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C++ DocumentStorageIterator::get方法代码示例

本文整理汇总了C++中DocumentStorageIterator::get方法的典型用法代码示例。如果您正苦于以下问题:C++ DocumentStorageIterator::get方法的具体用法?C++ DocumentStorageIterator::get怎么用?C++ DocumentStorageIterator::get使用的例子?那么, 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DocumentStorageIterator的用法示例。


在下文中一共展示了DocumentStorageIterator::get方法的2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: compare

    int Document::compare(const Document& rL, const Document& rR) {
        DocumentStorageIterator lIt = rL.storage().iterator();
        DocumentStorageIterator rIt = rR.storage().iterator();

        while (true) {
            if (lIt.atEnd()) {
                if (rIt.atEnd())
                    return 0; // documents are the same length

                return -1; // left document is shorter
            }

            if (rIt.atEnd())
                return 1; // right document is shorter

            const ValueElement& rField = rIt.get();
            const ValueElement& lField = lIt.get();

            const int nameCmp = lField.nameSD().compare(rField.nameSD());
            if (nameCmp)
                return nameCmp; // field names are unequal

            const int valueCmp = Value::compare(lField.val, rField.val);
            if (valueCmp)
                return valueCmp; // fields are unequal

            rIt.advance();
            lIt.advance();
        }
    }
开发者ID:3rf,项目名称:mongo,代码行数:30,代码来源:document.cpp

示例2: compare

int Document::compare(const Document& rL,
                      const Document& rR,
                      const StringData::ComparatorInterface* stringComparator) {
    DocumentStorageIterator lIt = rL.storage().iterator();
    DocumentStorageIterator rIt = rR.storage().iterator();

    while (true) {
        if (lIt.atEnd()) {
            if (rIt.atEnd())
                return 0;  // documents are the same length

            return -1;  // left document is shorter
        }

        if (rIt.atEnd())
            return 1;  // right document is shorter

        const ValueElement& rField = rIt.get();
        const ValueElement& lField = lIt.get();

        // For compatibility with BSONObj::woCompare() consider the canonical type of values
        // before considerting their names.
        if (lField.val.getType() != rField.val.getType()) {
            const int rCType = canonicalizeBSONType(rField.val.getType());
            const int lCType = canonicalizeBSONType(lField.val.getType());
            if (lCType != rCType)
                return lCType < rCType ? -1 : 1;
        }

        const int nameCmp = lField.nameSD().compare(rField.nameSD());
        if (nameCmp)
            return nameCmp;  // field names are unequal

        const int valueCmp = Value::compare(lField.val, rField.val, stringComparator);
        if (valueCmp)
            return valueCmp;  // fields are unequal

        rIt.advance();
        lIt.advance();
    }
}
开发者ID:i80and,项目名称:mongo,代码行数:41,代码来源:document.cpp


注:本文中的DocumentStorageIterator::get方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。