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vRules4j--Object Oriented Java Object Validation/Decision Rule engin
vRules4j--The best completely Object Oriented Java Object Validation/Decision Ruleengine,which is born for taking over all validation responsibility in java business-enterprise industry and looking forward to providing Perfect/Lightweight solution.
@rules is not a ruleengine! @rules is a rules API that uses annotations to define rules where they should be defined when programming an application, on entity classes, in this case on POJO's.