@Digits (jakarta.validation.constraints)

The @jakarta.validation.constraints.Digits annotation is recognized by Apache Causeway as a means to specify the precision for properties and action parameters of type java.math.BigDecimal.

For example:

import jakarta.persistence.Column;
import jakarta.validation.constraints.Digits;
import lombok.Getter;

@Column(
    scale=2                                              (1)
)
@Digits(
    integer=10,
    fraction=2                                           (2)
)
@Getter
public void setCost(final BigDecimal cost) {
    this.cost = cost!=null
        ? cost.setScale(2, BigDecimal.ROUND_HALF_EVEN)   (3)
        :null;
}

1	the ˜@Column#scale attribute must be …
2	… consistent with `@Digits#fraction()`
3	the correct idiom when setting a new value is to normalized to the correct scale