这个类存储共享内存标识符。
清单5是一个使用这些类存储和检索数据的示例。
Listing 5 shows an example of using these classes to store and retrieve data.
第二大类存储模式是通过简单的查询接口访问结构化的数据集。
A second large category of storage patterns were satisfied by access to simple query interface into structured datasets.
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