RE: [Springframework-developer] declarative rules-based bean validator w/ attributes in sandbox

[<sam...@ma...>]

Excellent, thanks Keith. On the subject of the sandbox, is there a build
directive to buils the sandbox code, or should I just overwrite the src with the
sandbox code and rebuild?

sam

Quoting Keith Donald <kd...@cs...>:

> I checked in a "BeanValidatorBuilder" class in the sandbox under
> validation.support that allows you to declaratively assign
> PropertyValidationRules to bean properties via Spring-IoC, through a
> scripting environment such as Groovy/Beanshell, or programatically in =
> plain
> java.  This is in addition to support for defining validation rules on =
> beans
> via source markup.
> 
> Here's an example on how to use it:
> 
> Spring IoC configuration
> 
> 	<bean id=3D"validatorBuilder"
> class=3D"org.springframework.validation.support.ValidatorBuilder"/>
> 		<constructor-arg index=3D"0">
> 			<description>The validated bean type (class or
> interface) aka 'root entity'</description>
> 			<value>org.springframework.validation.Pet</value>
> 		</constructor-arg>
> 		<map>
> 			<description>
> 				A map of property name keys to one or more
> governing property validation rules.
> 				Nested bean property names from the 'root
> entity' are supported.
> 				Rule instances may be reused across
> properties if desired.
> 			</description>
> 			<entry key=3D"name.lastName">
> 				<value><bean
> class=3D"org.springframework.validation.rules.Required"/></value>
> 			</entry>
> 			<entry key=3D"favoriteToy">
> 				<value>
> 					<set>
> 						<bean
> class=3D"org.springframework.validation.rules.Required"/>
> 						<bean
> class=3D"org.springframework.validation.rules.MaxLength">
> =09
> <constructor-arg>25</constructor-arg>
> 
> 						</bean>
> 					</set>
> 				</value>
> 			</entry>
> 		</map>
> 	</bean>
> 
> Java
> 
>         BeanValidatorBuilder builder =3D new =
> BeanValidatorBuilder(Pet.class);
> 
>         builder.setPropertyValidator("name.lastName", new Required());
> 
>         Set toyRules =3D new HashSet();
>         toyRules.add(new Required());
>         toyRules.add(new MaxLength(255));
>         builder.setPropertyValidator("favoriteToy", toyRules);
> 
> Keith

sam
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