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Mangrove
The C++ Object Document Mapper for MongoDB
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Represents a comparison expression as above, but stores a value instead of a reference. More...
#include <query_builder.hpp>
Inheritance diagram for mangrove::comparison_value_expr< NvpT, U >:Additional Inherited Members | |
| Public Member Functions inherited from mangrove::comparison_expr< NvpT, U > | |
| constexpr | comparison_expr (const NvpT &nvp, const U &field, const char *op) |
| Constructs a query expression for the given key, value, and comparison type. More... | |
| constexpr | comparison_expr (const comparison_expr &expr, const char *op) |
| Takes a comparison expression, and creates a new one with a different operator, but the same value and field. More... | |
| std::string & | append_name (std::string &s) const |
| Appends the name of the contained field to a string. | |
| void | append_to_bson (bsoncxx::builder::core &builder, bool wrap=false, bool omit_name=false) const |
| Appends this expression to a BSON core builder, as a key-value pair of the form "key: {$cmp: val}", where $cmp is some comparison operator. More... | |
| operator bsoncxx::document::view_or_value () const | |
| Converts the expression to a BSON filter for a query. More... | |
Represents a comparison expression as above, but stores a value instead of a reference.
This is useful for storing temporary or computed values. Internally, it uses a comparison_expr whose value is a b_regex.
1.8.11
