariable(varname,avalue);
                    }

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            }


            for (String prefix : nsBindings.keySet()) {
                xcomp.declareNamespace(prefix, nsBindings.get(prefix));
            }
            XPathExecutable xexec = null;
            try {
                xexec = xcomp.compile(xpath);
            } catch (SaxonApiException sae) {
                Throwable t = sae.getCause();
                if (t instanceof XPathException) {
                    XPathException xe = (XPathException) t;
                    if (xe.getMessage().contains("Undeclared (or unbound?) variable")) {
                        throw XProcException.dynamicError(26, step.getNode(), xe.getMessage());
                    }
                }
                throw sae;
            }


            XPathSelector selector = xexec.load();


            for (QName varname : boundOpts.keySet()) {
                XdmValue value = null;
                RuntimeValue rval = boundOpts.get(varname);
                if (runtime.getAllowGeneralExpressions() && rval.hasGeneralValue()) {

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        for (String prefix : test.getNamespaceBindings().keySet()) {
            xcomp.declareNamespace(prefix, test.getNamespaceBindings().get(prefix));
        }


        XPathExecutable xexec = xcomp.compile(test.getString());


        // From Michael Kay: http://markmail.org/message/vkb2vaq2miylgndu
        //
        // Underneath the s9api XPathExecutable is a net.sf.saxon.sxpath.XPathExpression.


        XPathExpression xexpr = xexec.getUnderlyingExpression();


        int pos = 0;
        while (source.moreDocuments()) {
            XdmNode doc = source.read();
            pos++;

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        for (String prefix : label.getNamespaceBindings().keySet()) {
            xcomp.declareNamespace(prefix, label.getNamespaceBindings().get(prefix));
        }
        xcomp.declareVariable(p_index);


        XPathExecutable xexec = xcomp.compile(label.getString());
        XPathSelector selector = xexec.load();


        selector.setVariable(p_index,new XdmAtomicValue(count++));


        selector.setContextItem(node);

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                        XPathCompiler xcomp = runtime.getProcessor().newXPathCompiler();
                        xcomp.declareVariable(doca);
                        xcomp.declareVariable(docb);


                        XPathExecutable xexec = xcomp.compile("deep-equal($doca,$docb)");
                        XPathSelector selector = xexec.load();


                        selector.setVariable(doca, is_doc);
                        selector.setVariable(docb, os_doc);


                        Iterator<XdmItem> values = selector.iterator();

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                        XPathCompiler xcomp = runtime.getProcessor().newXPathCompiler();
                        xcomp.declareVariable(doca);
                        xcomp.declareVariable(docb);


                        XPathExecutable xexec = xcomp.compile("deep-equal($doca,$docb)");
                        XPathSelector selector = xexec.load();


                        selector.setVariable(doca,tdoc);
                        selector.setVariable(docb,pdoc);


                        Iterator<XdmItem> values = selector.iterator();

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            for (String prefix : groupAdjacent.getNamespaceBindings().keySet()) {
                xcomp.declareNamespace(prefix, groupAdjacent.getNamespaceBindings().get(prefix));
            }


            XPathExecutable xexec = xcomp.compile(groupAdjacent.getString());
            XPathSelector selector = xexec.load();
            selector.setContextItem(node);


            Iterator<XdmItem> values = selector.iterator();
            if (values.hasNext()) {
                return values.next();

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        for (String prefix : nsBindings.keySet()) {
            xcomp.declareNamespace(prefix, nsBindings.get(prefix));
        }


        try {
            XPathExecutable xexec = xcomp.compile(select);
            selector = xexec.load();
        } catch (SaxonApiException sae) {
            throw new XProcException(sae);
        }


        try {

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