com.vaadin.data.validator.

java.lang.Object
- com.vaadin.data.validator.BeanValidator

All Implemented Interfaces:

Validator<Object>, Serializable, BiFunction<Object,ValueContext,ValidationResult>
```
public class BeanValidator
extends Object
implements Validator<Object>
```
A Validator using the JSR-303 (javax.validation) annotation-based bean validation mechanism. Values passed to this validator are compared against the constraints, if any, specified by annotations on the corresponding bean property.
Note that a JSR-303 implementation (for instance Hibernate Validator or Apache BVal) must be present on the project classpath when using bean validation. Specification versions 1.0 and 1.1 are supported.

Since:

8.0

Author:

Vaadin Ltd.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`BeanValidator(Class<?> beanType, String propertyName)`	Creates a new JSR-303 `BeanValidator` that validates values of the specified property.

Method Summary

All Methods
Modifier and Type	Method	Description
`ValidationResult`	`apply(Object value, ValueContext context)`	Validates the given value as if it were the value of the bean property configured for this validator.
`protected MessageInterpolator.Context`	`createContext(ConstraintViolation<?> violation)`	Creates a simple message interpolation context based on the given constraint violation.
`Validator`	`getJavaxBeanValidator()`	Returns a shared JSR-303 validator instance to use.
`protected static ValidatorFactory`	`getJavaxBeanValidatorFactory()`	Returns the underlying JSR-303 bean validator factory used.
`protected String`	`getMessage(ConstraintViolation<?> violation, Locale locale)`	Returns the interpolated error message for the given constraint violation using the locale specified for this validator.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.BiFunction
andThen

- Constructor Detail
  - BeanValidator
```
public BeanValidator(Class<?> beanType,
                     String propertyName)
```
    Creates a new JSR-303 BeanValidator that validates values of the specified property. Localizes validation messages using the default locale.
    
    Parameters:
    
    beanType - the bean type declaring the property, not null
    
    propertyName - the property to validate, not null
    
    Throws:
    
    IllegalStateException - if BeanUtil.checkBeanValidationAvailable() returns false
- Method Detail
  - apply
```
public ValidationResult apply(Object value,
                              ValueContext context)
```
    Validates the given value as if it were the value of the bean property configured for this validator. Returns Result.ok if there are no JSR-303 constraint violations, a Result.error of chained constraint violation messages otherwise.
    Null values are accepted unless the property has an @NotNull annotation or equivalent.
    
    Specified by:
    
    apply in interface BiFunction<Object,ValueContext,ValidationResult>
    
    Specified by:
    
    apply in interface Validator<Object>
    
    Parameters:
    
    value - the input value to validate
    
    context - the value context for validation
    
    Returns:
    
    the validation result
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getJavaxBeanValidatorFactory
```
protected static ValidatorFactory getJavaxBeanValidatorFactory()
```
    Returns the underlying JSR-303 bean validator factory used. A factory is created using Validation if necessary.
    
    Returns:
    
    the validator factory to use
  - getJavaxBeanValidator
```
public Validator getJavaxBeanValidator()
```
    Returns a shared JSR-303 validator instance to use.
    
    Returns:
    
    the validator to use
  - getMessage
```
protected String getMessage(ConstraintViolation<?> violation,
                            Locale locale)
```
    Returns the interpolated error message for the given constraint violation using the locale specified for this validator.
    
    Parameters:
    
    violation - the constraint violation
    
    locale - the used locale
    
    Returns:
    
    the localized error message
  - createContext
```
protected MessageInterpolator.Context createContext(ConstraintViolation<?> violation)
```
    Creates a simple message interpolation context based on the given constraint violation.
    
    Parameters:
    
    violation - the constraint violation
    
    Returns:
    
    the message interpolation context

com.vaadin.data.validator.

Class BeanValidator

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.function.BiFunction

Constructor Detail

BeanValidator

Method Detail

apply

toString

getJavaxBeanValidatorFactory

getJavaxBeanValidator

getMessage

createContext