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http://opensource.atlassian.com/projects/hibernate/browse/HV-533?page=com...
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Devesh Parekh commented on HV-533:
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Fair enough. How about this: it would be very useful to be able to specify a negative
number for fraction. For example, if you have a Money bean with a field for micros, it
would be useful to say that values representing fractions of a cent are not valid without
having to write a custom ConstraintValidator.
To allow this, the documentation should be cleared up to specify behavior for negative
values of @Digits.fraction (similar behavior to JPA's @Column.scale), and the
implementation should be fixed to deal with negative values. Alternatively, if we
don't want to allow negative values, the documentation should clearly state that. (I
dislike this alternative.)
@Digits.fraction should allow negative values
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Key: HV-533
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HV-533
Project: Hibernate Validator
Issue Type: Bug
Components: documentation, validators
Affects Versions: 4.2.0.Final
Reporter: Devesh Parekh
There are really two bugs here:
1. The documentation for @Digits.fraction does not concretely say what should happen for
negative values, but the 1.0 final spec defines the correct behavior on page 133 with the
equation @Column.precision = @Digits.integer + @Digits.fraction. This suggests that
@Digits.fraction should be negative when @Column.scale is negative.
2. The implementation throws an IllegalArgumentException when @Digits.fraction is
negative.
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