Package com.facebook.presto.spi.type

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

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        for (Map.Entry<ColumnHandle, Domain> entry : tupleDomain.getDomains().entrySet()) {
            ColumnHandle columnHandle = entry.getKey();
            checkArgument(symbolTranslationMap.containsKey(columnHandle), "Unable to convert TupleDomain to Expression b/c don't know Symbol for ColumnHandle %s", columnHandle);
            Symbol symbol = symbolTranslationMap.get(columnHandle);
            QualifiedNameReference reference = new QualifiedNameReference(symbol.toQualifiedName());
            Type type = symbolTypes.get(symbol);
            conjunctBuilder.add(toPredicate(entry.getValue(), reference, type));
        }
        return combineConjuncts(conjunctBuilder.build());
    }
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    public static Type readType(TypeManager typeManager, SliceInput sliceInput)
    {
        checkNotNull(sliceInput, "sliceInput is null");

        String name = readLengthPrefixedString(sliceInput);
        Type type = typeManager.getType(name);
        checkArgument(type != null, "Unknown type %s", name);
        return type;
    }
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    }

    public void addType(Type type)
    {
        verifyTypeClass(type);
        Type existingType = types.putIfAbsent(type.getName().toLowerCase(), type);
        checkState(existingType == null || existingType.equals(type), "Type %s is already registered", type.getName());
    }
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                    BlockBuilder output = pageBuilder.getBlockBuilder(column);
                    if (cursor.isNull(column)) {
                        output.appendNull();
                    }
                    else {
                        Type type = getTypes().get(column);
                        Class<?> javaType = type.getJavaType();
                        if (javaType == boolean.class) {
                            output.appendBoolean(cursor.getBoolean(column));
                        }
                        else if (javaType == long.class) {
                            output.appendLong(cursor.getLong(column));
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                .transform(new Function<Symbol, Field>()
                {
                    @Override
                    public Field apply(Symbol symbol)
                    {
                        Type type = types.get(symbol);
                        checkArgument(type != null, "No type for symbol %s", symbol);
                        return Field.newUnqualified(symbol.getName(), type);
                    }
                })
                .list();
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            this.columnHandles = ImmutableMap.copyOf(checkNotNull(columnHandles, "columnHandles is null"));
        }

        private Type checkedTypeLookup(Symbol symbol)
        {
            Type type = types.get(symbol);
            checkArgument(type != null, "Types is missing info for symbol: %s", symbol);
            return type;
        }
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                return super.visitComparisonExpression(node, complement);
            }
            node = normalizeSimpleComparison(node);

            Symbol symbol = Symbol.fromQualifiedName(((QualifiedNameReference) node.getLeft()).getName());
            Type columnType = checkedTypeLookup(symbol);
            ColumnHandle columnHandle = checkedColumnHandleLookup(symbol);
            Object value = LiteralInterpreter.evaluate(metadata, session, node.getRight());

            // Handle the cases where implicit coercions can happen in comparisons
            // TODO: how to abstract this out
            if (value instanceof Double && columnType.equals(BIGINT)) {
                return process(coerceDoubleToLongComparison(node), complement);
            }
            if (value instanceof Long && columnType.equals(DoubleType.DOUBLE)) {
                value = ((Long) value).doubleValue();
            }
            verifyType(columnType, value);
            return createComparisonExtractionResult(node.getType(), columnHandle, columnType, objectToComparable(value), complement);
        }
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            if (!(node.getValue() instanceof QualifiedNameReference)) {
                return super.visitIsNullPredicate(node, complement);
            }

            Symbol symbol = Symbol.fromQualifiedName(((QualifiedNameReference) node.getValue()).getName());
            Type columnType = checkedTypeLookup(symbol);
            ColumnHandle columnHandle = checkedColumnHandleLookup(symbol);

            Domain domain = complementIfNecessary(Domain.onlyNull(wrap(columnType.getJavaType())), complement);
            return new ExtractionResult(
                    TupleDomain.withColumnDomains(ImmutableMap.<ColumnHandle, Domain>of(columnHandle, domain)),
                    TRUE_LITERAL);
        }
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            if (!(node.getValue() instanceof QualifiedNameReference)) {
                return super.visitIsNotNullPredicate(node, complement);
            }

            Symbol symbol = Symbol.fromQualifiedName(((QualifiedNameReference) node.getValue()).getName());
            Type columnType = checkedTypeLookup(symbol);
            ColumnHandle columnHandle = checkedColumnHandleLookup(symbol);

            Domain domain = complementIfNecessary(Domain.notNull(wrap(columnType.getJavaType())), complement);
            return new ExtractionResult(
                    TupleDomain.withColumnDomains(ImmutableMap.<ColumnHandle, Domain>of(columnHandle, domain)),
                    TRUE_LITERAL);
        }
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                .comment("boolean wasNull = false;")
                .putVariable("wasNull", false)
                .getVariable("output")
                .append(body);

        Type projectionType = expressionTypes.get(projection);
        Block notNullBlock = new Block(context);
        if (projectionType.getJavaType() == boolean.class) {
            notNullBlock
                    .comment("output.append(<booleanStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendBoolean", BlockBuilder.class, boolean.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == long.class) {
            notNullBlock
                    .comment("output.append(<longStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendLong", BlockBuilder.class, long.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == double.class) {
            notNullBlock
                    .comment("output.append(<doubleStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendDouble", BlockBuilder.class, double.class)
                    .pop();
        }
        else if (projectionType.getJavaType() == Slice.class) {
            notNullBlock
                    .comment("output.append(<sliceStackValue>);")
                    .invokeInterface(BlockBuilder.class, "appendSlice", BlockBuilder.class, Slice.class)
                    .pop();
        }
        else {
            throw new UnsupportedOperationException("Type " + projectionType + " can not be output yet");
        }

        Block nullBlock = new Block(context)
                .comment("output.appendNull();")
                .pop(projectionType.getJavaType())
                .invokeInterface(BlockBuilder.class, "appendNull", BlockBuilder.class)
                .pop();

        projectionMethod.getBody()
                .comment("if the result was null, appendNull; otherwise append the value")
                .append(new IfStatement(context, new Block(context).getVariable("wasNull"), nullBlock, notNullBlock))
                .ret();

        return projectionType.getJavaType();
    }
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