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C++ TupleSchema::getColumnInfo方法代码示例

本文整理汇总了C++中TupleSchema::getColumnInfo方法的典型用法代码示例。如果您正苦于以下问题:C++ TupleSchema::getColumnInfo方法的具体用法?C++ TupleSchema::getColumnInfo怎么用?C++ TupleSchema::getColumnInfo使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TupleSchema的用法示例。


在下文中一共展示了TupleSchema::getColumnInfo方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: assert

TupleSchema*
TupleSchema::createTupleSchema(const TupleSchema *first,
                               const std::vector<uint16_t> firstSet,
                               const TupleSchema *second,
                               const std::vector<uint16_t> secondSet) {
    assert(first);

    const std::vector<uint16_t>::size_type offset = firstSet.size();
    const std::vector<uint16_t>::size_type combinedColumnCount = firstSet.size()
        + secondSet.size();
    std::vector<ValueType> columnTypes;
    std::vector<int32_t> columnLengths;
    std::vector<bool> columnAllowNull(combinedColumnCount, true);
    std::vector<bool> columnInBytes(combinedColumnCount, false);
    std::vector<uint16_t>::const_iterator iter;
    for (iter = firstSet.begin(); iter != firstSet.end(); iter++) {
        const TupleSchema::ColumnInfo *columnInfo = first->getColumnInfo(*iter);
        columnTypes.push_back(columnInfo->getVoltType());
        columnLengths.push_back(columnInfo->length);
        columnAllowNull[*iter] = columnInfo->allowNull;
        columnInBytes[*iter] = columnInfo->inBytes;
    }
    for (iter = secondSet.begin(); second && iter != secondSet.end(); iter++) {
        const TupleSchema::ColumnInfo *columnInfo = second->getColumnInfo(*iter);
        columnTypes.push_back(columnInfo->getVoltType());
        columnLengths.push_back(columnInfo->length);
        columnAllowNull[offset + *iter] = columnInfo->allowNull;
        columnInBytes[offset + *iter] = columnInfo->inBytes;
    }

    TupleSchema *schema = TupleSchema::createTupleSchema(columnTypes,
                                                         columnLengths,
                                                         columnAllowNull,
                                                         columnInBytes);

    // Remember to set the inlineability of each column correctly.
    for (iter = firstSet.begin(); iter != firstSet.end(); iter++) {
        ColumnInfo *info = schema->getColumnInfo(*iter);
        info->inlined = first->getColumnInfo(*iter)->inlined;
    }
    for (iter = secondSet.begin(); second && iter != secondSet.end(); iter++) {
        ColumnInfo *info = schema->getColumnInfo((int)offset + *iter);
        info->inlined = second->getColumnInfo(*iter)->inlined;
    }

    return schema;
}
开发者ID:surpass,项目名称:voltdb,代码行数:47,代码来源:TupleSchema.cpp


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