[hibernate-issues] [Hibernate-JIRA] Commented: (BVAL-36) Validation of method parameters and returned values

[Emmanuel Bernard (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/BVAL-36?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31564#action_31564 ] 

Emmanuel Bernard commented on BVAL-36:
--------------------------------------

Added to the spec as an Appendix for now

> Validation of method parameters and returned values
> ---------------------------------------------------
>
>                 Key: BVAL-36
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/BVAL-36
>             Project: Bean Validation
>          Issue Type: New Feature
>          Components: spec-general
>            Reporter: Emmanuel Bernard
>            Assignee: Emmanuel Bernard
>
> The goal is to expose the necessary APIs to validate method parameters and returned type. This API can typically be used by an interceptor framework.
> Validator {
>     List<IC> validateParameters(Method, Object[] parameterValues);
>     List<IC> validateParameter(Method, Object parameterValue, int parameterIndex);
>     List<IC> validateReturnedValue(Method, Object returnedValue);
>     List<IC> validateParameters(Constructor, Object[] parameterValues);
>     List<IC> validateParameter(Constructor, Object parameterValue, int parameterIndex);
> }
> Metadata
> Validator {
>     BeanDescriptor getConstraintsForBean()
>     PropertyDescriptor getConstraintsForProperty(String propertyName);
>     MethodDescriptor getConstraintsForMethod(Method);
>     MethodDescriptor getConstraintsForConstructor(Constructor);
>     String[] getValidatedProperties();
>     Method[] getValidatedMethods();
>     Constructor[] getValidatedConstructors();
> }
> ElementDescriptor {
>     ElementType getElementType();
>     Class getType();
>     List<ConstraintDescriptor> getConstraintDescriptors();
> }
> PropertyDescriptor extends ElementDescriptor {
>     boolean isCascaded();
>     String getPropertyPath();
> }
> ParameterDescriptor extends ElementDescriptor {
>     boolean isCascaded();
>     int getIndex();
> }
> BeanDescriptor extends ElementDescriptor {
> }
> MethodDescriptor extends ElementDescriptor {
>     List<ParameterDescriptor> getParameterDescriptors(); //index aligned
>     boolean isCascaded();
> }
> ConstructorDescriptor extends ElementDescriptor {
>     List<ParameterDescriptor> getParameterDescriptors(); //index aligned
> }
> How to read parameter annotations
> Class<?> parameterTypes = method.getParameterTypes()
> Annotation[][] parameterAnnotations = method.getParameterAnnotations()

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