com.vaadin.flow.data.binder.DefaultBindingExceptionHandler API 23.1.17 | Vaadin

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com.vaadin.flow.data.binder.

java.lang.Object
- com.vaadin.flow.data.binder.DefaultBindingExceptionHandler

All Implemented Interfaces:

BindingExceptionHandler, Serializable
```
public class DefaultBindingExceptionHandler
extends Object
implements BindingExceptionHandler
```
Default implementation of BindingExceptionHandler.
The handler tries to identify the HasElement field using "label" and "id" property values and if they are not available it tries dump all the attributes and properties in dev mode. The exception is not produced if the element has no any attribute or property.

Since:

Author:

Vaadin Ltd

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

DefaultBindingExceptionHandler()

Method Summary

All Methods
Modifier and Type	Method	Description
`Optional<BindingException>`	`handleException(HasValue<?,?> field, Exception exception)`	Produces a `BindingException` instance based on original `exception` and field as a subject of the exception.

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

- Constructor Detail
  - DefaultBindingExceptionHandler
```
public DefaultBindingExceptionHandler()
```
- Method Detail
  - handleException
```
public Optional<BindingException> handleException(HasValue<?,?> field,
                                                  Exception exception)
```
    Description copied from interface: BindingExceptionHandler
    
    Produces a BindingException instance based on original exception and field as a subject of the exception.
    If the method returns an empty optional then the original exception will be thrown in the place where it has been caught.
    The produced exception will be thrown instead of the exception and may contain it as a cause and additional information based on the field.
    
    Specified by:
    
    handleException in interface BindingExceptionHandler
    
    Parameters:
    
    field - the subject of the exception
    
    exception - an exception thrown within binding logic
    
    Returns:
    
    an optional BindingException, or an empty optional if no additional information should be provided for the thrown exception