Examples of org.exist.xquery.XQueryContext.declareVariable()

org.exist.xquery.XQueryContext.declareVariable()
Declare a user-defined variable.
The value argument is converted into an XPath value (@see XPathUtil#javaObjectToXPath(Object)).
@param qname the qualified name of the new variable. Any namespaces should have been declared before. @param value a Java object, representing the fixed value of the variable @return the created Variable object @throws XPathException if the value cannot be converted into a known XPath value or the variable QName references an unknownnamespace-prefix.

            context.declareVariable("q", "<query><term>heiterkeit</term></query>");
            Sequence seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <bool>" +
                "       <term>heiterkeit</term><term>blablabla</term>" +
                "   </bool>" +
                "</query>");

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <bool>" +
                "       <term occur='should'>heiterkeit</term><term occur='should'>blablabla</term>" +
                "   </bool>" +
                "</query>");

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <bool>" +
                "       <term occur='must'>heiterkeit</term><term occur='must'>blablabla</term>" +
                "   </bool>" +
                "</query>");

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(0, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <bool>" +
                "       <term occur='must'>heiterkeit</term><term occur='not'>herzen</term>" +
                "   </bool>" +
                "</query>");

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(0, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <bool>" +
                "       <phrase occur='must'>wunderbare heiterkeit</phrase><term occur='must'>herzen</term>" +
                "   </bool>" +
                "</query>");

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            context.declareVariable("q",
                    "<query>" +
                    "   <phrase slop='5'>heiterkeit seele eingenommen</phrase>" +
                    "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);

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            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            // phrase with wildcards
            context.declareVariable("q",
                "<query>" +
                "   <phrase slop='5'><term>heiter*</term><term>se?nnnle*</term></phrase>" +
                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <wildcard>?eiter*</wildcard>" +
                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <fuzzy max-edits='2'>selee</fuzzy>" +
                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);

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                "</query>");
            seq = xquery.execute(compiled, null);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());


            context.declareVariable("q",
                "<query>" +
                "   <bool>" +
                "       <fuzzy occur='must' max-edits='2'>selee</fuzzy>" +
                "       <wildcard occur='should'>bla*</wildcard>" +
                "   </bool>" +

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