BindingResult (Jakarta MVC 2.0.0 API)

```
public interface BindingResult
```
Describes the binding result of all controller fields and controller method parameters which are annotated with a binding annotation like FormParam.

A binding can fail because of type conversion issues or in case of validation errors. The former can for example happen if the binding annotation is placed on a numeric type but the value cannot be converted to that type. The latter may be caused by constraint violations detected during validation.

Controller methods which declare a parameter of this type will be executed even if the binding for fields and method parameters fails.

Since:

1.0

Author:

Christian Kaltepoth, Ivar Grimstad

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Set<ParamError>`	`getAllErrors()`	Returns an immutable set of all binding and validation errors.
`List<String>`	`getAllMessages()`	Returns an immutable list of all messages representing both binding and validation errors.
`Set<ParamError>`	`getErrors(String param)`	Returns an immutable set of all binding and validation errors for a specific parameter.
`boolean`	`isFailed()`	Returns `true` if there is at least one parameter error.

- Method Detail
  - isFailed
```
boolean isFailed()
```
    Returns true if there is at least one parameter error.
    
    Returns:
    
    true if there is at least one parameter error
  - getAllMessages
```
List<String> getAllMessages()
```
    Returns an immutable list of all messages representing both binding and validation errors. This method is a shortcut for:
    getAllErrors().stream().map(ParamError::getMessage).collect(Collectors.toList())
    Returns:
    
    A list of human-readable messages
  - getAllErrors
```
Set<ParamError> getAllErrors()
```
    Returns an immutable set of all binding and validation errors.
    
    Returns:
    
    All binding and validation errors.
  - getErrors
```
Set<ParamError> getErrors(String param)
```
    Returns an immutable set of all binding and validation errors for a specific parameter.
    
    Parameters:
    
    param - parameter name
    
    Returns:
    
    All binding and validation errors for the parameter.