3c047788_ter_2__Validation_step_by_step__Use
[Annotation] @DecimalMin [Supported data types] BigDecimal, BigInteger, String, byte, short, int, long and the respective wrappers of the primitive types. Additionally supported by HV: any sub-type of Number. [Hibernate metadata impact] none [Use] 
The annotated element must be a number whose value must be higher or equal to the specified minimum. The parameter value is the string representation of the min value according to the BigDecimal string representation.
Chapter 2. Validation step by step
Use