BindingErrorProcessor (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.validation
Interface BindingErrorProcessor

All Known Implementing Classes:: DefaultBindingErrorProcessor

public interface BindingErrorProcessor

Strategy for processing DataBinder's missing field errors, and for translating a PropertyAccessException to a FieldError.

The error processor is pluggable so you can treat errors differently if you want to. A default implementation is provided for typical needs.

Note: As of Spring 2.0, this interface operates on a given BindingResult, to be compatible with any binding strategy (bean property, direct field access, etc). It can still receive a BindException as argument (since a BindException implements the BindingResult interface as well) but no longer operates on it directly.

Since:: 1.2
Author:: Alef Arendsen, Juergen Hoeller
See Also:: DataBinder.setBindingErrorProcessor(org.springframework.validation.BindingErrorProcessor), DefaultBindingErrorProcessor, BindingResult, BindException

Method Summary

void processMissingFieldError(String missingField, BindingResult bindingResult)
Apply the missing field error to the given BindException.

void processPropertyAccessException(PropertyAccessException ex, BindingResult bindingResult)
Translate the given PropertyAccessException to an appropriate error registered on the given Errors instance.

Method Summary
`void`	`processMissingFieldError(String missingField, BindingResult bindingResult)` Apply the missing field error to the given BindException.
`void`	`processPropertyAccessException(PropertyAccessException ex, BindingResult bindingResult)` Translate the given `PropertyAccessException` to an appropriate error registered on the given `Errors` instance.

Method Detail

processMissingFieldError

void processMissingFieldError(String missingField,
                              BindingResult bindingResult)

Apply the missing field error to the given BindException.

Usually, a field error is created for a missing required field.

Parameters:: missingField - the field that was missing during binding; bindingResult - the errors object to add the error(s) to. You can add more than just one error or maybe even ignore it. The BindingResult object features convenience utils such as a resolveMessageCodes method to resolve an error code.
See Also:: AbstractBindingResult.addError(org.springframework.validation.ObjectError), AbstractBindingResult.resolveMessageCodes(java.lang.String)

processPropertyAccessException

void processPropertyAccessException(PropertyAccessException ex,
                                    BindingResult bindingResult)

Translate the given PropertyAccessException to an appropriate error registered on the given Errors instance.

Note that two error types are available: FieldError and ObjectError. Usually, field errors are created, but in certain situations one might want to create a global ObjectError instead.

Parameters:: ex - the PropertyAccessException to translate; bindingResult - the errors object to add the error(s) to. You can add more than just one error or maybe even ignore it. The BindingResult object features convenience utils such as a resolveMessageCodes method to resolve an error code.
See Also:: Errors, FieldError, ObjectError, MessageCodesResolver, AbstractBindingResult.addError(org.springframework.validation.ObjectError), AbstractBindingResult.resolveMessageCodes(java.lang.String)