Package org.apache.vxquery.types

Examples of org.apache.vxquery.types.SequenceType

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                        tCtx.pushVariableScope();
                        LogicalVariable forLVar = newLogicalVariable();
                        LogicalVariable posLVar = fvdNode.getPosVar() != null ? newLogicalVariable() : null;
                        UnnestOperator unnest = new UnnestOperator(forLVar,
                                mutable(ufce(BuiltinOperators.ITERATE, seq)), posLVar, null);
                        SequenceType forVarType = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_ONE);
                        if (fvdNode.getType() != null) {
                            forVarType = createSequenceType(fvdNode.getType());
                        }
                        XQueryVariable forVar = new XQueryVariable(createQName(fvdNode.getForVar()), forVarType,
                                forLVar);
                        tCtx.varScope.registerVariable(forVar);
                        XQueryVariable posVar = null;
                        if (fvdNode.getPosVar() != null) {
                            posVar = new XQueryVariable(createQName(fvdNode.getPosVar()), SequenceType.create(
                                    BuiltinTypeRegistry.XS_INTEGER, Quantifier.QUANT_ONE), posLVar);
                            tCtx.varScope.registerVariable(posVar);
                        }
                        assert fvdNode.getScoreVar() == null;
                        unnest.getInputs().add(mutable(tCtx.op));
                        tCtx.op = unnest;
                        ++pushCount;
                    }
                    break;
                }
                case LET_CLAUSE: {
                    LetClauseNode lcNode = (LetClauseNode) cNode;
                    for (LetVarDeclNode lvdNode : lcNode.getVariables()) {
                        LogicalVariable seqVar = translateExpression(lvdNode.getSequence(), tCtx);
                        tCtx.pushVariableScope();
                        SequenceType letVarType = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_ONE);
                        if (lvdNode.getType() != null) {
                            letVarType = createSequenceType(lvdNode.getType());
                        }
                        XQueryVariable letVar = new XQueryVariable(createQName(lvdNode.getLetVar()), letVarType, seqVar);
                        tCtx.varScope.registerVariable(letVar);
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    }

    private LogicalVariable translateLiteralNode(TranslationContext tCtx, LiteralNode lNode) throws SystemException {
        String image = lNode.getImage();
        LiteralNode.LiteralType lType = lNode.getType();
        SequenceType t = null;
        Object value = null;
        switch (lType) {
            case DECIMAL:
                t = SequenceType.create(BuiltinTypeRegistry.XS_DECIMAL, Quantifier.QUANT_ONE);
                value = Double.parseDouble(image);
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        return translateExpression(eNode.getExpr(), tCtx);
    }

    private LogicalVariable translateTypeExprNode(TranslationContext tCtx, TypeExprNode teNode) throws SystemException {
        LogicalVariable var = translateExpression(teNode.getExpr(), tCtx);
        SequenceType type = createSequenceType(teNode.getType());
        ILogicalExpression expr = null;
        switch (teNode.getOperator()) {
            case CAST:
                expr = cast(vre(var), type);
                break;
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            throw new SystemException(ErrorCode.XPST0017, fnNode.getName().getSourceLocation());
        }
        Signature sign = fn.getSignature();
        List<Mutable<ILogicalExpression>> argExprs = new ArrayList<Mutable<ILogicalExpression>>();
        for (int i = 0; i < args.size(); ++i) {
            SequenceType argType = sign.getParameterType(i);
            argExprs.add(mutable(normalize(vre(args.get(i)), argType)));
        }
        LogicalVariable lVar = createAssignment(new ScalarFunctionCallExpression(fn, argExprs), tCtx);
        return lVar;
    }
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                BuiltinTypeRegistry.XS_INTEGER, Quantifier.QUANT_ONE), lastLVar));
        LogicalVariable forLVar = newLogicalVariable();
        LogicalVariable posLVar = newLogicalVariable();
        UnnestOperator unnest = new UnnestOperator(forLVar, mutable(ufce(BuiltinOperators.ITERATE, vre(seqLVar))),
                posLVar, null);
        SequenceType forVarType = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_ONE);
        XQueryVariable forVar = new XQueryVariable(XMLQueryCompilerConstants.DOT_VAR_NAME, forVarType, forLVar);
        tCtx.varScope.registerVariable(forVar);
        XQueryVariable posVar = new XQueryVariable(XMLQueryCompilerConstants.POS_VAR_NAME, SequenceType.create(
                BuiltinTypeRegistry.XS_INTEGER, Quantifier.QUANT_ONE), posLVar);
        tCtx.varScope.registerVariable(posVar);
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        FunctionIdentifier fi = expr.getFunctionIdentifier();
        List<Mutable<ILogicalExpression>> args = expr.getArguments();
        if ((identifiesTypeOperator(fi) || identifiesPathStep(fi)) && args.size() > 1) {
            final ILogicalExpression typeEx = args.get(1).getValue();
            assert typeEx.getExpressionTag() == LogicalExpressionTag.CONSTANT;
            SequenceType type = getSequenceType((ConstantExpression) typeEx);
            sb.append(fi + " <" + type + ">, Args:");
            appendArgument(sb, args.get(0), indent + 2);
        } else {
            sb.append("function-call: " + fi + ", Args:");
            appendArguments(sb, args, indent + 2);
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        final VXQueryConstantValue typeCodeVal = (VXQueryConstantValue) cTypeEx.getValue();
        tvp.set(typeCodeVal.getValue(), 0, typeCodeVal.getValue().length);
        assert tvp.getTag() == ValueTag.XS_INT_TAG;
        tvp.getValue(ip);
        int typeCode = ip.getInteger();
        SequenceType type = ctx.lookupSequenceType(typeCode);
        return type;
    }
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                    }

                    case VARIABLE_DECLARATION: {
                        VarDeclNode node = (VarDeclNode) d;
                        QName name = createQName(node.getName());
                        SequenceType type = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_STAR);
                        if (node.getType() != null) {
                            type = createSequenceType(node.getType());
                        }
                        LogicalVariable lVar = newLogicalVariable();
                        XQueryVariable var = new XQueryVariable(name, type, lVar);
                        moduleCtx.registerVariable(var);
                        break;
                    }

                    case FUNCTION_DECLARATION: {
                        FunctionDeclNode node = (FunctionDeclNode) d;
                        boolean external = node.getBody() == null;
                        QName name = createQName(node.getName(), moduleCtx.getDefaultFunctionNamespaceUri());
                        String uri = name.getNamespaceURI();
                        if (XQueryConstants.FN_NSURI.equals(uri) || XQueryConstants.XS_NSURI.equals(uri)
                                || XQueryConstants.XSI_NSURI.equals(uri) || XQueryConstants.XML_NSURI.equals(uri)) {
                            throw new SystemException(ErrorCode.XQST0045, node.getSourceLocation());
                        }
                        SequenceType rType = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_STAR);
                        if (node.getReturnType() != null) {
                            rType = createSequenceType(node.getReturnType());
                        }
                        Pair<QName, SequenceType> paramTypes[] = new Pair[node.getParameters().size()];
                        for (int i = 0; i < paramTypes.length; ++i) {
                            ParamNode pNode = node.getParameters().get(i);
                            QName pName = createQName(pNode.getName());
                            SequenceType pType = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_STAR);
                            if (pNode.getType() != null) {
                                pType = createSequenceType(pNode.getType());
                            }
                            paramTypes[i] = Pair.<QName, SequenceType> of(pName, pType);
                        }
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                            TranslationContext tCtx = new TranslationContext(null, new EmptyTupleSourceOperator());
                            XQueryVariable[] params = new XQueryVariable[arity];
                            for (int i = 0; i < arity; ++i) {
                                ParamNode pNode = node.getParameters().get(i);
                                QName pName = createQName(pNode.getName());
                                SequenceType pType = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_STAR);
                                if (pNode.getType() != null) {
                                    pType = createSequenceType(pNode.getType());
                                }
                                XQueryVariable pVar = new XQueryVariable(pName, pType, newLogicalVariable());
                                params[i] = pVar;
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        for (QuantifiedVarDeclNode qvdNode : qeNode.getVariables()) {
            ILogicalExpression seq = vre(translateExpression(qvdNode.getSequence(), tCtx));
            tCtx.pushVariableScope();
            LogicalVariable forLVar = newLogicalVariable();
            UnnestOperator unnest = new UnnestOperator(forLVar, mutable(ufce(BuiltinOperators.ITERATE, seq)));
            SequenceType forVarType = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_ONE);
            if (qvdNode.getType() != null) {
                forVarType = createSequenceType(qvdNode.getType());
            }
            XQueryVariable forVar = new XQueryVariable(createQName(qvdNode.getVariable()), forVarType, forLVar);
            tCtx.varScope.registerVariable(forVar);
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Related Classes of org.apache.vxquery.types.SequenceType

  • org.apache.vxquery.compiler.algebricks.prettyprint.VXQueryLogicalExpressionPrettyPrintVisitor
  • org.apache.vxquery.compiler.rewriter.rules.AbstractRemoveRedundantTypeExpressionsRule
  • org.apache.vxquery.compiler.rewriter.rules.EliminateSubplanForSingleItemsRule
  • org.apache.vxquery.compiler.rewriter.rules.RemoveUnusedTreatRule
  • org.apache.vxquery.runtime.functions.step.AbstractPathStepScalarEvaluator
  • org.apache.vxquery.runtime.functions.step.AbstractSinglePathStepScalarEvaluator
  • org.apache.vxquery.runtime.functions.step.ChildPathStepOperatorDescriptor
  • org.apache.vxquery.runtime.functions.step.ChildPathStepUnnesting
  • org.apache.vxquery.runtime.functions.type.AbstractTypeScalarEvaluatorFactory$AbstractTypeScalarEvaluator
  • org.apache.vxquery.xmlquery.translator.XMLQueryTranslator
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