•@NotNull validates that the annotated property value is not null.

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•@Size 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.

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•@Min validates that the annotated property has a value no smaller than the value

attribute.

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•@Max validates that the annotated property has a value no larger than the value

attribute.

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•@Email validates that the annotated property is a valid email address.

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•@NotEmpty validates that the property is not null or empty; can be applied to String,

Collection, Map or Array values.

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•@NotBlank can be applied only to text values and validates that the property is not

null or whitespace.