grails - grails域约束不是像文档建议那样在运行时映射

Question

文档说，根据版本，访问Domain.constraints或Domain.constrainedProperties应该提供键值映射。

https://grails.github.io/grails2-doc/2.5.4/ref/Domain%20Classes/constraints.html

At runtime the static constraints property is a Map such that the keys in the Map are property names and the values associated with the keys are instances of ConstrainedProperty:

但是，使用2.5+时，在运行时访问constraints属性不会给出映射，而是一个闭包，并且我无法访问ConstrainedProperty实例。

我尝试使用grails类utils来访问静态属性

GrailsClassUtils.getStaticFieldValue(Domain,"constraints")//this is still a closure

GrailsClassUtils.getStaticFieldValue(Domain,"constrainedProperties")//null, this property doesn't exist below version 3.0

Answer 1

像文档中的示例一样，属性访问对我不起作用

Domain.constraints //returns closure

但是使用方法getter确实

Domain.getConstraints() //returns the map