Package com.vaadin.flow.component.combobox

Class ComboBoxDataCommunicator<TItem>

java.lang.Object

com.vaadin.flow.data.provider.DataCommunicator<TItem>

com.vaadin.flow.component.combobox.ComboBoxDataCommunicator<TItem>

Type Parameters:

TItem - The type of the item selectable in the combo box

All Implemented Interfaces:

Serializable

public class ComboBoxDataCommunicator<TItem>
extends DataCommunicator<TItem>

Customized data communicator that uses a custom key mapper for preserving keys of selected items when using lazy-loading.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	ComboBoxDataCommunicator.SelectionPreservingKeyMapper<TItem>	Customized key mapper that does not remove key for an item as long as it is selected.

Nested classes/interfaces inherited from class com.vaadin.flow.data.provider.DataCommunicator

DataCommunicator.EmptyDataProvider<T1>, DataCommunicator.Filter<F>

Field Summary

Fields inherited from class com.vaadin.flow.data.provider.DataCommunicator

DEFAULT_PAGE_INCREASE_COUNT

Constructor Summary

Constructors

Constructor	Description
ComboBoxDataCommunicator(ComboBoxBase<?,TItem,?> comboBox, DataGenerator<TItem> dataGenerator, ArrayUpdater arrayUpdater, SerializableConsumer<elemental.json.JsonArray> dataUpdater, StateNode stateNode, boolean fetchEnabled)

Method Summary

Modifier and Type	Method	Description
void	notifySelectionChanged()

Methods inherited from class com.vaadin.flow.data.provider.DataCommunicator

buildQuery, computeRequestedRange, confirmUpdate, enablePushUpdates, fetchFromProvider, getBackEndSorting, getDataProvider, getDataProviderSize, getFilter, getInMemorySorting, getItem, getItemCount, getItemCountEstimate, getItemCountEstimateIncrease, getKeyMapper, getPageSize, getPassivatedKeys, handleDataRefreshEvent, isDefinedSize, isFetchEnabled, isItemActive, isPagingEnabled, refresh, reset, setBackEndSorting, setCountCallback, setDataProvider, setDataProvider, setDefinedSize, setFetchEnabled, setInMemorySorting, setItemCountEstimate, setItemCountEstimateIncrease, setKeyMapper, setPageSize, setPagingEnabled, setRequestedRange

Methods inherited from class java.lang.Object

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

Constructor Details

ComboBoxDataCommunicator

public ComboBoxDataCommunicator(ComboBoxBase<?,TItem,?> comboBox,
 DataGenerator<TItem> dataGenerator,
 ArrayUpdater arrayUpdater,
 SerializableConsumer<elemental.json.JsonArray> dataUpdater,
 StateNode stateNode,
 boolean fetchEnabled)

Method Details

notifySelectionChanged

public void notifySelectionChanged()