and apply to numeric values and validate that they are strictly positive, or positive including 0.can be applied only to text values and validates that the property is not null or whitespace.validates that the property is not null or empty can be applied to String, Collection, Map or Array values.This is the message that will usually be rendered when the value of the respective property fails validation.Īnd some additional annotations that can be found in the JSR:

Some annotations accept additional attributes, but the message attribute is common to all of them. validates that the annotated property is a valid email address.validates that the annotated property has a value no larger than the value attribute.validates that the annotated property has a value no smaller than the value attribute.validates that the annotated property value has a size between the attributes min and max can be applied to String, Collection, Map, and array properties.validates that the annotated property value is true.validates that the annotated property value is not null.Private String = 18, message = 'Age should not be less than = 150, message = 'Age should not be greater than 150')Īll of the annotations used in the example are standard JSR annotations: = 'About Me must be between 10 and 200 characters') Private String boolean = 10, max = 200, message Public class User = 'Name cannot be null') Here, we'll take a User bean and work on adding some simple validation to it: import

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