org.apache.tapestry5
Class ValidationTrackerImpl

java.lang.Object
  org.apache.tapestry5.BaseOptimizedSessionPersistedObject
      org.apache.tapestry5.ValidationTrackerImpl

All Implemented Interfaces:

Serializable, OptimizedSessionPersistedObject, ValidationTracker

public final class ValidationTrackerImpl
extends BaseOptimizedSessionPersistedObject
implements ValidationTracker, Serializable

Standard implementation of ValidationTracker. Works pretty hard to ensure a minimum amount of data is stored in the HttpSession.

See Also:

Serialized Form

Constructor Summary

ValidationTrackerImpl()

Method Summary

void	clear() Clears all information stored by the tracker.
String	getError(Field field) Returns a previously recorded error message.
List<String>	getErrors() Returns a list of all error messages.
boolean	getHasErrors() Returns true if any field contains an error.
String	getInput(Field field) Returns a previously recorded input value.
boolean	inError(Field field) For a given field, determines if the field is "in error", meaning that an error message has been previously recorded for the field.
void	recordError(Field field, String errorMessage) Records an error message for a field.
void	recordError(String errorMessage) Records an error message that is not associated with any specific field.
void	recordInput(Field field, String input) Called by a field to record the exact input from the user, prior to any validation.

Methods inherited from class org.apache.tapestry5.BaseOptimizedSessionPersistedObject

checkAndResetDirtyMarker, markDirty

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ValidationTrackerImpl

public ValidationTrackerImpl()

Method Detail

clear

public void clear()

Description copied from interface: ValidationTracker

Clears all information stored by the tracker.

Specified by:

clear in interface ValidationTracker

getError

public String getError(Field field)

Description copied from interface: ValidationTracker

Returns a previously recorded error message.

Specified by:

getError in interface ValidationTracker

getErrors

public List<String> getErrors()

Description copied from interface: ValidationTracker

Returns a list of all error messages. The messages are stored in the order that they were added to the tracker, except that unassociated errors (unassociated with any field) are listed first.

Specified by:

getErrors in interface ValidationTracker

getHasErrors

public boolean getHasErrors()

Description copied from interface: ValidationTracker

Returns true if any field contains an error.

Specified by:

getHasErrors in interface ValidationTracker

getInput

public String getInput(Field field)

Description copied from interface: ValidationTracker

Returns a previously recorded input value.

Specified by:

getInput in interface ValidationTracker

inError

public boolean inError(Field field)

Description copied from interface: ValidationTracker

For a given field, determines if the field is "in error", meaning that an error message has been previously recorded for the field.

Specified by:

inError in interface ValidationTracker

Returns:

true if an error message is present

recordError

public void recordError(Field field,
                        String errorMessage)

Description copied from interface: ValidationTracker

Records an error message for a field. The error message is primarily derived from a ValidationException thrown by a Validator or Translator.

Specified by:

recordError in interface ValidationTracker

recordError

public void recordError(String errorMessage)

Description copied from interface: ValidationTracker

Records an error message that is not associated with any specific field. This often reflects some amount of cross-form validation.

Specified by:

recordError in interface ValidationTracker

recordInput

public void recordInput(Field field,
                        String input)

Description copied from interface: ValidationTracker

Called by a field to record the exact input from the user, prior to any validation. If the form is redisplayed (to present errors), the input value will be sent back to the user for correction.

Specified by:

recordInput in interface ValidationTracker

Parameters:

field - the field recording the input

input - the value obtained from the forms submission