Package com.storedobject.vaadin

Class LabelField<T>

java.lang.Object

com.vaadin.flow.component.Component

com.vaadin.flow.component.AbstractField<com.vaadin.flow.component.customfield.CustomField<T>,T>

com.vaadin.flow.component.customfield.CustomField<T>

com.storedobject.vaadin.CustomField<T>

com.storedobject.vaadin.LabelField<T>

Type Parameters:

T - Value type of the field

All Implemented Interfaces:

com.vaadin.flow.component.AttachNotifier, com.vaadin.flow.component.BlurNotifier<com.vaadin.flow.component.customfield.CustomField<T>>, com.vaadin.flow.component.DetachNotifier, com.vaadin.flow.component.Focusable<com.vaadin.flow.component.customfield.CustomField<T>>, com.vaadin.flow.component.FocusNotifier<com.vaadin.flow.component.customfield.CustomField<T>>, com.vaadin.flow.component.HasElement, com.vaadin.flow.component.HasEnabled, com.vaadin.flow.component.HasHelper, com.vaadin.flow.component.HasLabel, com.vaadin.flow.component.HasSize, com.vaadin.flow.component.HasStyle, com.vaadin.flow.component.HasTheme, com.vaadin.flow.component.HasValidation, com.vaadin.flow.component.HasValue<com.vaadin.flow.component.AbstractField.ComponentValueChangeEvent<com.vaadin.flow.component.customfield.CustomField<T>,T>,T>, com.vaadin.flow.component.HasValueAndElement<com.vaadin.flow.component.AbstractField.ComponentValueChangeEvent<com.vaadin.flow.component.customfield.CustomField<T>,T>,T>, com.vaadin.flow.component.shared.HasTooltip, com.vaadin.flow.component.shared.HasValidationProperties, com.vaadin.flow.component.shared.InputField<com.vaadin.flow.component.AbstractField.ComponentValueChangeEvent<com.vaadin.flow.component.customfield.CustomField<T>,T>,T>, com.vaadin.flow.data.binder.HasItems<T>, Serializable

public class LabelField<T>
extends CustomField<T>
implements com.vaadin.flow.data.binder.HasItems<T>

A field that displays one item from a list. Item selection can be changed by clicking on it.

By default, toString() method is used to convert the item into its displayable text unless a function is set for this purpose using setItemLabelGenerator(ItemLabelGenerator).

Author:

Syam

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.vaadin.flow.component.AbstractField

com.vaadin.flow.component.AbstractField.ComponentValueChangeEvent<C extends com.vaadin.flow.component.Component,V>

Nested classes/interfaces inherited from interface com.vaadin.flow.component.BlurNotifier

com.vaadin.flow.component.BlurNotifier.BlurEvent<C extends com.vaadin.flow.component.Component>

Nested classes/interfaces inherited from interface com.vaadin.flow.component.FocusNotifier

com.vaadin.flow.component.FocusNotifier.FocusEvent<C extends com.vaadin.flow.component.Component>

Nested classes/interfaces inherited from interface com.vaadin.flow.component.HasValue

com.vaadin.flow.component.HasValue.ValueChangeEvent<V>, com.vaadin.flow.component.HasValue.ValueChangeListener<E extends com.vaadin.flow.component.HasValue.ValueChangeEvent<?>>

Constructor Summary

Constructors

Constructor	Description
LabelField(String label, List<T> items)	Constructor.
LabelField(List<T> items)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected T	generateModelValue()
int	getIndex()	Get the index of the currently displayed label.
int	getIndex(T value)	Get index of an item.
T	getValue(int index)	Get the item for the index passed.
void	setIndex(int newIndex)	Set a new value.
void	setItemLabelGenerator(com.vaadin.flow.component.ItemLabelGenerator<T> labelGenerator)	Set a label generator to convert item values into displayable labels.
void	setItems(Collection<T> items)
protected void	setPresentationValue(T value)

Methods inherited from class com.storedobject.vaadin.CustomField

addField, addField, focus

Methods inherited from class com.vaadin.flow.component.customfield.CustomField

add, addThemeVariants, getLabel, onAttach, remove, removeThemeVariants, setLabel, updateValue

Methods inherited from class com.vaadin.flow.component.AbstractField

addValueChangeListener, getEmptyValue, getValue, isEmpty, setModelValue, setValue, valueEquals

Methods inherited from class com.vaadin.flow.component.Component

addListener, findAncestor, fireEvent, from, get, getChildren, getElement, getEventBus, getId, getListeners, getLocale, getParent, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getUI, hasListener, isAttached, isTemplateMapped, isVisible, onDetach, onEnabledStateChanged, removeFromParent, scrollIntoView, scrollIntoView, set, setElement, setId, setVisible

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.flow.component.AttachNotifier

addAttachListener

Methods inherited from interface com.vaadin.flow.component.BlurNotifier

addBlurListener

Methods inherited from interface com.vaadin.flow.component.DetachNotifier

addDetachListener

Methods inherited from interface com.vaadin.flow.component.Focusable

addFocusShortcut, blur, getTabIndex, setTabIndex

Methods inherited from interface com.vaadin.flow.component.FocusNotifier

addFocusListener

Methods inherited from interface com.vaadin.flow.component.HasElement

getElement

Methods inherited from interface com.vaadin.flow.component.HasEnabled

isEnabled, setEnabled

Methods inherited from interface com.vaadin.flow.component.HasHelper

getHelperComponent, getHelperText, setHelperComponent, setHelperText

Methods inherited from interface com.vaadin.flow.data.binder.HasItems

setItems, setItems

Methods inherited from interface com.vaadin.flow.component.HasSize

getHeight, getHeightUnit, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getWidth, getWidthUnit, setHeight, setHeight, setHeightFull, setMaxHeight, setMaxHeight, setMaxWidth, setMaxWidth, setMinHeight, setMinHeight, setMinWidth, setMinWidth, setSizeFull, setSizeUndefined, setWidth, setWidth, setWidthFull

Methods inherited from interface com.vaadin.flow.component.HasStyle

addClassName, addClassNames, getClassName, getClassNames, getStyle, hasClassName, removeClassName, removeClassNames, setClassName, setClassName

Methods inherited from interface com.vaadin.flow.component.HasTheme

addThemeName, addThemeNames, getThemeName, getThemeNames, hasThemeName, removeThemeName, removeThemeNames, setThemeName, setThemeName

Methods inherited from interface com.vaadin.flow.component.shared.HasTooltip

getTooltip, setTooltipText

Methods inherited from interface com.vaadin.flow.component.HasValidation

setManualValidation

Methods inherited from interface com.vaadin.flow.component.shared.HasValidationProperties

getErrorMessage, isInvalid, setErrorMessage, setInvalid

Methods inherited from interface com.vaadin.flow.component.HasValue

addValueChangeListener, clear, getEmptyValue, getOptionalValue, getValue, isEmpty, setValue

Methods inherited from interface com.vaadin.flow.component.HasValueAndElement

isReadOnly, isRequiredIndicatorVisible, setReadOnly, setRequiredIndicatorVisible

Constructor Details

LabelField

public LabelField(List<T> items)

Constructor.

Parameters:

items - List of items

LabelField

public LabelField(String label,
 List<T> items)

Constructor.

Parameters:

label - Label

items - List items

Method Details

setItems

public void setItems(Collection<T> items)

Specified by:

setItems in interface com.vaadin.flow.data.binder.HasItems<T>

setIndex

public void setIndex(int newIndex)

Set a new value.

Parameters:

newIndex - Index of the label value to be set

getIndex

public int getIndex()

Get the index of the currently displayed label.

Returns:

Index of the current label.

getValue

public T getValue(int index)

Get the item for the index passed.

Parameters:

index - Index

Returns:

Item at the index.

getIndex

public int getIndex(T value)

Get index of an item.

Parameters:

value - Item for which index needs to determined

Returns:

Index of the item.

generateModelValue

protected T generateModelValue()

Specified by:

generateModelValue in class com.vaadin.flow.component.customfield.CustomField<T>

setPresentationValue

protected void setPresentationValue(T value)

Specified by:

setPresentationValue in class com.vaadin.flow.component.customfield.CustomField<T>

setItemLabelGenerator

public void setItemLabelGenerator(com.vaadin.flow.component.ItemLabelGenerator<T> labelGenerator)

Set a label generator to convert item values into displayable labels.

Parameters:

labelGenerator - Label generator