Package com.vaadin.data

Class ValueContext

java.lang.Object

com.vaadin.data.ValueContext

All Implemented Interfaces:

Serializable

public class ValueContext
extends Object
implements Serializable

Value context for Converters. Contains relevant information for converting values.

Since:

8.0

Author:

Vaadin Ltd.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ValueContext()	Constructor for ValueContext without a Locale.
ValueContext(Component component)	Constructor for ValueContext.
ValueContext(Component component, HasValue<?> hasValue)	Constructor for ValueContext.
ValueContext(Component component, HasValue<?> hasValue, Locale locale)	Constructor for ValueContext.
ValueContext(Locale locale)	Constructor for ValueContext without a Component.

Method Summary

Modifier and Type	Method	Description
Optional<Component>	getComponent()	Returns an Optional for the Component related to value conversion.
Optional<HasValue<?>>	getHasValue()	Returns an Optional for the HasValue used in the value conversion.
Optional<Locale>	getLocale()	Returns an Optional for the Locale used in the value conversion.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ValueContext

public ValueContext()

Constructor for ValueContext without a Locale.

ValueContext

public ValueContext(Locale locale)

Constructor for ValueContext without a Component.

Parameters:

locale - The locale used with conversion. Can be null.

ValueContext

public ValueContext(Component component)

Constructor for ValueContext.

Parameters:

component - The component related to current value. Can be null. If the component implements HasValue, it will be returned by getHasValue() as well.

ValueContext

public ValueContext(Component component,
                    HasValue<?> hasValue)

Constructor for ValueContext.

Parameters:

component - The component related to current value. Can be null.

hasValue - The value source related to current value. Can be null.

Since:

8.1

ValueContext

public ValueContext(Component component,
                    HasValue<?> hasValue,
                    Locale locale)

Constructor for ValueContext.

Parameters:

component - The component can be null.

locale - The locale used with conversion. Can be null.

hasValue - The value source related to current value. Can be null.

Since:

8.1

Method Detail

getComponent

public Optional<Component> getComponent()

Returns an Optional for the Component related to value conversion.

Returns:

the optional of component

getLocale

public Optional<Locale> getLocale()

Returns an Optional for the Locale used in the value conversion.

Returns:

the optional of locale

getHasValue

public Optional<HasValue<?>> getHasValue()

Returns an Optional for the HasValue used in the value conversion. In certain complicated cases, ex. cross-field validation, HasValue might be not available.

Returns:

the optional of HasValue

Since:

8.1