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Usages of AssertTrue.List (multipe AssertTrue)

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2

1

I know the usages of AssertTrue, usually on methods (@AssertTrue), with optional message as:

@AssertTrue(message="specificDate.isDateTimeValid.AssertTrue")

But what is the usages of AssertTrue.List?

Defines several AssertTrue annotations on the same element.

Because we can check True with 1 annotation, why would we need such a list? I didn't find any usage of adding multiple AssertTrue annotations on method/field

Is it just added to satisfy common practice/pattern/convention?

java list bean-validation assertion

share|improve this question

asked Mar 25 at 5:30

user7294900user7294900

26.7k123870

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If you use various @AssertTrue with different javax.validation.constraints.AssertTrue.payload() metadata, it makes sense to have multiple of them defined in one constraint.
  
  – ernest_k
  Mar 25 at 5:52
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @ernest_k can you answer with example?
  
  – user7294900
  Mar 25 at 5:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Haha, I suppose I was making a use case in my mind. After thinking about it, I can only come up with some artificial use cases for this. One technically valid use case is @AssertTrue(message="cde", groups=Group1.class) @AssertTrue(message="abc", groups=Group2.class) where you call validate(myBean, Group1.class) in one case and with Group2.class in another. But again, it's the same isValid() method being called, which poses the question of why not have 2 methods with two distinct annotations in the first place (different logic in methods seems more sensible as a use case)...
  
  – ernest_k
  Mar 25 at 6:47
  

  
  
  
  

add a comment | 

2

1

I know the usages of AssertTrue, usually on methods (@AssertTrue), with optional message as:

@AssertTrue(message="specificDate.isDateTimeValid.AssertTrue")

But what is the usages of AssertTrue.List?

Defines several AssertTrue annotations on the same element.

Because we can check True with 1 annotation, why would we need such a list? I didn't find any usage of adding multiple AssertTrue annotations on method/field

Is it just added to satisfy common practice/pattern/convention?

java list bean-validation assertion

share|improve this question

asked Mar 25 at 5:30

user7294900user7294900

26.7k123870

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If you use various @AssertTrue with different javax.validation.constraints.AssertTrue.payload() metadata, it makes sense to have multiple of them defined in one constraint.
  
  – ernest_k
  Mar 25 at 5:52
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @ernest_k can you answer with example?
  
  – user7294900
  Mar 25 at 5:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Haha, I suppose I was making a use case in my mind. After thinking about it, I can only come up with some artificial use cases for this. One technically valid use case is @AssertTrue(message="cde", groups=Group1.class) @AssertTrue(message="abc", groups=Group2.class) where you call validate(myBean, Group1.class) in one case and with Group2.class in another. But again, it's the same isValid() method being called, which poses the question of why not have 2 methods with two distinct annotations in the first place (different logic in methods seems more sensible as a use case)...
  
  – ernest_k
  Mar 25 at 6:47
  

  
  
  
  

add a comment | 

I know the usages of AssertTrue, usually on methods (@AssertTrue), with optional message as:

@AssertTrue(message="specificDate.isDateTimeValid.AssertTrue")

But what is the usages of AssertTrue.List?

Defines several AssertTrue annotations on the same element.

Because we can check True with 1 annotation, why would we need such a list? I didn't find any usage of adding multiple AssertTrue annotations on method/field

Is it just added to satisfy common practice/pattern/convention?

java list bean-validation assertion

share|improve this question

asked Mar 25 at 5:30

user7294900user7294900

26.7k123870

share|improve this question

asked Mar 25 at 5:30

user7294900user7294900

26.7k123870

share|improve this question

asked Mar 25 at 5:30

user7294900user7294900

26.7k123870

asked Mar 25 at 5:30

user7294900user7294900

26.7k123870

asked Mar 25 at 5:30

user7294900user7294900

26.7k123870