如何在Java中查询对象集合（标准/类似SQL）？ [英] How do you query object collections in Java (Criteria/SQL-like)?

问题描述

假设您有几百个内存中对象的集合，并且您需要查询此列表以返回与某些SQL或条件（如查询）匹配的对象。例如，您可能有一个汽车对象列表，并且您想返回在20世纪60年代制造的所有汽车，其牌照以AZ开头，以汽车模型的名称排序。

Suppose you have a collection of a few hundred in-memory objects and you need to query this List to return objects matching some SQL or Criteria like query. For example, you might have a List of Car objects and you want to return all cars made during the 1960s, with a license plate that starts with AZ, ordered by the name of the car model.

我知道 JoSQL ，有人使用过

推荐答案

我使用了 Apache Commons JXPath 。它允许您将XPath表达式应用于Java中的对象图。

I have used Apache Commons JXPath in a production application. It allows you to apply XPath expressions to graphs of objects in Java.

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