Method Summary

All Methods
Modifier and Type	Method	Description
`default <T> Converter<PRESENTATION,T>`	`chain(Converter<MODEL,T> other)`	Returns a converter that chains together this converter with the given type-compatible converter.
`Result<MODEL>`	`convertToModel(PRESENTATION value, ValueContext context)`	Converts the given value from model type to presentation type.
`PRESENTATION`	`convertToPresentation(MODEL value, ValueContext context)`	Converts the given value from presentation type to model type.
`static <P,M> Converter<P,M>`	`from(SerializableFunction<P,Result<M>> toModel, SerializableFunction<M,P> toPresentation)`	Constructs a converter from a filter and a function.
`static <P,M> Converter<P,M>`	`from(SerializableFunction<P,M> toModel, SerializableFunction<M,P> toPresentation, SerializableFunction<Exception,String> onError)`	Constructs a converter from two functions.
`static <T> Converter<T,T>`	`identity()`	Returns a converter that returns its input as-is in both directions.

- Method Detail
  - convertToModel
```
Result<MODEL> convertToModel(PRESENTATION value,
                             ValueContext context)
```
    Converts the given value from model type to presentation type.
    A converter can optionally use locale to do the conversion.
    
    Parameters:
    
    value - The value to convert. Can be null
    
    context - The value context for the conversion.
    
    Returns:
    
    The converted value compatible with the source type
  - convertToPresentation
```
PRESENTATION convertToPresentation(MODEL value,
                                   ValueContext context)
```
    Converts the given value from presentation type to model type.
    A converter can optionally use locale to do the conversion.
    
    Parameters:
    
    value - The value to convert. Can be null
    
    context - The value context for the conversion.
    
    Returns:
    
    The converted value compatible with the source type
  - identity
```
static <T> Converter<T,T> identity()
```
    Returns a converter that returns its input as-is in both directions.
    
    Type Parameters:
    
    T - the input and output type
    
    Returns:
    
    an identity converter
  - from
```
static <P,M> Converter<P,M> from(SerializableFunction<P,M> toModel,
                                             SerializableFunction<M,P> toPresentation,
                                             SerializableFunction<Exception,String> onError)
```
    Constructs a converter from two functions. Any Exception instances thrown from the toModel function are converted into error-bearing Result objects using the given onError function.
    
    Type Parameters:
    
    P - the presentation type
    
    M - the model type
    
    Parameters:
    
    toModel - the function to convert to model
    
    toPresentation - the function to convert to presentation
    
    onError - the function to provide error messages
    
    Returns:
    
    the new converter
    
    See Also:
    
    Result, Function
  - from
```
static <P,M> Converter<P,M> from(SerializableFunction<P,Result<M>> toModel,
                                             SerializableFunction<M,P> toPresentation)
```
    Constructs a converter from a filter and a function.
    
    Type Parameters:
    
    P - the presentation type
    
    M - the model type
    
    Parameters:
    
    toModel - the function to convert to model
    
    toPresentation - the function to convert to presentation
    
    Returns:
    
    the new converter
    
    See Also:
    
    Function
  - chain
```
default <T> Converter<PRESENTATION,T> chain(Converter<MODEL,T> other)
```
    Returns a converter that chains together this converter with the given type-compatible converter.
    The chained converters will form a new converter capable of converting from the presentation type of this converter to the model type of the other converter.
    In most typical cases you should not need this method but instead only need to define one converter for a binding using Binder.BindingBuilder.withConverter(Converter).
    
    Type Parameters:
    
    T - the model type of the resulting converter
    
    Parameters:
    
    other - the converter to chain, not null
    
    Returns:
    
    a chained converter

com.vaadin.data.

Interface Converter<PRESENTATION,​MODEL>

Method Summary

Method Detail

convertToModel

convertToPresentation

identity

from

from

chain

Interface Converter<PRESENTATION,MODEL>