Package com.vaadin.flow.data.value

Interface HasValueChangeMode

All Superinterfaces:

Serializable

All Known Implementing Classes:

AbstractNumberField, BigDecimalField, EmailField, Input, IntegerField, NumberField, PasswordField, RangeInput, RichTextEditor, TextArea, TextField, TextFieldBase

public interface HasValueChangeMode
extends Serializable

Denotes that the component is able to change the way its value on the client side is synchronized with the server side.

A class implementing this interface should typically also implement HasValue even though this is not required on the API level.

Since:

1.0.

Author:

Vaadin Ltd

See Also:

• AbstractSinglePropertyField.setSynchronizedEvent(String)

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_CHANGE_TIMEOUT	Default value change timeout for textual inputs in milliseconds.

Method Summary

Modifier and Type	Method	Description
ValueChangeMode	getValueChangeMode()	Gets current value change mode of the component.
default int	getValueChangeTimeout()	Returns the currently set timeout, for how often HasValue.ValueChangeEvents are triggered when the ValueChangeMode is set to ValueChangeMode.LAZY, or ValueChangeMode.TIMEOUT.
void	setValueChangeMode(ValueChangeMode valueChangeMode)	Sets new value change mode for the component.
default void	setValueChangeTimeout(int valueChangeTimeout)	Sets how often HasValue.ValueChangeEvents are triggered when the ValueChangeMode is set to ValueChangeMode.LAZY, or ValueChangeMode.TIMEOUT.

Field Details

DEFAULT_CHANGE_TIMEOUT

static final int DEFAULT_CHANGE_TIMEOUT

Default value change timeout for textual inputs in milliseconds.

See Also:

• Constant Field Values

Method Details

getValueChangeMode

ValueChangeMode getValueChangeMode()

Gets current value change mode of the component.

Returns:

current value change mode of the component, or null if the value is not synchronized

setValueChangeMode

void setValueChangeMode(ValueChangeMode valueChangeMode)

Sets new value change mode for the component.

Parameters:

valueChangeMode - new value change mode, or null to disable the value synchronization

setValueChangeTimeout

default void setValueChangeTimeout(int valueChangeTimeout)

Sets how often HasValue.ValueChangeEvents are triggered when the ValueChangeMode is set to ValueChangeMode.LAZY, or ValueChangeMode.TIMEOUT.

Implementations should use ValueChangeMode.applyChangeTimeout(ValueChangeMode, int, DomListenerRegistration).

Parameters:

valueChangeTimeout - the timeout in milliseconds of how often HasValue.ValueChangeEvents are triggered.

Throws:

UnsupportedOperationException - if neither ValueChangeMode.LAZY, nor ValueChangeMode.TIMEOUT is supported

getValueChangeTimeout

default int getValueChangeTimeout()

Returns the currently set timeout, for how often HasValue.ValueChangeEvents are triggered when the ValueChangeMode is set to ValueChangeMode.LAZY, or ValueChangeMode.TIMEOUT.

Returns:

the timeout in milliseconds of how often HasValue.ValueChangeEvents are triggered.

Throws:

UnsupportedOperationException - if neither ValueChangeMode.LAZY, nor ValueChangeMode.TIMEOUT is supported