jaxx.runtime.validator
Class BeanValidator<B>

java.lang.Object
  jaxx.runtime.validator.BeanValidator<B>

Type Parameters:

B - type of the bean to validate.

Direct Known Subclasses:

SwingValidator

public class BeanValidator<B>
extends Object

A customized validator for a given bean.

Note: The bean must be listenable on properyChange events (means must have public addPropertychangeListener and removePropertyChangeListener methods).

Author:

tchemit

Field Summary

protected B	bean bean to be watched
static String	BEAN_PROERTY la nom de la propriété bean
protected Class<B>	beanClass the type of bean to watch
protected EventSetDescriptor	beanEventDescriptor to add and remove PropertyChangeListener on watched beans
protected boolean	changed state to indicate that validator has changed since the last time bean was setted
static String	CHANGED_PROERTY la nom de l'état changed
static String	CONTEXT_NAME_PROPERTY la nom de la propriété contextName
protected String	contextName the validation named context (can be null)
protected Map<String,String>	conversionErrors map of conversion errors detected by this validator
protected Set<BeanValidatorField<B>>	fields list of fields watched by this validator
protected static BeanValidatorScope[]	FILTER_SCOPES_EMPTY
protected BeanValidatorScope[]	filterScopes filter scopes (if null, no filter on scopes)
protected PropertyChangeListener	l listener that listens on bean modification
protected EventListenerList	listenerList A list of event listeners for this validators
protected static org.apache.commons.logging.Log	log Logger
protected BeanValidator<?>	parentValidator to chain to a prent validator
protected PropertyChangeSupport	pcs delegate property change support
protected boolean	valid state of the validator (is true if no errors of error scope is found)
static String	VALID_PROERTY la nom de l'état valid
protected EnumMap<BeanValidatorScope,XWorkBeanValidator<B>>	validators xworks scope validator *

Constructor Summary

BeanValidator(Class<B> beanClass, String contextName)

BeanValidator(Class<B> beanClass, String contextName, BeanValidatorScope... filterScopes)

Method Summary

void	addBeanValidatorListener(BeanValidatorListener listener)
void	addPropertyChangeListener(PropertyChangeListener listener)
void	addPropertyChangeListener(String propertyName, PropertyChangeListener listener)
protected boolean	canValidate()
boolean	containsField(String fieldName) Test a the validator contains the field given his name
<T> T	convert(String fieldName, String value, Class<T> valueClass) Convert a value.
void	doValidate() Methode pour forcer la revalidation d'un bean en mettant a jour les etats internes.
protected void	fireFieldChanged(BeanValidatorField<B> field, BeanValidatorScope scope, String[] toAdd, String[] toDelete)
B	getBean()
Class<B>	getBeanClass()
protected EventSetDescriptor	getBeanEventDescriptor(B bean)
BeanValidatorListener[]	getBeanValidatorListeners()
String	getContextName()
BeanValidatorField<B>	getField(String fieldName)
Set<BeanValidatorField<B>>	getFields()
BeanValidator<?>	getParentValidator()
Set<BeanValidatorScope>	getScopes()
boolean	hasErrors()
boolean	hasInfos()
boolean	hasWarnings()
protected void	initFields()
boolean	isChanged() Retourne vrai si l'objet bean a ete modifie depuis le dernier setBean(B)
boolean	isValid()
boolean	isValid(String fieldName)
void	removeBeanValidatorListener(BeanValidatorListener listener)
void	removePropertyChangeListener(PropertyChangeListener listener)
void	removePropertyChangeListener(String propertyName, PropertyChangeListener listener)
void	setBean(B bean)
void	setChanged(boolean changed) Permet de force la remise a false de l'etat de changement du bean
void	setContextName(String contextName)
void	setFilterScopes(BeanValidatorScope... filterScopes) Sets the filter scopes.
void	setParentValidator(BeanValidator<?> parentValidator)
void	setValid(boolean valid)
String	toString()
protected void	validate() il faut eviter le code re-intrant (durant une validation, une autre est demandee).

Methods inherited from class java.lang.Object

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

Field Detail

BEAN_PROERTY

public static final String BEAN_PROERTY

la nom de la propriété bean

See Also:

Constant Field Values

CONTEXT_NAME_PROPERTY

public static final String CONTEXT_NAME_PROPERTY

la nom de la propriété contextName

See Also:

Constant Field Values

VALID_PROERTY

public static final String VALID_PROERTY

la nom de l'état valid

See Also:

Constant Field Values

CHANGED_PROERTY

public static final String CHANGED_PROERTY

la nom de l'état changed

See Also:

Constant Field Values

log

protected static final org.apache.commons.logging.Log log

Logger

FILTER_SCOPES_EMPTY

protected static final BeanValidatorScope[] FILTER_SCOPES_EMPTY

beanClass

protected final Class<B> beanClass

the type of bean to watch

contextName

protected String contextName

the validation named context (can be null)

parentValidator

protected BeanValidator<?> parentValidator

to chain to a prent validator

changed

protected boolean changed

state to indicate that validator has changed since the last time bean was setted

valid

protected boolean valid

state of the validator (is true if no errors of error scope is found)

bean

protected B bean

bean to be watched

beanEventDescriptor

protected EventSetDescriptor beanEventDescriptor

to add and remove PropertyChangeListener on watched beans

fields

protected Set<BeanValidatorField<B>> fields

list of fields watched by this validator

conversionErrors

protected Map<String,String> conversionErrors

map of conversion errors detected by this validator

validators

protected EnumMap<BeanValidatorScope,XWorkBeanValidator<B>> validators

xworks scope validator *

filterScopes

protected BeanValidatorScope[] filterScopes

filter scopes (if null, no filter on scopes)

l

protected PropertyChangeListener l

listener that listens on bean modification

pcs

protected PropertyChangeSupport pcs

delegate property change support

listenerList

protected EventListenerList listenerList

A list of event listeners for this validators

Constructor Detail

BeanValidator

public BeanValidator(Class<B> beanClass,
                     String contextName)

BeanValidator

public BeanValidator(Class<B> beanClass,
                     String contextName,
                     BeanValidatorScope... filterScopes)

Method Detail

getBeanClass

public Class<B> getBeanClass()

getParentValidator

public BeanValidator<?> getParentValidator()

getContextName

public String getContextName()

getFields

public Set<BeanValidatorField<B>> getFields()

getScopes

public Set<BeanValidatorScope> getScopes()

isChanged

public boolean isChanged()

Retourne vrai si l'objet bean a ete modifie depuis le dernier setBean(B)

Returns:

true if bean was modify since last setBean(Object) invocation

isValid

public boolean isValid()

getBean

public B getBean()

getField

public BeanValidatorField<B> getField(String fieldName)

hasErrors

public boolean hasErrors()

hasWarnings

public boolean hasWarnings()

hasInfos

public boolean hasInfos()

containsField

public boolean containsField(String fieldName)

Test a the validator contains the field given his name

Parameters:

fieldName - the name of the searched field

Returns:

true if validator contaisn this field, false otherwise

isValid

public boolean isValid(String fieldName)

setChanged

public void setChanged(boolean changed)

Permet de force la remise a false de l'etat de changement du bean

Parameters:

changed - flag to force reset of property changed

setValid

public void setValid(boolean valid)

setBean

public void setBean(B bean)

setContextName

public void setContextName(String contextName)

setFilterScopes

public void setFilterScopes(BeanValidatorScope... filterScopes)

Sets the filter scopes.

Parameters:

filterScopes - the scopes to used

setParentValidator

public void setParentValidator(BeanValidator<?> parentValidator)

convert

public <T> T convert(String fieldName,
                     String value,
                     Class<T> valueClass)

Convert a value.

If an error occurs, then add an error in validator.

Type Parameters:

T - the type of conversion

Parameters:

fieldName - the name of the bean property

value - the value to convert

valueClass - the type of converted value

Returns:

the converted value, or null if conversion was not ok

doValidate

public void doValidate()

Methode pour forcer la revalidation d'un bean en mettant a jour les etats internes.

La méthode appelle validate() puis met à jour les etats internes valid et changed.

Since:

1.5

validate

protected void validate()

il faut eviter le code re-intrant (durant une validation, une autre est demandee). Pour cela on fait la validation dans un thread, et tant que la premiere validation n'est pas fini, on ne repond pas aux solicitations. Cette method est public pour permettre de force une validation par programmation, ce qui est utile par exemple si le bean ne supporte pas les PropertyChangeListener

Note: la methode est protected et on utilise la methode doValidate() car la méthode ne modifie pas les etats internes et cela en rend son utilisation delicate (le validateur entre dans un etat incoherent par rapport aux messages envoyés).

toString

public String toString()

Overrides:

toString in class Object

addBeanValidatorListener

public void addBeanValidatorListener(BeanValidatorListener listener)

removeBeanValidatorListener

public void removeBeanValidatorListener(BeanValidatorListener listener)

getBeanValidatorListeners

public BeanValidatorListener[] getBeanValidatorListeners()

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

addPropertyChangeListener

public void addPropertyChangeListener(String propertyName,
                                      PropertyChangeListener listener)

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

removePropertyChangeListener

public void removePropertyChangeListener(String propertyName,
                                         PropertyChangeListener listener)

canValidate

protected boolean canValidate()

Returns:

true if validation is enabled, false otherwise.

fireFieldChanged

protected void fireFieldChanged(BeanValidatorField<B> field,
                                BeanValidatorScope scope,
                                String[] toAdd,
                                String[] toDelete)

initFields

protected void initFields()

getBeanEventDescriptor

protected EventSetDescriptor getBeanEventDescriptor(B bean)