英文:
When validating collections, is there a way to know the position a bean being validated from within custom constraint validator?
问题
让我们看一下下面的用例。
我有一个带有其他一些bean的集合的bean作为其属性之一：
public class MyBean {
...
@Valid
private NestedBean[] nestedBeans;
...
}
嵌套的bean具有如下的自定义类级约束：
@SomeConstraint
public class NestedBean {
...
}
而且我们有一个验证器来验证这个自定义约束：
public SomeConstraintValidator implements ConstraintValidator<SomeConstraint, NestedBean> {
...
public boolean isValid(NestedBean bean, ConstraintValidatorContext context) {
...
}
}
有没有办法知道当前正在进行验证的 "bean" 对象的位置，以便我们可以显示错误消息，例如：
"第三个嵌套bean无效..."
或者有其他的方法可以实现这个吗？
Hibernate的ConstraintValidationContext实现保存了这些详细信息的属性路径，但不是公共API。
英文:
Lets take this below use case.
I have bean with collection of some other bean as one of its properties:
public class MyBean {
...
@Valid
private NestedBean[] nestedBeans;
...
}
The nested bean has a custom class level constraint like this:
@SomeConstraint
public class NestedBean {
...
}
And we have a validator that validates this custom constraint:
public SomeConstraintValidator implements ConstraintValidator<SomeConstraint, NestedBean> {
...
public boolean isValid(NestedBean bean, ConstraintValidatorContext context) {
...
}
}
Is there a way to know the position of the current "bean" object that is getting validated, so that we can show error messages like:
"The third nested bean is invalid...."
Or is there any other way to achieve this?
The Hibernate's ConstraintValidationContext implementation hold property path with these details, but is not a public API.
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