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    • 9. 发明授权
    • Evaluating queries against in-memory objects without serialization
    • 评估针对内存中对象的查询而不进行序列化
    • US07287035B2
    • 2007-10-23
    • US10783599
    • 2004-02-20
    • Umesh MadanGeary L. EppleyDavid Wortendyke
    • Umesh MadanGeary L. EppleyDavid Wortendyke
    • G06F7/00G06Q99/00
    • G06F17/3066Y10S707/955Y10S707/99942
    • At least one implementation described herein relates to evaluating queries structured according to a first format against one or more objects structured according to a second, different format without serializing the object. Typically, evaluating an XML (eXtensible Markup Language) query against a CLR (Common Language Runtime) object required serializing the CLR object and deriving an XML construct from the serialized data. The query is then be evaluated against the XML construct. In the described implementations, significant system resources are realized by creating an infoset model that maps properties of an object to an object infoset. The query is then evaluated using the infoset to locate object values and, thus, no serialization is required. Dynamically generated IL is used and re-used to efficiently perform subsequent evaluation steps on similar queries.
    • 本文所描述的至少一个实现涉及针对根据第二不同格式而构造的一个或多个对象,根据第一格式来结构化查询而不串行化该对象。 通常,针对CLR(公共语言运行时)对象评估XML(可扩展标记语言)查询需要序列化CLR对象并从序列化数据中导出XML构造。 然后根据XML构造来评估查询。 在所描述的实现中,通过创建将对象的属性映射到对象信息集的信息集模型来实现重要的系统资源。 然后使用信息集来评估查询以定位对象值,因此不需要序列化。 动态生成的IL被使用并重新用于有效执行类似查询的后续评估步骤。