Package org.apache.vxquery.functions

Examples of org.apache.vxquery.functions.Signature

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                            if (pNode.getType() != null) {
                                pType = createSequenceType(pNode.getType());
                            }
                            paramTypes[i] = Pair.<QName, SequenceType> of(pName, pType);
                        }
                        Signature sign = new Signature(rType, paramTypes);
                        Function f = external ? new ExternalFunction(name, sign) : new UserDefinedXQueryFunction(name,
                                sign, null);
                        moduleCtx.registerFunction(f);
                        break;
                    }
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                        if (!external) {
                            QName name = createQName(node.getName(), moduleCtx.getDefaultFunctionNamespaceUri());
                            int arity = node.getParameters().size();
                            UserDefinedXQueryFunction f = (UserDefinedXQueryFunction) moduleCtx.lookupFunction(name,
                                    arity);
                            Signature sign = f.getSignature();
                            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;
                                tCtx.varScope.registerVariable(pVar);
                            }
                            f.setParameters(params);
                            LogicalVariable var = translateExpression(node.getBody(), tCtx);
                            ILogicalExpression expr = treat(vre(var), sign.getReturnType());
                            var = createAssignment(expr, tCtx);
                            f.setBody(new ALogicalPlanImpl(mutable(tCtx.op)));
                        }
                        break;
                    }
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            }
        }
        if (fn == null) {
            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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        return translateExpression(ee.getExpression(), tCtx);
    }

    private LogicalVariable translateInfixExprNode(TranslationContext tCtx, InfixExprNode ie) throws SystemException {
        Function operator = getOperator(ie.getOperator());
        Signature sign = operator.getSignature();
        LogicalVariable varLeft = translateExpression(ie.getLeftExpr(), tCtx);
        LogicalVariable varRight = translateExpression(ie.getRightExpr(), tCtx);
        ILogicalExpression arg1 = normalize(vre(varLeft), sign.getParameterType(0));
        ILogicalExpression arg2 = normalize(vre(varRight), sign.getParameterType(1));
        if (BuiltinOperators.EXCEPT.equals(operator) || BuiltinOperators.INTERSECT.equals(operator)) {
            arg1 = sfce(BuiltinOperators.SORT_DISTINCT_NODES_ASC, arg1);
            arg2 = sfce(BuiltinOperators.SORT_DISTINCT_NODES_ASC, arg2);
        }
        ILogicalExpression result = sfce(operator, arg1, arg2);
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                            if (pNode.getType() != null) {
                                pType = createSequenceType(pNode.getType());
                            }
                            paramTypes[i] = Pair.<QName, SequenceType> of(pName, pType);
                        }
                        Signature sign = new Signature(rType, paramTypes);
                        Function f = external ? new ExternalFunction(name, sign) : new UserDefinedXQueryFunction(name,
                                sign, null);
                        moduleCtx.registerFunction(f);
                        break;
                    }
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                        if (!external) {
                            QName name = createQName(node.getName(), moduleCtx.getDefaultFunctionNamespaceUri());
                            int arity = node.getParameters().size();
                            UserDefinedXQueryFunction f = (UserDefinedXQueryFunction) moduleCtx.lookupFunction(name,
                                    arity);
                            Signature sign = f.getSignature();
                            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;
                                tCtx.varScope.registerVariable(pVar);
                            }
                            f.setParameters(params);
                            LogicalVariable var = translateExpression(node.getBody(), tCtx);
                            ILogicalExpression expr = treat(vre(var), sign.getReturnType());
                            var = createAssignment(expr, tCtx);
                            f.setBody(new ALogicalPlanImpl(mutable(tCtx.op)));
                        }
                        break;
                    }
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            }
        }
        if (fn == null) {
            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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        return translateExpression(ee.getExpression(), tCtx);
    }

    private LogicalVariable translateInfixExprNode(TranslationContext tCtx, InfixExprNode ie) throws SystemException {
        Function operator = getOperator(ie.getOperator());
        Signature sign = operator.getSignature();
        LogicalVariable varLeft = translateExpression(ie.getLeftExpr(), tCtx);
        LogicalVariable varRight = translateExpression(ie.getRightExpr(), tCtx);
        ILogicalExpression arg1 = normalize(vre(varLeft), sign.getParameterType(0));
        ILogicalExpression arg2 = normalize(vre(varRight), sign.getParameterType(1));
        if (BuiltinOperators.EXCEPT.equals(operator) || BuiltinOperators.INTERSECT.equals(operator)) {
            arg1 = sfce(BuiltinOperators.SORT_DISTINCT_NODES_ASC, arg1);
            arg2 = sfce(BuiltinOperators.SORT_DISTINCT_NODES_ASC, arg2);
        }
        ILogicalExpression result = sfce(operator, arg1, arg2);
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                            if (pNode.getType() != null) {
                                pType = createSequenceType(pNode.getType());
                            }
                            paramTypes[i] = Pair.<QName, SequenceType> of(pName, pType);
                        }
                        Signature sign = new Signature(rType, paramTypes);
                        Function f = external ? new ExternalFunction(name, sign) : new UserDefinedXQueryFunction(name,
                                sign, null);
                        moduleCtx.registerFunction(f);
                        break;
                    }
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                        if (!external) {
                            QName name = createQName(node.getName(), moduleCtx.getDefaultFunctionNamespaceUri());
                            int arity = node.getParameters().size();
                            UserDefinedXQueryFunction f = (UserDefinedXQueryFunction) moduleCtx.lookupFunction(name,
                                    arity);
                            Signature sign = f.getSignature();
                            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;
                                tCtx.varScope.registerVariable(pVar);
                            }
                            f.setParameters(params);
                            LogicalVariable var = translateExpression(node.getBody(), tCtx);
                            ILogicalExpression expr = treat(vre(var), sign.getReturnType());
                            var = createAssignment(expr, tCtx);
                            f.setBody(new ALogicalPlanImpl(mutable(tCtx.op)));
                        }
                        break;
                    }
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Related Classes of org.apache.vxquery.functions.Signature

  • org.apache.vxquery.xmlquery.translator.XMLQueryTranslator
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