如何在类级别约束之前验证字段级别约束？ [英] How to validate field level constraint before class level constraint?

问题描述

我有一个课程：

@ColumnNameUnique(groups = CreateTableChecks.class)
public class Table {    
    @Valid
    @NotEmpty(groups = CreateTableChecks.class)
    private List<Measure> measures; 
}

• 班级约束 @ColumnNameUnique（groups = CreateTableChecks.class）总是首先运行，之后是字段级约束 @NoEmpty（groups = CreateTableChecks.class）运行。

  • The class level constraint @ColumnNameUnique(groups = CreateTableChecks.class) always runs first, after that the field level constraint @NotEmpty(groups = CreateTableChecks.class) runs.

    无论如何强制字段级约束 @NoEmpty（groups = CreateTableChecks.class）先运行？

    Is there anyway to force the the field level constraint @NotEmpty(groups = CreateTableChecks.class) runs first?

    推荐答案

    你需要使用 @GroupSequence 和重新定义默认组序列的。如果没有这个，组中的验证顺序就不会被定义，它可以是任何顺序（在你的情况下，总是先执行类级别约束不是必须的）。这样的事情应该有效：

    You need to use @GroupSequence and re-define the default group sequence. Without this the validation order within a group is not defined and it can be in any order (that the class level constraint in your case is always executed first is not a must). Something like this should work:

    @GroupSequence({FieldChecks.class, ClassChecks.class})
    @ColumnNameUnique(groups = ClassChecks.class)
    public class Table {    
        @Valid
        @NotEmpty(groups = FieldChecks.class)
        private List<Measure> measures; 
    }
    

    现在，如果 @Default group得到验证，首先是类级别约束，然后是字段级别约束。

    Now, if the @Default group gets validated, first the class level constraints and then the field level ones will be validated.

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