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com.vaadin.flow.component.listbox.
Class ListBoxBase<C extends ListBoxBase<C,ITEM,VALUE>,ITEM,VALUE>
- java.lang.Object
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- com.vaadin.flow.component.Component
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- com.vaadin.flow.component.AbstractField<C,T>
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- com.vaadin.flow.component.AbstractSinglePropertyField<C,VALUE>
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- com.vaadin.flow.component.listbox.ListBoxBase<C,ITEM,VALUE>
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All Implemented Interfaces:
AttachNotifier, DetachNotifier, HasComponents, HasElement, HasEnabled, HasSize, HasValue<AbstractField.ComponentValueChangeEvent<C,VALUE>,VALUE>, HasValueAndElement<AbstractField.ComponentValueChangeEvent<C,VALUE>,VALUE>, HasDataProvider<ITEM>, HasItems<ITEM>, HasItemsAndComponents<ITEM>, Serializable
Direct Known Subclasses:
@Tag(value="vaadin-list-box") @NpmPackage(value="@vaadin/vaadin-list-box", version="1.4.0") @JsModule(value="@vaadin/vaadin-list-box/src/vaadin-list-box.js") public abstract class ListBoxBase<C extends ListBoxBase<C,ITEM,VALUE>,ITEM,VALUE> extends AbstractSinglePropertyField<C,VALUE> implements HasItemsAndComponents<ITEM>, HasDataProvider<ITEM>, HasSizeBase class for the
ListBoxandMultiSelectListBox.Author:
Vaadin Ltd
See Also:
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Nested Class Summary
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Nested classes/interfaces inherited from class com.vaadin.flow.component.AbstractField
AbstractField.ComponentValueChangeEvent<C extends Component,V>
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Nested classes/interfaces inherited from interface com.vaadin.flow.data.binder.HasItemsAndComponents
HasItemsAndComponents.ItemComponent<T>
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Nested classes/interfaces inherited from interface com.vaadin.flow.component.HasValue
HasValue.ValueChangeEvent<V>, HasValue.ValueChangeListener<E extends HasValue.ValueChangeEvent<?>>
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Method Summary
All Methods Modifier and Type Method and Description DataProvider<ITEM,?>getDataProvider()Gets the data provider.
SerializablePredicate<ITEM>getItemEnabledProvider()Returns the item enabled predicate.
ComponentRenderer<? extends Component,ITEM>getItemRenderer()Returns the item component renderer.
protected voidonAttach(AttachEvent attachEvent)Called when the component is attached to a UI.
protected voidonDetach(DetachEvent detachEvent)Called when the component is detached from a UI.
voidonEnabledStateChanged(boolean enabled)Handle component enable state when the enabled state changes.
voidsetDataProvider(DataProvider<ITEM,?> dataProvider)Sets the data provider for this listing.
voidsetItemEnabledProvider(SerializablePredicate<ITEM> itemEnabledProvider)Sets the item enabled predicate for this ListBox.
voidsetRenderer(ComponentRenderer<? extends Component,ITEM> itemRenderer)Sets the item renderer for this ListBox.
voidsetRequiredIndicatorVisible(boolean requiredIndicatorVisible)Not supported!
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Methods inherited from class com.vaadin.flow.component.AbstractSinglePropertyField
getSynchronizationRegistration, hasValidValue, setPresentationValue, setSynchronizedEvent
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Methods inherited from class com.vaadin.flow.component.AbstractField
addValueChangeListener, getEmptyValue, getValue, isEmpty, setModelValue, setValue, valueEquals
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Methods inherited from class com.vaadin.flow.component.Component
addListener, fireEvent, from, get, getChildren, getElement, getEventBus, getId, getLocale, getParent, getTranslation, getTranslation, getTranslation, getTranslation, getUI, hasListener, isAttached, isTemplateMapped, isVisible, set, setElement, setId, setVisible
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.vaadin.flow.data.binder.HasItemsAndComponents
addComponents, getItemPosition, prependComponents
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Methods inherited from interface com.vaadin.flow.component.HasComponents
add, add, addComponentAsFirst, addComponentAtIndex, remove, removeAll
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Methods inherited from interface com.vaadin.flow.component.HasEnabled
isEnabled, setEnabled
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Methods inherited from interface com.vaadin.flow.component.HasElement
getElement
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Methods inherited from interface com.vaadin.flow.data.binder.HasDataProvider
setItems
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Methods inherited from interface com.vaadin.flow.component.HasSize
getCssSize, getHeight, getHeightUnit, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getWidth, getWidthUnit, setHeight, setHeight, setHeightFull, setMaxHeight, setMaxHeight, setMaxWidth, setMaxWidth, setMinHeight, setMinHeight, setMinWidth, setMinWidth, setSizeFull, setSizeUndefined, setWidth, setWidth, setWidthFull
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Methods inherited from interface com.vaadin.flow.component.HasValueAndElement
isReadOnly, isRequiredIndicatorVisible, setReadOnly
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Methods inherited from interface com.vaadin.flow.component.HasValue
clear, getOptionalValue
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Methods inherited from interface com.vaadin.flow.component.AttachNotifier
addAttachListener
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Methods inherited from interface com.vaadin.flow.component.DetachNotifier
addDetachListener
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Method Detail
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setDataProvider
public void setDataProvider(DataProvider<ITEM,?> dataProvider)Description copied from interface:
HasDataProviderSets the data provider for this listing. The data provider is queried for displayed items as needed.
Specified by:
setDataProviderin interfaceHasDataProvider<ITEM>Parameters:
dataProvider- the data provider, not null
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onAttach
protected void onAttach(AttachEvent attachEvent)Description copied from class:
ComponentCalled when the component is attached to a UI.
The default implementation does nothing.
This method is invoked before the
AttachEventis fired for the component.
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onDetach
protected void onDetach(DetachEvent detachEvent)Description copied from class:
ComponentCalled when the component is detached from a UI.
The default implementation does nothing.
This method is invoked before the
DetachEventis fired for the component.
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getDataProvider
public DataProvider<ITEM,?> getDataProvider()Gets the data provider.
Returns:
the data provider, not
null
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getItemRenderer
public ComponentRenderer<? extends Component,ITEM> getItemRenderer()Returns the item component renderer.
Returns:
the item renderer
See Also:
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setRenderer
public void setRenderer(ComponentRenderer<? extends Component,ITEM> itemRenderer)Sets the item renderer for this ListBox. The renderer is applied to each item to create a component which represents the item.
Parameters:
itemRenderer- the item renderer, notnull
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setItemEnabledProvider
public void setItemEnabledProvider(SerializablePredicate<ITEM> itemEnabledProvider)Sets the item enabled predicate for this ListBox. The predicate is applied to each item to determine whether the item should be enabled (
true) or disabled (false). Disabled items are displayed as grayed out and the user cannot select them. The default predicate always returns true (all the items are enabled).Parameters:
itemEnabledProvider- the item enable predicate, notnull
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getItemEnabledProvider
public SerializablePredicate<ITEM> getItemEnabledProvider()Returns the item enabled predicate.
Returns:
the item enabled predicate
See Also:
setItemEnabledProvider(com.vaadin.flow.function.SerializablePredicate<ITEM>)
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setRequiredIndicatorVisible
public void setRequiredIndicatorVisible(boolean requiredIndicatorVisible)Not supported!
Not supported by the client-side web-component, see issue in GitHub.
Specified by:
setRequiredIndicatorVisiblein interfaceHasValue<AbstractField.ComponentValueChangeEvent<C extends ListBoxBase<C,ITEM,VALUE>,VALUE>,VALUE>Specified by:
setRequiredIndicatorVisiblein interfaceHasValueAndElement<AbstractField.ComponentValueChangeEvent<C extends ListBoxBase<C,ITEM,VALUE>,VALUE>,VALUE>Parameters:
requiredIndicatorVisible-trueto make the required indicator visible,falseif notThrows:
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onEnabledStateChanged
public void onEnabledStateChanged(boolean enabled)Description copied from class:
ComponentHandle component enable state when the enabled state changes.
By default this sets or removes the 'disabled' attribute from the element. This can be overridden to have custom handling.
Overrides:
onEnabledStateChangedin classComponentParameters:
enabled- the new enabled state of the component
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