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I once came across a validation framework for java, where you wrote one method that protected the integrity of the data-type and any CRUD operations on that data-type automatically called this method.
Does anyone know what this framework is? I simply want to avoid repetitive validation on every CRUD method attached to a data-type.
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The Bean Validation API is a Java specification which is used to apply constraints on object model via annotations. Here, we can validate a length, number, regular expression, etc. Apart from that, we can also provide custom validations. As Bean Validation API is just a specification, it requires an implementation.
The validation framework uses Spring's powerful expression evaluation engine to evaluate both validation rules and applicability conditions for the validator. As such, any valid Spring expression can be specified within the test and when attributes of any validator.
The @Valid annotation ensures the validation of the whole object. Importantly, it performs the validation of the whole object graph. However, this creates issues for scenarios needing only partial validation. On the other hand, we can use @Validated for group validation, including the above partial validation.
Here's a huge list of Java Validation Libraries / Frameworks - http://java-source.net/open-source/validation
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Apache Commons has a validation framework.
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