您设计的派生类必须有一个名为definition（可以不修改此名）的嵌套的模板类/结构。
The derived class that you design must have a nested template class/structure named definition (you may not change this name). The definition class has the following properties
这也就是说在不修改任何表信息情况下就可以修改模式的用法。
This means that modifications to schema usage can be made without modifying any table information.
这种类型的操作不修改资源，因此可以调用多次并获得相同的结果。
This type of operation doesn't modify the resource and can therefore be called many times with the same results.
只要不修改SQL中的数据或不会在DB2引擎以外执行任何操作，则可以使用DB 2允许的任何表达式。
It can be any expression allowed in DB2 as long as it does not modify any data in SQL or perform any action outside the scope of the DB2 engine.
您可以在不修改Dojo代码的情况下修改导航栏。
You can modify the navigation bar without making changes to Dojo.
如果我们认为大多数项目应这个项目一样使用当前的过程，并且只有少数项目希望对过程进行定制，我们可以在不修改的情况下将其导出到PortfolioManager中。
If we believe that most projects should be using this project as is and only a minority of those projects will want to customize it, we can export it to Portfolio Manager without modification.
如果你的filter不修改数据，那么应当返回原始数据，这样，如果必要，其余的插件可以继续修改数据。
If the data is not modified by your filter, then the original data must be returned so that subsequent plugins can continue to modify the value if necessary.
例如，考虑这样的事实，用很少或无系统开销就可以相对不修改地将XML数据发送到XML - RPC调用。
Consider, for example, the fact that your XML data can be sent, relatively unchanged, into an XML-RPC call with little to no overhead.
在不得不修改概念性或逻辑数据模型时，可以轻松地重新创建依赖的模型，让所有JPA实体保持同步。
When you have to change the conceptual or logical data model, you can easily recreate the dependent models and have all your JPA entities in sync.
不修改现有接口的定义，我们就可以通过添加新接口来增加新功能。
Instead of modifying the definition of an existing interface, we could add new features by adding new interfaces.
反过来也就是说，如果一个脚本是只读的，不修改数据设置的，它就可以自由地调用这些命令。
This means that if a script is read-only and does not modify the data set it is free to call those commands.
该机制主要利用字节码重写技术，在不修改主动代码的前提下可以实现服务的强制性终止和针对主体的CPU、内存以及网络带宽的资源监控。
By means of byte code rewritten, the mechanism can forcibly unload the given service and can monitor main CPU, memory and networking bandwidth resources without modifying any of original code.
该机制主要利用字节码重写技术，在不修改主动代码的前提下可以实现服务的强制性终止和针对主体的CPU、内存以及网络带宽的资源监控。
By means of byte code rewritten, the mechanism can forcibly unload the given service and can monitor main CPU, memory and networking bandwidth resources without modifying any of original code.
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