Package org.springframework.validation.beanvalidation

Interface MethodValidator

All Known Implementing Classes:

DefaultMethodValidator, HandlerMethodValidator

public interface MethodValidator

Contract to apply method validation without directly using MethodValidationAdapter. For use in components where Jakarta Bean Validation is an optional dependency and may or may not be present on the classpath. If that's not a concern, use MethodValidationAdapter directly.

Since:

6.1

Author:

Rossen Stoyanchev

See Also:

• DefaultMethodValidator

Method Summary

Modifier and Type	Method	Description
Class<?>[]	determineValidationGroups(Object target, Method method)	Use this method determine the validation groups to pass into validateArguments(Object, Method, MethodParameter[], Object[], Class[]) and validateReturnValue(Object, Method, MethodParameter, Object, Class[]).
void	validateArguments(Object target, Method method, MethodParameter[] parameters, Object[] arguments, Class<?>[] groups)	Validate the given method arguments and return the result of validation.
void	validateReturnValue(Object target, Method method, MethodParameter returnType, Object returnValue, Class<?>[] groups)	Validate the given return value and return the result of validation.

Method Details

determineValidationGroups

Class<?>[] determineValidationGroups(Object target,
 Method method)

Use this method determine the validation groups to pass into validateArguments(Object, Method, MethodParameter[], Object[], Class[]) and validateReturnValue(Object, Method, MethodParameter, Object, Class[]).

Parameters:

target - the target Object

method - the target method

Returns:

the applicable validation groups as a Class array

See Also:

• MethodValidationAdapter.determineValidationGroups(Object, Method)

validateArguments

void validateArguments(Object target,
 Method method,
 @Nullable
 MethodParameter[] parameters,
 Object[] arguments,
 Class<?>[] groups)

Validate the given method arguments and return the result of validation.

Parameters:

target - the target Object

method - the target method

parameters - the parameters, if already created and available

arguments - the candidate argument values to validate

groups - groups for validation determined via determineValidationGroups(Object, Method)

Throws:

MethodValidationException - should be raised in case of validation errors unless the implementation handles those errors otherwise (e.g. by injecting BindingResult into the method).

validateReturnValue

void validateReturnValue(Object target,
 Method method,
 @Nullable
 MethodParameter returnType,
 @Nullable
 Object returnValue,
 Class<?>[] groups)

Validate the given return value and return the result of validation.

Parameters:

target - the target Object

method - the target method

returnType - the return parameter, if already created and available

returnValue - the return value to validate

groups - groups for validation determined via determineValidationGroups(Object, Method)

Throws:

MethodValidationException - in case of validation errors