Package com.facebook.presto.spi.type

Examples of com.facebook.presto.spi.type.Type

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        return columns.build();
    }

    private Type getColumnType(MBeanAttributeInfo attribute)
    {
        Type columnType;
        switch (attribute.getType()) {
            case "boolean":
            case "java.lang.Boolean":
                columnType = BOOLEAN;
                break;
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        if (name.getSuffix().startsWith(MAGIC_LITERAL_FUNCTION_PREFIX)) {
            // extract type from function name
            String typeName = name.getSuffix().substring(MAGIC_LITERAL_FUNCTION_PREFIX.length());

            // lookup the type
            Type type = typeManager.getType(typeName);
            checkArgument(type != null, "Type %s not registered", typeName);

            // verify we have one parameter of the proper type
            checkArgument(parameterTypes.size() == 1, "Expected one argument to literal function, but got %s", parameterTypes);
            Type parameterType = parameterTypes.get(0);
            checkArgument(parameterType.getJavaType() == type.getJavaType(),
                    "Expected type %s to use Java type %s, but Java type is %s",
                    type,
                    parameterType.getJavaType(),
                    type.getJavaType());

            MethodHandle identity = MethodHandles.identity(parameterTypes.get(0).getJavaType());
            return new FunctionInfo(
                    new Signature(MAGIC_LITERAL_FUNCTION_PREFIX, type, ImmutableList.copyOf(parameterTypes), false),
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    {
        if (actualTypes.size() != expectedTypes.size()) {
            return false;
        }
        for (int i = 0; i < expectedTypes.size(); i++) {
            Type expectedType = expectedTypes.get(i);
            Type actualType = actualTypes.get(i);
            if (!canCoerce(actualType, expectedType)) {
                return false;
            }
        }
        return true;
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            parameterTypes = Arrays.copyOfRange(parameterTypes, 1, parameterTypes.length);
        }

        for (int i = 0; i < parameterTypes.length; i++) {
            Class<?> actualType = parameterTypes[i];
            Type expectedType = argumentTypes.get(i);
            checkArgument(Primitives.unwrap(actualType) == expectedType.getJavaType(),
                    "Expected method %s parameter %s type to be %s (%s)",
                    method,
                    i,
                    expectedType.getJavaType().getName(),
                    expectedType);
        }
    }
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            if (name.isEmpty()) {
                name = camelToSnake(method.getName());
            }
            SqlType returnTypeAnnotation = method.getAnnotation(SqlType.class);
            checkArgument(returnTypeAnnotation != null, "Method %s return type does not have a @SqlType annotation", method);
            Type returnType = type(returnTypeAnnotation);
            Signature signature = new Signature(name.toLowerCase(), returnType, parameterTypes(method), false);

            verifyMethodSignature(method, signature.getReturnType(), signature.getArgumentTypes());

            FunctionBinder functionBinder = createFunctionBinder(method, scalarFunction.functionBinder());
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            MethodHandle methodHandle = lookup().unreflect(method);
            OperatorType operatorType = scalarOperator.value();

            List<Type> parameterTypes = parameterTypes(method);

            Type returnType;
            if (operatorType == OperatorType.HASH_CODE) {
                // todo hack for hashCode... should be int
                returnType = BIGINT;
            }
            else {
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            public Expression rewriteExpression(Expression node, Void context, ExpressionTreeRewriter<Void> treeRewriter)
            {
                Expression rewrittenExpression = treeRewriter.defaultRewrite(node, context);

                // cast expression if coercion is registered
                Type coercion = analysis.getCoercion(node);
                if (coercion != null) {
                    rewrittenExpression = new Cast(rewrittenExpression, coercion.getName());
                }

                return rewrittenExpression;
            }

            @Override
            public Expression rewriteQualifiedNameReference(QualifiedNameReference node, Void context, ExpressionTreeRewriter<Void> treeRewriter)
            {
                QualifiedName name = node.getName();

                Integer fieldIndex = resolvedNames.get(name);
                Preconditions.checkState(fieldIndex != null, "No field mapping for name '%s'", name);

                Symbol symbol = rewriteBase.getSymbol(fieldIndex);
                Preconditions.checkState(symbol != null, "No symbol mapping for name '%s' (%s)", name, fieldIndex);

                Expression rewrittenExpression = new QualifiedNameReference(symbol.toQualifiedName());

                // cast expression if coercion is registered
                Type coercion = analysis.getCoercion(node);
                if (coercion != null) {
                    rewrittenExpression = new Cast(rewrittenExpression, coercion.getName());
                }

                return rewrittenExpression;
            }
        }, expression);
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    private Map<Symbol, Expression> coerce(Iterable<? extends Expression> expressions, PlanBuilder subPlan, TranslationMap translations)
    {
        ImmutableMap.Builder<Symbol, Expression> projections = ImmutableMap.builder();

        for (Expression expression : expressions) {
            Type coercion = analysis.getCoercion(expression);
            Symbol symbol = symbolAllocator.newSymbol(expression, Objects.firstNonNull(coercion, analysis.getType(expression)));
            Expression rewritten = subPlan.rewrite(expression);
            if (coercion != null) {
                rewritten = new Cast(rewritten, coercion.getName());
            }
            projections.put(symbol, rewritten);
            translations.put(expression, symbol);
        }
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    {
    }

    public static BlockIterable createBlockIterable(Block firstBlock, Block... otherBlocks)
    {
        Type type = firstBlock.getType();
        return new StaticBlockIterable(type, ImmutableList.<Block>builder().add(firstBlock).add(otherBlocks).build());
    }
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        return new StaticBlockIterable(type, ImmutableList.<Block>builder().add(firstBlock).add(otherBlocks).build());
    }

    public static BlockIterable createBlockIterable(Iterable<? extends Block> blocks)
    {
        Type type = Iterables.get(blocks, 0).getType();
        return new StaticBlockIterable(type, ImmutableList.copyOf(blocks));
    }
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