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EscapedErrors (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

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org.springframework.web.bind
Class EscapedErrors

java.lang.Object
  org.springframework.web.bind.EscapedErrors

All Implemented Interfaces:

Errors

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public class EscapedErrors
extends 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

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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.
List	getAllErrors()           Get all errors, both global and field ones.
int	getErrorCount()           Return the total number of errors.
FieldError	getFieldError(String field)           Get the first error associated with the given field, if any.
int	getFieldErrorCount(String field)           Return the number of errors associated with the given field.
List	getFieldErrors(String field)           Get all errors associated with the given field.
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.
String	getNestedPath()           Return the current nested path of this Errors object.
String	getObjectName()           Return the name of the bound root object.
Errors	getSource()
boolean	hasErrors()           Return if there were any errors.
boolean	hasFieldErrors(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(String subPath)           Push the given sub path onto the nested path stack.
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.
void	setNestedPath(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()

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getObjectName

public String getObjectName()

Description copied from interface: Errors

Return the name of the bound root object.

Specified by:

getObjectName in interface Errors

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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.

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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

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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()

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popNestedPath

public void popNestedPath()
                   throws IllegalStateException

Description copied from interface: Errors

Pop the former nested path from the nested path stack.

Specified by:

popNestedPath in interface Errors

Throws:

IllegalStateException - if there is no former nested path on the stack

See Also:

Errors.pushNestedPath(java.lang.String)

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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

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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

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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

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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()

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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()

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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()

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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

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hasErrors

public boolean hasErrors()

Description copied from interface: Errors

Return if there were any errors.

Specified by:

hasErrors in interface Errors

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getErrorCount

public int getErrorCount()

Description copied from interface: Errors

Return the total number of errors.

Specified by:

getErrorCount in interface Errors

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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

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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

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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

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getGlobalErrors

public List getGlobalErrors()

Description copied from interface: Errors

Get all global errors.

Specified by:

getGlobalErrors in interface Errors

Returns:

List of ObjectError instances

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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

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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

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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

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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

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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

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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

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