org.springframework.validation
Class AbstractErrors

java.lang.Object
  extended by org.springframework.validation.AbstractErrors
All Implemented Interfaces:
java.io.Serializable, Errors
Direct Known Subclasses:
AbstractBindingResult

public abstract class AbstractErrors
extends java.lang.Object
implements Errors, java.io.Serializable

Abstract implementation of the Errors interface. Provides common access to evaluated errors; however, does not define concrete management of ObjectErrors and FieldErrors.

Since:
2.5.3
Author:
Juergen Hoeller
See Also:
Serialized Form

Field Summary
 
Fields inherited from interface org.springframework.validation.Errors
NESTED_PATH_SEPARATOR
 
Constructor Summary
AbstractErrors()
           
 
Method Summary
protected  java.lang.String canonicalFieldName(java.lang.String field)
          Determine the canonical field name for the given field.
protected  void doSetNestedPath(java.lang.String nestedPath)
          Actually set the nested path.
protected  java.lang.String fixedField(java.lang.String field)
          Transform the given field into its full path, regarding the nested path of this instance.
 java.util.List<ObjectError> 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(java.lang.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(java.lang.String field)
          Return the number of errors associated with the given field.
 java.util.List<FieldError> getFieldErrors(java.lang.String field)
          Get all errors associated with the given field.
 java.lang.Class getFieldType(java.lang.String field)
          Return the type of a given field.
 ObjectError getGlobalError()
          Get the first global error, if any.
 int getGlobalErrorCount()
          Return the number of global errors.
 java.lang.String getNestedPath()
          Return the current nested path of this Errors object.
 boolean hasErrors()
          Return if there were any errors.
 boolean hasFieldErrors()
          Are there any field errors?
 boolean hasFieldErrors(java.lang.String field)
          Are there any errors associated with the given field?
 boolean hasGlobalErrors()
          Are there any global errors?
protected  boolean isMatchingFieldError(java.lang.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(java.lang.String subPath)
          Push the given sub path onto the nested path stack.
 void reject(java.lang.String errorCode)
          Register a global error for the entire target object, using the given error description.
 void reject(java.lang.String errorCode, java.lang.String defaultMessage)
          Register a global error for the entire target object, using the given error description.
 void rejectValue(java.lang.String field, java.lang.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(java.lang.String field, java.lang.String errorCode, java.lang.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 setNestedPath(java.lang.String nestedPath)
          Allow context to be changed so that standard validators can validate subtrees.
 java.lang.String toString()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.springframework.validation.Errors
addAllErrors, getFieldErrors, getFieldValue, getGlobalErrors, getObjectName, reject, rejectValue
 

Constructor Detail

AbstractErrors

public AbstractErrors()
Method Detail

setNestedPath

public void setNestedPath(java.lang.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 java.lang.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(java.lang.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 java.lang.IllegalArgumentException
Description copied from interface: Errors
Pop the former nested path from the nested path stack.

Specified by:
popNestedPath in interface Errors
Throws:
java.lang.IllegalArgumentException
See Also:
Errors.pushNestedPath(java.lang.String)

doSetNestedPath

protected void doSetNestedPath(java.lang.String nestedPath)
Actually set the nested path. Delegated to by setNestedPath and pushNestedPath.


fixedField

protected java.lang.String fixedField(java.lang.String field)
Transform the given field into its full path, regarding the nested path of this instance.


canonicalFieldName

protected java.lang.String canonicalFieldName(java.lang.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

reject

public void reject(java.lang.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(java.lang.String errorCode,
                   java.lang.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

rejectValue

public void rejectValue(java.lang.String field,
                        java.lang.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(java.lang.String field,
                        java.lang.String errorCode,
                        java.lang.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()

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 java.util.List<ObjectError> 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()

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()

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(java.lang.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(java.lang.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 java.util.List<FieldError> getFieldErrors(java.lang.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(java.lang.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

getFieldType

public java.lang.Class getFieldType(java.lang.String field)
Description copied from interface: Errors
Return the type of a given field.

Implementations should be able to determine the type even when the field value is null, for example from some associated descriptor.

Specified by:
getFieldType in interface Errors
Parameters:
field - the field name
Returns:
the type of the field, or null if not determinable

isMatchingFieldError

protected boolean isMatchingFieldError(java.lang.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

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object