org.springframework.validation
Class AbstractBindingResult

java.lang.Object
  org.springframework.validation.AbstractBindingResult

All Implemented Interfaces:

Serializable, BindingResult, Errors

Direct Known Subclasses:

AbstractPropertyBindingResult, MapBindingResult

public abstract class AbstractBindingResult
extends Object
implements BindingResult, Serializable

Abstract implementation of the BindingResult interface and its super-interface Errors. Encapsulates common management of ObjectErrors and FieldErrors.

Since:

2.0

Author:

Juergen Hoeller, Rob Harrop

See Also:

Errors, Serialized Form

Field Summary

Fields inherited from interface org.springframework.validation.BindingResult

MODEL_KEY_PREFIX

Fields inherited from interface org.springframework.validation.Errors

NESTED_PATH_SEPARATOR

Constructor Summary

protected

AbstractBindingResult(String objectName) Create a new AbstractBindingResult instance.

Method Summary

void	addAllErrors(Errors errors) Add all errors from the given Errors instance to this Errors instance.
void	addError(ObjectError error) Add a custom ObjectError or FieldError to the errors list.
protected String	canonicalFieldName(String field) Determine the canonical field name for the given field.
protected void	doSetNestedPath(String nestedPath) Actually set the nested path.
boolean	equals(Object other)
protected String	fixedField(String field) Transform the given field into its full path, regarding the nested path of this instance.
protected Object	formatFieldValue(String field, Object value) Format the given value for the specified field.
protected abstract Object	getActualFieldValue(String field) Extract the actual field value for the given field.
List	getAllErrors() Get all errors, both global and field ones.
int	getErrorCount() Return the total number of errors.
FieldError	getFieldError() Get the first error associated with a field, if any.
FieldError	getFieldError(String field) Get the first error associated with the given field, if any.
int	getFieldErrorCount() Return the number of errors associated with a field.
int	getFieldErrorCount(String field) Return the number of errors associated with the given field.
List	getFieldErrors() Get all errors associated with a field.
List	getFieldErrors(String field) Get all errors associated with the given field.
Class	getFieldType(String field) This default implementation determines the type based on the actual field value, if any.
Object	getFieldValue(String field) Return the current value of the given field, either the current bean property value or a rejected update from the last binding.
ObjectError	getGlobalError() Get the first global error, if any.
int	getGlobalErrorCount() Return the number of global errors.
List	getGlobalErrors() Get all global errors.
MessageCodesResolver	getMessageCodesResolver() Return the strategy to use for resolving errors into message codes.
Map	getModel() Return a model Map for the obtained state, exposing an Errors instance as 'MODEL_KEY_PREFIX + objectName' and the object itself.
String	getNestedPath() Return the current nested path of this Errors object.
String	getObjectName() Return the name of the bound root object.
PropertyEditorRegistry	getPropertyEditorRegistry() This implementation throws an UnsupportedOperationException.
String[]	getSuppressedFields() Return the list of fields that were suppressed during the bind process.
abstract Object	getTarget() Return the wrapped target object.
boolean	hasErrors() Return if there were any errors.
boolean	hasFieldErrors() Are there any field errors?
boolean	hasFieldErrors(String field) Are there any errors associated with the given field?
boolean	hasGlobalErrors() Are there any global errors?
int	hashCode()
protected boolean	isMatchingFieldError(String field, FieldError fieldError) Check whether the given FieldError matches the given field.
void	popNestedPath() Pop the former nested path from the nested path stack.
void	pushNestedPath(String subPath) Push the given sub path onto the nested path stack.
void	recordSuppressedField(String fieldName) Mark the specified disallowed field as suppressed.
void	reject(String errorCode) Register a global error for the entire target object, using the given error description.
void	reject(String errorCode, Object[] errorArgs, String defaultMessage) Register a global error for the entire target object, using the given error description.
void	reject(String errorCode, String defaultMessage) Register a global error for the entire target object, using the given error description.
void	rejectValue(String field, String errorCode) Register a field error for the specified field of the current object (respecting the current nested path, if any), using the given error description.
void	rejectValue(String field, String errorCode, Object[] errorArgs, String defaultMessage) Register a field error for the specified field of the current object (respecting the current nested path, if any), using the given error description.
void	rejectValue(String field, String errorCode, String defaultMessage) Register a field error for the specified field of the current object (respecting the current nested path, if any), using the given error description.
String[]	resolveMessageCodes(String errorCode) Resolve the given error code into message codes.
String[]	resolveMessageCodes(String errorCode, String field) Resolve the given error code into message codes for the given field.
void	setMessageCodesResolver(MessageCodesResolver messageCodesResolver) Set the strategy to use for resolving errors into message codes.
void	setNestedPath(String nestedPath) Allow context to be changed so that standard validators can validate subtrees.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AbstractBindingResult

protected AbstractBindingResult(String objectName)

Create a new AbstractBindingResult instance.

Parameters:

objectName - the name of the target object

See Also:

DefaultMessageCodesResolver

Method Detail

setMessageCodesResolver

public void setMessageCodesResolver(MessageCodesResolver messageCodesResolver)

Set the strategy to use for resolving errors into message codes. Default is DefaultMessageCodesResolver.

See Also:

DefaultMessageCodesResolver

getMessageCodesResolver

public MessageCodesResolver getMessageCodesResolver()

Return the strategy to use for resolving errors into message codes.

getObjectName

public String getObjectName()

Description copied from interface: Errors

Return the name of the bound root object.

Specified by:

getObjectName in interface Errors

setNestedPath

public void setNestedPath(String nestedPath)

Description copied from interface: Errors

Allow context to be changed so that standard validators can validate subtrees. Reject calls prepend the given path to the field names.

For example, an address validator could validate the subobject "address" of a customer object.

Specified by:

setNestedPath in interface Errors

Parameters:

nestedPath - nested path within this object, e.g. "address" (defaults to "", null is also acceptable). Can end with a dot: both "address" and "address." are valid.

getNestedPath

public String getNestedPath()

Description copied from interface: Errors

Return the current nested path of this Errors object.

Returns a nested path with a dot, i.e. "address.", for easy building of concatenated paths. Default is an empty String.

Specified by:

getNestedPath in interface Errors

pushNestedPath

public void pushNestedPath(String subPath)

Description copied from interface: Errors

Push the given sub path onto the nested path stack.

A Errors.popNestedPath() call will reset the original nested path before the corresponding pushNestedPath(String) call.

Using the nested path stack allows to set temporary nested paths for subobjects without having to worry about a temporary path holder.

For example: current path "spouse.", pushNestedPath("child") -> result path "spouse.child."; popNestedPath() -> "spouse." again.

Specified by:

pushNestedPath in interface Errors

Parameters:

subPath - the sub path to push onto the nested path stack

See Also:

Errors.popNestedPath()

popNestedPath

public void popNestedPath()
                   throws IllegalArgumentException

Description copied from interface: Errors

Pop the former nested path from the nested path stack.

Specified by:

popNestedPath in interface Errors

Throws:

IllegalArgumentException

See Also:

Errors.pushNestedPath(java.lang.String)

doSetNestedPath

protected void doSetNestedPath(String nestedPath)

Actually set the nested path. Delegated to by setNestedPath and pushNestedPath.

fixedField

protected String fixedField(String field)

Transform the given field into its full path, regarding the nested path of this instance.

reject

public void reject(String errorCode)

Description copied from interface: Errors

Register a global error for the entire target object, using the given error description.

Specified by:

reject in interface Errors

Parameters:

errorCode - error code, interpretable as a message key

reject

public void reject(String errorCode,
                   String defaultMessage)

Description copied from interface: Errors

Register a global error for the entire target object, using the given error description.

Specified by:

reject in interface Errors

Parameters:

errorCode - error code, interpretable as a message key

defaultMessage - fallback default message

reject

public void reject(String errorCode,
                   Object[] errorArgs,
                   String defaultMessage)

Description copied from interface: Errors

Register a global error for the entire target object, using the given error description.

Specified by:

reject in interface Errors

Parameters:

errorCode - error code, interpretable as a message key

errorArgs - error arguments, for argument binding via MessageFormat (can be null)

defaultMessage - fallback default message

rejectValue

public void rejectValue(String field,
                        String errorCode)

Description copied from interface: Errors

Register a field error for the specified field of the current object (respecting the current nested path, if any), using the given error description.

The field name may be null or empty String to indicate the current object itself rather than a field of it. This may result in a corresponding field error within the nested object graph or a global error if the current object is the top object.

Specified by:

rejectValue in interface Errors

Parameters:

field - the field name (may be null or empty String)

errorCode - error code, interpretable as a message key

See Also:

Errors.getNestedPath()

rejectValue

public void rejectValue(String field,
                        String errorCode,
                        String defaultMessage)

Description copied from interface: Errors

Register a field error for the specified field of the current object (respecting the current nested path, if any), using the given error description.

The field name may be null or empty String to indicate the current object itself rather than a field of it. This may result in a corresponding field error within the nested object graph or a global error if the current object is the top object.

Specified by:

rejectValue in interface Errors

Parameters:

field - the field name (may be null or empty String)

errorCode - error code, interpretable as a message key

defaultMessage - fallback default message

See Also:

Errors.getNestedPath()

rejectValue

public void rejectValue(String field,
                        String errorCode,
                        Object[] errorArgs,
                        String defaultMessage)

Description copied from interface: Errors

Register a field error for the specified field of the current object (respecting the current nested path, if any), using the given error description.

The field name may be null or empty String to indicate the current object itself rather than a field of it. This may result in a corresponding field error within the nested object graph or a global error if the current object is the top object.

Specified by:

rejectValue in interface Errors

Parameters:

field - the field name (may be null or empty String)

errorCode - error code, interpretable as a message key

errorArgs - error arguments, for argument binding via MessageFormat (can be null)

defaultMessage - fallback default message

See Also:

Errors.getNestedPath()

resolveMessageCodes

public String[] resolveMessageCodes(String errorCode)

Resolve the given error code into message codes. Calls the MessageCodesResolver with appropriate parameters.

Parameters:

errorCode - the error code to resolve into message codes

Returns:

the resolved message codes

See Also:

setMessageCodesResolver(org.springframework.validation.MessageCodesResolver)

resolveMessageCodes

public String[] resolveMessageCodes(String errorCode,
                                    String field)

Description copied from interface: BindingResult

Resolve the given error code into message codes for the given field.

Calls the configured MessageCodesResolver with appropriate parameters.

Specified by:

resolveMessageCodes in interface BindingResult

Parameters:

errorCode - the error code to resolve into message codes

field - the field to resolve message codes for

Returns:

the resolved message codes

addError

public void addError(ObjectError error)

Description copied from interface: BindingResult

Add a custom ObjectError or FieldError to the errors list.

Intended to be used by cooperating strategies such as BindingErrorProcessor.

Specified by:

addError in interface BindingResult

See Also:

ObjectError, FieldError, BindingErrorProcessor

addAllErrors

public void addAllErrors(Errors errors)

Description copied from interface: Errors

Add all errors from the given Errors instance to this Errors instance.

This is a onvenience method to avoid repeated reject(..) calls for merging an Errors instance into another Errors instance.

Note that the passed-in Errors instance is supposed to refer to the same target object, or at least contain compatible errors that apply to the target object of this Errors instance.

Specified by:

addAllErrors in interface Errors

Parameters:

errors - the Errors instance to merge in

hasErrors

public boolean hasErrors()

Description copied from interface: Errors

Return if there were any errors.

Specified by:

hasErrors in interface Errors

getErrorCount

public int getErrorCount()

Description copied from interface: Errors

Return the total number of errors.

Specified by:

getErrorCount in interface Errors

getAllErrors

public List getAllErrors()

Description copied from interface: Errors

Get all errors, both global and field ones.

Specified by:

getAllErrors in interface Errors

Returns:

List of ObjectError instances

hasGlobalErrors

public boolean hasGlobalErrors()

Description copied from interface: Errors

Are there any global errors?

Specified by:

hasGlobalErrors in interface Errors

Returns:

true if there are any global errors

See Also:

Errors.hasFieldErrors()

getGlobalErrorCount

public int getGlobalErrorCount()

Description copied from interface: Errors

Return the number of global errors.

Specified by:

getGlobalErrorCount in interface Errors

Returns:

the number of global errors

See Also:

Errors.getFieldErrorCount()

getGlobalErrors

public List getGlobalErrors()

Description copied from interface: Errors

Get all global errors.

Specified by:

getGlobalErrors in interface Errors

Returns:

List of ObjectError instances

getGlobalError

public ObjectError getGlobalError()

Description copied from interface: Errors

Get the first global error, if any.

Specified by:

getGlobalError in interface Errors

Returns:

the global error, or null

hasFieldErrors

public boolean hasFieldErrors()

Description copied from interface: Errors

Are there any field errors?

Specified by:

hasFieldErrors in interface Errors

Returns:

true if there are any errors associated with a field

See Also:

Errors.hasGlobalErrors()

getFieldErrorCount

public int getFieldErrorCount()

Description copied from interface: Errors

Return the number of errors associated with a field.

Specified by:

getFieldErrorCount in interface Errors

Returns:

the number of errors associated with a field

See Also:

Errors.getGlobalErrorCount()

getFieldErrors

public List getFieldErrors()

Description copied from interface: Errors

Get all errors associated with a field.

Specified by:

getFieldErrors in interface Errors

Returns:

a List of FieldError instances

getFieldError

public FieldError getFieldError()

Description copied from interface: Errors

Get the first error associated with a field, if any.

Specified by:

getFieldError in interface Errors

Returns:

the field-specific error, or null

hasFieldErrors

public boolean hasFieldErrors(String field)

Description copied from interface: Errors

Are there any errors associated with the given field?

Specified by:

hasFieldErrors in interface Errors

Parameters:

field - the field name

Returns:

true if there were any errors associated with the given field

getFieldErrorCount

public int getFieldErrorCount(String field)

Description copied from interface: Errors

Return the number of errors associated with the given field.

Specified by:

getFieldErrorCount in interface Errors

Parameters:

field - the field name

Returns:

the number of errors associated with the given field

getFieldErrors

public List getFieldErrors(String field)

Description copied from interface: Errors

Get all errors associated with the given field.

Implementations should support not only full field names like "name" but also pattern matches like "na*" or "address.*".

Specified by:

getFieldErrors in interface Errors

Parameters:

field - the field name

Returns:

a List of FieldError instances

getFieldError

public FieldError getFieldError(String field)

Description copied from interface: Errors

Get the first error associated with the given field, if any.

Specified by:

getFieldError in interface Errors

Parameters:

field - the field name

Returns:

the field-specific error, or null

isMatchingFieldError

protected boolean isMatchingFieldError(String field,
                                       FieldError fieldError)

Check whether the given FieldError matches the given field.

Parameters:

field - the field that we are looking up FieldErrors for

fieldError - the candidate FieldError

Returns:

whether the FieldError matches the given field

getFieldValue

public Object getFieldValue(String field)

Description copied from interface: Errors

Return the current value of the given field, either the current bean property value or a rejected update from the last binding.

Allows for convenient access to user-specified field values, even if there were type mismatches.

Specified by:

getFieldValue in interface Errors

Parameters:

field - the field name

Returns:

the current value of the given field

getFieldType

public Class getFieldType(String field)

This default implementation determines the type based on the actual field value, if any. Subclasses should override this to determine the type from a descriptor, even for null values.

Specified by:

getFieldType in interface Errors

Parameters:

field - the field name

Returns:

the type of the field, or null if not determinable

See Also:

getActualFieldValue(java.lang.String)

getModel

public Map getModel()

Return a model Map for the obtained state, exposing an Errors instance as 'MODEL_KEY_PREFIX + objectName' and the object itself.

Note that the Map is constructed every time you're calling this method. Adding things to the map and then re-calling this method will not work.

The attributes in the model Map returned by this method are usually included in the ModelAndView for a form view that uses Spring's bind tag, which needs access to the Errors instance. Spring's SimpleFormController will do this for you when rendering its form or success view. When building the ModelAndView yourself, you need to include the attributes from the model Map returned by this method yourself.

Specified by:

getModel in interface BindingResult

See Also:

getObjectName(), BindingResult.MODEL_KEY_PREFIX, ModelAndView, BindTag, SimpleFormController

getPropertyEditorRegistry

public PropertyEditorRegistry getPropertyEditorRegistry()

This implementation throws an UnsupportedOperationException.

Specified by:

getPropertyEditorRegistry in interface BindingResult

recordSuppressedField

public void recordSuppressedField(String fieldName)

Mark the specified disallowed field as suppressed.

The data binder invokes this for each field value that was detected to target a disallowed field.

Specified by:

recordSuppressedField in interface BindingResult

See Also:

DataBinder.setAllowedFields(java.lang.String[])

getSuppressedFields

public String[] getSuppressedFields()

Return the list of fields that were suppressed during the bind process.

Can be used to determine whether any field values were targetting disallowed fields.

Specified by:

getSuppressedFields in interface BindingResult

See Also:

DataBinder.setAllowedFields(java.lang.String[])

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getTarget

public abstract Object getTarget()

Return the wrapped target object.

Specified by:

getTarget in interface BindingResult

canonicalFieldName

protected String canonicalFieldName(String field)

Determine the canonical field name for the given field.

The default implementation simply returns the field name as-is.

Parameters:

field - the original field name

Returns:

the canonical field name

getActualFieldValue

protected abstract Object getActualFieldValue(String field)

Extract the actual field value for the given field.

Parameters:

field - the field to check

Returns:

the current value of the field

formatFieldValue

protected Object formatFieldValue(String field,
                                  Object value)

Format the given value for the specified field.

The default implementation simply returns the field value as-is.

Parameters:

field - the field to check

value - the value of the field (either a rejected value other than from a binding error, or an actual field value)

Returns:

the formatted value