java.lang.Object
- com.vaadin.data.Binder.BindingImpl<BEAN,FIELDVALUE,TARGET>

Type Parameters:

BEAN - the bean type, must match the Binder bean type

FIELDVALUE - the value type of the field

TARGET - the target data type of the binding, matches the field type unless a converter has been set

All Implemented Interfaces:

Binder.Binding<BEAN,TARGET>, Serializable

Enclosing class:

Binder<BEAN>
```
protected static class Binder.BindingImpl<BEAN,FIELDVALUE,TARGET>
extends Object
implements Binder.Binding<BEAN,TARGET>
```
An internal implementation of Binding.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`BindingImpl(Binder.BindingBuilderImpl<BEAN,FIELDVALUE,TARGET> builder, ValueProvider<BEAN,TARGET> getter, Setter<BEAN,TARGET> setter)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected ValueContext`	`createValueContext()`	Creates a value context from the current state of the binding and its field.
`protected Locale`	`findLocale()`	Finds an appropriate locale to be used in conversion and validation.
`protected Binder<BEAN>`	`getBinder()`	Returns the `Binder` connected to this `Binding` instance.
`SerializableBiPredicate<TARGET,TARGET>`	`getEqualityPredicate()`	Used in comparison of the current value of a field with its initial value.
`HasValue<FIELDVALUE>`	`getField()`	Gets the field the binding uses.
`ValueProvider<BEAN,TARGET>`	`getGetter()`	Gets the getter associated with this Binding.
`Setter<BEAN,TARGET>`	`getSetter()`	Gets the setter associated with this Binding.
`BindingValidationStatusHandler`	`getValidationStatusHandler()`	Gets the validation status handler for this Binding.
`boolean`	`hasChanges()`	Checks whether the field that the binding uses has uncommitted changes.
`boolean`	`isAsRequiredEnabled()`	Returns whether asRequired validator is currently enabled or not.
`boolean`	`isConvertBackToPresentation()`	Returns whether the value is converted back to the presentation in the field when a converter is used in binding.
`boolean`	`isReadOnly()`	Gets the current read-only status for this Binding.
`boolean`	`isValidatorsDisabled()`	Returns if validators are currently disabled or not
`void`	`read(BEAN bean)`	Reads the value from given item and stores it to the bound field.
`void`	`setAsRequiredEnabled(boolean asRequiredEnabled)`	Enable or disable asRequired validator.
`void`	`setConvertBackToPresentation(boolean convertBackToPresentation)`	Define whether the value should be converted back to the presentation in the field when a converter is used in binding.
`void`	`setReadOnly(boolean readOnly)`	Sets the read-only status on for this Binding.
`void`	`setValidatorsDisabled(boolean validatorsDisabled)`	Define whether validators are disabled or enabled for this specific binding.
`void`	`unbind()`	Removes this binding from its binder and unregisters the `ValueChangeListener` from any bound `HasValue`.
`BindingValidationStatus<TARGET>`	`validate(boolean fireEvent)`	Validates the field value and returns a `ValidationStatus` instance representing the outcome of the validation.

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

Methods inherited from interface com.vaadin.data.Binder.Binding
validate

- Constructor Detail
  - BindingImpl
```
public BindingImpl(Binder.BindingBuilderImpl<BEAN,FIELDVALUE,TARGET> builder,
                   ValueProvider<BEAN,TARGET> getter,
                   Setter<BEAN,TARGET> setter)
```
- Method Detail
  - getField
```
public HasValue<FIELDVALUE> getField()
```
    Description copied from interface: Binder.Binding
    
    Gets the field the binding uses.
    
    Specified by:
    
    getField in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    the field for the binding
  - findLocale
```
protected Locale findLocale()
```
    Finds an appropriate locale to be used in conversion and validation.
    
    Returns:
    
    the found locale, not null
  - validate
```
public BindingValidationStatus<TARGET> validate(boolean fireEvent)
```
    Description copied from interface: Binder.Binding
    
    Validates the field value and returns a ValidationStatus instance representing the outcome of the validation. Note: Calling this method will not trigger the value update in the bean automatically. This method will attempt to temporarily apply all current changes to the bean and run full bean validation for it. The changes are reverted after bean validation.
    
    Specified by:
    
    validate in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Parameters:
    
    fireEvent - true to fire status event; false to not
    
    Returns:
    
    the validation result.
    
    See Also:
    
    Binder.Binding.validate(), Binder.validate()
  - unbind
```
public void unbind()
```
    Removes this binding from its binder and unregisters the ValueChangeListener from any bound HasValue. It does nothing if it is called for an already unbound binding.
    
    Specified by:
    
    unbind in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Since:
    
    8.2
  - createValueContext
```
protected ValueContext createValueContext()
```
    Creates a value context from the current state of the binding and its field.
    
    Returns:
    
    the value context
  - getBinder
```
protected Binder<BEAN> getBinder()
```
    Returns the Binder connected to this Binding instance.
    
    Returns:
    
    the binder
  - getValidationStatusHandler
```
public BindingValidationStatusHandler getValidationStatusHandler()
```
    Description copied from interface: Binder.Binding
    
    Gets the validation status handler for this Binding.
    
    Specified by:
    
    getValidationStatusHandler in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    the validation status handler for this binding
  - read
```
public void read(BEAN bean)
```
    Description copied from interface: Binder.Binding
    
    Reads the value from given item and stores it to the bound field.
    
    Specified by:
    
    read in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Parameters:
    
    bean - the bean to read from
  - setReadOnly
```
public void setReadOnly(boolean readOnly)
```
    Description copied from interface: Binder.Binding
    
    Sets the read-only status on for this Binding. Setting a Binding read-only will mark the field read-only and not write any values from the fields to the bean.
    This helper method is the preferred way to control the read-only state of the bound field.
    
    Specified by:
    
    setReadOnly in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Parameters:
    
    readOnly - true to set binding read-only; false to enable writes
  - isReadOnly
```
public boolean isReadOnly()
```
    Description copied from interface: Binder.Binding
    
    Gets the current read-only status for this Binding.
    
    Specified by:
    
    isReadOnly in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    true if read-only; false if not
    
    See Also:
    
    Binder.Binding.setReadOnly(boolean)
  - getGetter
```
public ValueProvider<BEAN,TARGET> getGetter()
```
    Description copied from interface: Binder.Binding
    
    Gets the getter associated with this Binding.
    
    Specified by:
    
    getGetter in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    the getter
  - getSetter
```
public Setter<BEAN,TARGET> getSetter()
```
    Description copied from interface: Binder.Binding
    
    Gets the setter associated with this Binding.
    
    Specified by:
    
    getSetter in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    the setter
  - setAsRequiredEnabled
```
public void setAsRequiredEnabled(boolean asRequiredEnabled)
```
    Description copied from interface: Binder.Binding
    
    Enable or disable asRequired validator. The validator is enabled by default.
    
    Specified by:
    
    setAsRequiredEnabled in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Parameters:
    
    asRequiredEnabled - false if asRequired validator should be disabled, true otherwise (default)
    
    See Also:
    
    Binder.BindingBuilder.asRequired(String), Binder.BindingBuilder.asRequired(ErrorMessageProvider)
  - isAsRequiredEnabled
```
public boolean isAsRequiredEnabled()
```
    Description copied from interface: Binder.Binding
    
    Returns whether asRequired validator is currently enabled or not.
    
    Specified by:
    
    isAsRequiredEnabled in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    false if asRequired validator is disabled true otherwise (default)
    
    See Also:
    
    Binder.BindingBuilder.asRequired(String), Binder.BindingBuilder.asRequired(ErrorMessageProvider)
  - setValidatorsDisabled
```
public void setValidatorsDisabled(boolean validatorsDisabled)
```
    Description copied from interface: Binder.Binding
    
    Define whether validators are disabled or enabled for this specific binding.
    
    Specified by:
    
    setValidatorsDisabled in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Parameters:
    
    validatorsDisabled - A boolean value
  - isValidatorsDisabled
```
public boolean isValidatorsDisabled()
```
    Description copied from interface: Binder.Binding
    
    Returns if validators are currently disabled or not
    
    Specified by:
    
    isValidatorsDisabled in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    A boolean value
  - setConvertBackToPresentation
```
public void setConvertBackToPresentation(boolean convertBackToPresentation)
```
    Description copied from interface: Binder.Binding
    
    Define whether the value should be converted back to the presentation in the field when a converter is used in binding.
    
    Specified by:
    
    setConvertBackToPresentation in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Parameters:
    
    convertBackToPresentation - A boolean value
  - isConvertBackToPresentation
```
public boolean isConvertBackToPresentation()
```
    Description copied from interface: Binder.Binding
    
    Returns whether the value is converted back to the presentation in the field when a converter is used in binding.
    
    Specified by:
    
    isConvertBackToPresentation in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    A boolean value
  - hasChanges
```
public boolean hasChanges()
                   throws IllegalStateException
```
    Description copied from interface: Binder.Binding
    
    Checks whether the field that the binding uses has uncommitted changes.
    
    Specified by:
    
    hasChanges in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    true if the field the binding uses has uncommitted changes, otherwise false.
    
    Throws:
    
    IllegalStateException - if the binding is no longer attached to a Binder.
  - getEqualityPredicate
```
public SerializableBiPredicate<TARGET,TARGET> getEqualityPredicate()
```
    Description copied from interface: Binder.Binding
    
    Used in comparison of the current value of a field with its initial value.
    Once set, the value of the field that binding uses will be compared with the initial value for hasChanged.
    
    Specified by:
    
    getEqualityPredicate in interface Binder.Binding<BEAN,FIELDVALUE>
    
    Returns:
    
    the predicate to use for equality comparison

Class Binder.BindingImpl<BEAN,​FIELDVALUE,​TARGET>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface com.vaadin.data.Binder.Binding

Constructor Detail

BindingImpl

Method Detail

getField

findLocale

validate

unbind

createValueContext

getBinder

getValidationStatusHandler

read

setReadOnly

isReadOnly

getGetter

getSetter

setAsRequiredEnabled

isAsRequiredEnabled

setValidatorsDisabled

isValidatorsDisabled

setConvertBackToPresentation

isConvertBackToPresentation

hasChanges

getEqualityPredicate

Class Binder.BindingImpl<BEAN,FIELDVALUE,TARGET>