最简单的可查询的对象存储可能。

Minimalist queryable object cache - that can also be used to persist objects **Background** This work was based on a test framework for a kd-tree. I was using interfaces provided here to create unit tests for the kd-tree. It turned out everything was easier and quicker using this rather than the kd-tree. **Usage** Unable to introduce H2 (or similar) or Google Collections into the stack trace? Faced with having to create a virtual database of your own with Maps and Sets? Born out of a need for a relatively typesafe collection to dice and slice <100k objects I ended up writing this library for use against a JDBC Datasource. However, it"s greatest use is with an in-memory DB such as H2. With the aid of a quick in-memory database like H2 or HSQL we can do relational set base queries rather than faffing around with a goat pile of iterators, loops, if-else statements and nested comparators :) Provides the ability to query (

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