pointcut
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例句
If you develop with aspects, however, you could represent such behavior as advice, applied to any operation that matches a certain pointcut.
但是如果用方面开发，那么就可以将这些行为表示为建议（advice），应用到所有匹配某个切点（pointcut）的操作。
You know that the Website is not supposed to be highlighted, so you rewrite the pointcut to exclude that unintended match.
您知道这个Website不应该突出显示，因此重新编写这个切点以排除不需要的匹配。
You can consider the pointcut to be a query of your code that returns a set of join points.
你可以把切入点想象成对你的编码的一个查询，用它来返回一系列的连接点。
The sophistication of the pointcut language is a differentiating factor among the various AOP systems.
切入点语言的复杂程度是不同AOP系统的一种区分元素。
A well-built pointcut is less likely to stop matching the required locations after changes are made to the code.
在更改代码之后，构建良好的切入点不太可能停止匹配所需的位置。
The power of the AspectJ pointcut expression language is not merely about allowing sophisticated constructs.
AspectJ切入点表达式语言的强大不仅仅是关于复杂的结构。
We do not believe in reinventing the wheel, and defining our own pointcut expression language was unjustifiable.
我们不相信重新发明的轮子，而且定义我们自己的切入点表达语言是不合理的。
The default method signature for an advice is to take a single parameter, which provides information about the pointcut being intercepted.
advice的默认方法签名接受一个参数，该参数提供关于中断的pointcut的信息。
Advice targeted with this pointcut can never be invoked inappropriately, with an argument of the wrong type, or no matching argument.
这个切入点的通知目标永远不可能被错误调用，通过错误类型的参数，或者没有匹配的参数。
More powerful yet is the ability to apply any arbitrary (but applicable) interceptor to any defined pointcut.
然而它更强大的能力是可以把任何（但可用的）截取程序应用到定义的切入点。
In other words, this first version of the system leaves us with N-to-one coupling between program elements and the pointcut.
换句话说，系统的第一个版本使我们得到程序元素与切入点之间的一个N对一的耦合。
An advice is a method in an aspect class that's used as the "something different" to be done at a pointcut.
advice是aspect类中的一个方法，在pointcut处用它来做“某些不同的事件”。
In AspectJ, these points are called point cuts, and the code you execute at point cuts is called advice.
在AspectJ中，这些地方都称为pointcut，在pointcut处所执行的代码称为advice。
Annotation, which can be used to annotate advice to suppress unchecked warnings arising from pointcut matching.
注释，可以用它对建议进行注释，以抑制从切入点匹配发生的未检测警告。
A sub-aspect needs to provide this information, in the form of a pointcut.
一个子方面需要提供这种信息，也就是pointcut的形式。
A pointcut, then, is a language construct that picks out a set of join points based on defined criteria.
那么，Pointcut就是一种语言构造，这种构造根据已定义的标准挑选一组joinpoint。
Different variations of that theme can be used where appropriate without having to write complex pointcut code.
可以在适当的地方使用不同的主题变量，不必编写复杂的切入点代码。
Pointcut support for composition allows you to combine simple pointcuts into more complicated ones.
切入点支持复合（composition），这就允许把简单的切入点组合成更复杂的切入点。
Advice to pointcut bindings cannot be controlled by the developer.
通知到切入点的绑定不能由开发人员控制。
Later in the article, I rewrite the pointcut as I demonstrate some of the testing patterns.
在本文的后面，我将重写这个切点以展示一些测试模式。
execution is a primitive pointcut (just as int is a primitive Java type).
execution是一个原始的Pointcut（就象int是一种原始的Java类型）。
The advice mechanism specifies what action to take when a pointcut is matched in the execution of the program.
通知（advice）机制指定在程序执行过程中遇到匹配的切入点时应当采取什么行动。
The pointcut expression, if you can write one, will be complex and often unstable with respect to the system evolution.
如果可以编写一个切入点表达式，那么它会随着系统的发展而变得复杂，并且通常不很稳定。
The pointcut required in these situations can get unwieldy, as you can see for yourself in the following example.
在这种情况下，所需要的切入点可能会变得很难处理，从下面的例子中就可看到。
They rely on a pointcut rather than a type, either assuming nothing or deferring a context specification to a concrete subaspect.
依赖于切入点而不是类型，要么不作任何假定，要么将上下文规格推迟到具体的子方面中。
The project using the aspect would then extend it with a pointcut defining the appropriate scope for the aspect to apply to.
然后，使用方面的项目就可以用切入点扩展它，切入点定义了将要应用的方面的适当范围。
Rather than enumerating each method as I did in Listing 1, you write what you hope will be a more robust pointcut.
不用像在清单1中那样枚举每一个方法，可以说明想要找的是一个更健壮的切点。
This means that only calls to the distance method in such an object are selected by this pointcut.
这意味着在这样一个对象中这个切入点只会选择对距离程序的调用。
Instead of extending an abstract aspect, this time you write your mock target so that it matches a pointcut on the aspect to be tested.
这次不是扩展一个抽象类，而是编写mock目标，以使它匹配要测试的方面上的一个切点。
The pointcut is an expression that describes a set of join points.
切入点是一个用来描述一套连接点的表达式。
You then break the system into several parts such that you can find a good pointcut expression for each subsystem.
然后将系统分解为几部分，使得每个子系统都可以有好的切入点表达式。
Advice invocation overhead at run time, needed to determine pointcut matching.
运行时的通知调用开销，需要决定切入点匹配。
You can test that the pointcut is correct by checking whether the aspect advises the mock target.
可以通过检查方面是否建议了mock目标来测试切点是否正确。
The decision usually comes down to whether it makes sense to externalize the pointcut expression from Java code altogether.
决定通常取决于使切入点描述完全从Java代码具体出来是否有意义。
Fortunately, AspectWerkz provides easy ways of accessing information about the pointcut being intercepted.
幸运的是，AspectWerkz提供了访问中断的pointcut的信息的方便方法。
A pointcut specifies the properties of a given element of a program.
切入点指定程序给定元素的属性。
In a future version of AJDT, a "uses pointcut" relationship could be exposed to facilitate this connection.
在AJDT的未来版本中，可能会公开“使用切入点（usespointcut）”来帮助实现这个连接。
This would most likely involve an abstract aspect with an abstract pointcut.
这很有可能涉及一个带有抽象切入点的抽象方面。
By using the args pointcut designator, you are able to expose the exception instance and use it in your reporting.
通过使用argsPointcut指示器，你可以找到异常实例，还可以在你的报告中使用它。
But if someone later adds an extra parameter to the method, the pointcut will no longer match.
但是，如果后来有人向该方法中添加了其他参数，切入点就不再匹配。
