play.data.validation
注释类型 Unique

@Retention(value=RUNTIME)
@Target(value={FIELD,PARAMETER})
@Constraint(checkWith=UniqueCheck.class)
public @interface Unique

Check that a field or or field in a context is unique. You set the context as a list (comma, semicolon or space separated) of properties of your GenericModel. Message key: validation.unique $1: field name $2: properties which define a context in which the column must be unique

可选元素摘要

java.lang.String	message
java.lang.String	value

value

public abstract java.lang.String value

默认值：

""

message

public abstract java.lang.String message

默认值：

"validation.unique"