Examples of net.sf.saxon.s9api.XPathCompiler.declareVariable()

net.sf.saxon.s9api.XPathCompiler.declareVariable()
Declare a variable as part of the static context for XPath expressions compiled using this XPathCompiler. It is an error for the XPath expression to refer to a variable unless it has been declared. This method declares the existence of the variable, but it does not bind any value to the variable; that is done later, when the XPath expression is evaluated. The variable is allowed to have any type (that is, the required type is item()*). @param qname The name of the variable, expressions as a QName


        XdmNode sdoc = source.read();
        XdmNode adoc = alternate.read();


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


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

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        XdmNode sdoc = source.read();
        XdmNode adoc = alternate.read();


        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);

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    }


    public static boolean xpathEqual(Processor proc, XdmItem a, XdmItem b) {
        try {
            XPathCompiler c = proc.newXPathCompiler();
            c.declareVariable(vara);
            c.declareVariable(varb);


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

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    public static boolean xpathEqual(Processor proc, XdmItem a, XdmItem b) {
        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);

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                try {
                    XPathCompiler xcomp = runtime.getProcessor().newXPathCompiler();
                    xcomp.setBaseURI(step.getNode().getBaseURI());


                    for (QName varname : globals.keySet()) {
                        xcomp.declareVariable(varname);
                    }


                    // Make sure the namespace bindings for evaluating the XPath expr are correct
                    // FIXME: Surely there's a better way to do this?
                    Hashtable<String,String> lclnsBindings = new Hashtable<String, String>();

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            } else {
                xcomp.setBaseURI(baseURI);
            }


            for (QName varname : boundOpts.keySet()) {
                xcomp.declareVariable(varname);
            }


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

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        // Make sure any namespace bindings in-scope for the label are available for the expression
        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++));

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                        for (XStep step : subpipeline) {
                            step.reset();
                        }


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


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

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                            step.reset();
                        }


                        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);

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                    } else {
                        XdmNode tdoc = pexp.get(pos);
                        XdmNode pdoc = pres.get(pos);


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


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

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