You can perform several functions, such as add custom code or invoke relationship mapping.
您可以执行多个函数，如添加自定义代码或调用关系映射。
OR mapping is a crucial element of an application designed around JPA.
OR映射是围绕JPA设计的应用程序的重要元素。
We call this layer of code the technology mapping code (or glue code).
我们将这一层代码称作技术映射代码(或胶合代码[glue code])。
Search for hotels nearby via address, city, airport or even GPS mapping
通过地址、城市名、机场甚至GPS地图来搜索附近的酒店；
Search for hotels nearby via address, city, airport or even GPS mapping
通过地址、城市名、机场甚至GPS地图来搜索附近的酒店；
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