Saxon

Legacy ID: #4395656 Legacy Poster: Guilhem31 (guilhem31)

Hi, I would like to change a variable value after compiling a query with a static context. But when i compile again the query, i have the following stack trace : java.lang.IllegalStateException: Variable $myVariable has not been fixed up at net.sf.saxon.expr.VariableReference.typeCheck(VariableReference.java:95) at net.sf.saxon.query.XQueryExpression.<init>(XQueryExpression.java:58) at net.sf.saxon.query.QueryParser.makeXQueryExpression(QueryParser.java:108) at net.sf.saxon.query.StaticQueryContext.compileQuery(StaticQueryContext.java:472) at fr.guilhem.test.TestSetParam.doTest(TestSetParam.java:57) at fr.guilhem.test.TestSetParam.main(TestSetParam.java:26) Can a variable value be change without creating a new static/dynamic context and whitout declaring again all specific name space if any ? Here is my test : package fr.guilhem.test; import java.util.Iterator; import java.util.List; import net.sf.saxon.Configuration; import net.sf.saxon.expr.VariableDeclaration; import net.sf.saxon.om.NamePool; import net.sf.saxon.query.DynamicQueryContext; import net.sf.saxon.query.GlobalVariableDefinition; import net.sf.saxon.query.StaticQueryContext; import net.sf.saxon.query.XQueryExpression; import net.sf.saxon.value.SequenceType; public class TestSetParam { private StaticQueryContext iStatContext; private DynamicQueryContext iDynContext; public static void main(String[] args) { TestSetParam aTestSetParameter = new TestSetParam(); try { aTestSetParameter.doTest(); } catch (Exception e) { e.printStackTrace(); } } private void doTest() throws Exception { final Configuration iSaxonConfiguration = new Configuration(); iSaxonConfiguration.setHostLanguage(Configuration.XQUERY); iSaxonConfiguration.setTiming(true); iStatContext = new StaticQueryContext(iSaxonConfiguration); iDynContext = new DynamicQueryContext(iSaxonConfiguration); XQueryExpression iQuery; setParameter("myVariable", "01"); iQuery = iStatContext.compileQuery("$myVariable"); iQuery.explain(iSaxonConfiguration); displayResults(iQuery); setParameter("myVariable", "02"); iQuery = iStatContext.compileQuery("$myVariable"); iQuery.explain(iSaxonConfiguration); displayResults(iQuery); } private void displayResults(XQueryExpression aQuery) throws Exception { final Duration iDuration = new Duration(); List iResults = aQuery.evaluate(iDynContext); System.out.println("Results are:"); for (Object iObject : iResults) { System.out.println("-> " + iObject + "\n"); } } /** * Creation of a parameter for the request processor. * * @param aParamName * String Name of parameter. * @param aValue * Object Value to affect to parameter. * @throws Exception * an exception occuring during query execution */ private void setParameter(final String aParamName, final Object aValue) throws Exception { // Verification of the existing variable. boolean iExists = false; final Iterator<VariableDeclaration> iIterator = iStatContext .getModuleVariables(); VariableDeclaration iVariableDeclaration; while (iIterator.hasNext() && !iExists) { iVariableDeclaration = iIterator.next(); if (iVariableDeclaration.getVariableName().equals(aParamName)) { iExists = true; } } // If variable has not been declared, create it. if (!iExists) { final GlobalVariableDefinition iGlobalVariableDefinition = new GlobalVariableDefinition(); final short iUricode = 0; iGlobalVariableDefinition.setVariableName(aParamName); iGlobalVariableDefinition.setIsParameter(true); iGlobalVariableDefinition .setRequiredType(SequenceType.ANY_SEQUENCE); iGlobalVariableDefinition.setNameCode(NamePool.getDefaultNamePool() .allocate("", iUricode, aParamName)); iStatContext.declareVariable(iGlobalVariableDefinition); } // Initialisation iDynContext.setParameter(aParamName, aValue); } } Here is the complet trace : ============ Compiled Expression ============ $myVariable ============================================= Results are: -> 01 java.lang.IllegalStateException: Variable $myVariable has not been fixed up at net.sf.saxon.expr.VariableReference.typeCheck(VariableReference.java:95) at net.sf.saxon.query.XQueryExpression.<init>(XQueryExpression.java:58) at net.sf.saxon.query.QueryParser.makeXQueryExpression(QueryParser.java:108) at net.sf.saxon.query.StaticQueryContext.compileQuery(StaticQueryContext.java:472) at fr.guilhem.test.TestSetParam.doTest(TestSetParam.java:57) at fr.guilhem.test.TestSetParam.main(TestSetParam.java:26) Thank you.