Spring Framework

org.springframework.web.bind
Class EscapedErrors

java.lang.Object
  extended by org.springframework.web.bind.EscapedErrors
All Implemented Interfaces:
Errors

public class EscapedErrors
extends java.lang.Object
implements Errors

Errors wrapper that adds automatic HTML escaping to the wrapped instance, for convenient usage in HTML views. Can be retrieved easily via RequestContext's getErrors method.

Note that BindTag does not use this class to avoid unnecessary creation of ObjectError instances. It just escapes the messages and values that get copied into the respective BindStatus instance.

Since:
01.03.2003
Author:
Juergen Hoeller
See Also:
RequestContext.getErrors(java.lang.String), BindTag

Field Summary
 
Fields inherited from interface org.springframework.validation.Errors
NESTED_PATH_SEPARATOR
 
Constructor Summary
EscapedErrors(Errors source)
          Create a new EscapedErrors instance for the given source instance.
 
Method Summary
 void addAllErrors(Errors errors)
          Add all errors from the given Errors instance to this Errors 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()
          Get all errors associated with a 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.
 java.lang.Object getFieldValue(java.lang.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.
 java.util.List<ObjectError> getGlobalErrors()
          Get all global errors.
 java.lang.String getNestedPath()
          Return the current nested path of this Errors object.
 java.lang.String getObjectName()
          Return the name of the bound root object.
 Errors getSource()
           
 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?
 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.Object[] errorArgs, java.lang.String defaultMessage)
          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.Object[] errorArgs, 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 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.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

EscapedErrors

public EscapedErrors(Errors source)
Create a new EscapedErrors instance for the given source instance.

Method Detail

getSource

public Errors getSource()

getObjectName

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

Specified by:
popNestedPath in interface Errors
Throws:
java.lang.IllegalStateException - if there is no former nested path on the stack
See Also:
Errors.pushNestedPath(java.lang.String)

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

reject

public void reject(java.lang.String errorCode,
                   java.lang.Object[] errorArgs,
                   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
errorArgs - error arguments, for argument binding via MessageFormat (can be null)
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()

rejectValue

public void rejectValue(java.lang.String field,
                        java.lang.String errorCode,
                        java.lang.Object[] errorArgs,
                        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
errorArgs - error arguments, for argument binding via MessageFormat (can be null)
defaultMessage - fallback default message
See Also:
Errors.getNestedPath()

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 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()

getGlobalErrors

public java.util.List<ObjectError> 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 java.util.List<FieldError> 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(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

getFieldValue

public java.lang.Object getFieldValue(java.lang.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 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

Spring Framework